☆ 4.8 Review

Carbon-based single-atom catalysts: impacts of atomic coordination on the oxygen reduction reaction

NANOSCALE (2023)

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Rational design of carbon-based electrocatalysts for enhancing redox reactions in rechargeable metal batteries

Song Chen et al.

Summary: The development of advanced energy devices requires efficient and cost-effective electrode materials. Carbon-based nanomaterials have attracted significant research attention as they possess good electronic conductivity, structure flexibility, and desirable physicochemical properties. Regulating the electrocatalytic properties of carbon-based nanomaterials through electronic and microstructure engineering is crucial for specific redox reactions in metal-based batteries. However, the importance of carbon-based electrocatalysts for rechargeable metal batteries has not been comprehensively discussed. This article provides an overview on the strategies of electronic and microstructure engineering and summarizes recent advances in designing carbon-based electrocatalysts for redox reactions in metal-air and metal-halogen batteries. The relationships between composition, structure, and electrocatalytic properties of carbon-based materials are discussed to enhance battery performance. The challenges and opportunities of carbon-based active materials for future energy-related applications are also addressed.

NANO RESEARCH (2023)

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Article Chemistry, Physical

Tuning Co-Catalytic Sites in Hierarchical Porous N-Doped Carbon for High-Performance Rechargeable and Flexible Zn-Air Battery

Xinxin Shu et al.

Summary: The strategy of heteroatom doping and metal active sites can synergistically promote oxygen electrocatalysis, and the combination of theoretical simulations with experimental results provides new opportunities to understand the electrocatalytic mechanism. In this study, 3D carbon nanosheets aggregate with highly branched carbon nanotubes and cobalt active sites were prepared as electrocatalysts, exhibiting superior bifunctional activities to oxygen reduction and evolution reactions. Furthermore, rechargeable Zn-Air battery and all-solid-state cable-type Zn-Air battery showed impressive performance.

ADVANCED ENERGY MATERIALS (2023)

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Article Chemistry, Physical

Roles of structural defects in polycrystalline platinum nanowires for enhanced oxygen reduction activity

Xiao Zhao et al.

Summary: By using molecular-level and operando spectroscopic evidence, this study reveals that the enhanced oxygen reduction reaction (ORR) activity in polycrystalline platinum nanowires is closely related to structural defects, including grain boundaries, atomic steps, and amorphous regions. The presence of grain boundaries induces local micro-strain, which increases with the misorientation angles of the grain boundaries. Additionally, atomic steps and amorphous regions disrupt interfacial water networks and promote proton transfer, destabilizing ORR intermediates on terraces.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

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Article Materials Science, Multidisciplinary

Single-atom Co-N 4 catalytic sites anchored on N-doped ordered mesoporous carbon for excellent Zn-air batteries

Na Li et al.

Summary: Developing efficient transition metal-nitrogen-carbon catalysts with abundant accessible active sites has been in the limelight in recent years. This study presents a simple and environmentally-friendly method to fabricate a single-atom Co electrocatalyst with exceptional oxygen reduction reaction (ORR) activity for Zn-air batteries. The Co single atoms coordinated with adjacent N atoms on doped ordered mesoporous carbon, forming atomic Co-N4 moieties. The Co-SA/N-C900 catalyst exhibits high ORR activity, outstanding discharge specific capacity, peak power density, and stability.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2023)

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Review Chemistry, Physical

Atomic design of carbon -based dual -metal site catalysts for energy applications

Huishan Shang et al.

Summary: Carbon-based dual-metal sites catalysts (DMSCs) have become a new frontier in sustainable energy due to their unique coordination environments, electronic structure, and maximized atom utilization. The utilization of carbon-based DMSCs offers new possibilities for achieving outstanding catalytic performance, selectivity, and recyclability in energy-related catalysis. This review summarizes recent breakthroughs in carbon-based DMSCs for energy catalysis, including their classifications, potential in energy conversion reactions, and future challenges and opportunities.

NANO RESEARCH (2023)

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Article Chemistry, Multidisciplinary

Engineering the Electronic Structure of Single-Atom Iron Sites with Boosted Oxygen Bifunctional Activity for Zinc-Air Batteries

Zhijun Li et al.

Summary: Researchers have developed a new catalyst consisting of atomically dispersed iron atoms supported on a mesoporous nitrogen-doped carbon material. This catalyst exhibits remarkable activity for both oxygen reduction and evolution reactions in a wide pH range. The zinc-air battery assembled with this catalyst outperforms the traditional Pt/C+RuO2 counterpart in terms of power density, capacity, and cycling stability. These findings highlight the importance of electronic structure engineering of metal sites in catalytic activity.

ADVANCED MATERIALS (2023)

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Review Chemistry, Physical

Atomic design of carbon-based dual-metal site catalysts for energy applications

Huishan Shang et al.

Summary: Carbon-based dual-metal sites catalysts (DMSCs) have emerged as a new frontier in the field of sustainable energy. They offer unique coordination environments, electronic structures, and maximized atom utilization. By exploring the potential of DMSCs in energy conversion reactions and discussing their classifications, this review explores the outstanding catalytic performance and recyclability they offer. Challenges and opportunities for future energy applications of carbon-based DMSCs are also predicted.

NANO RESEARCH (2023)

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Article Chemistry, Physical

Boosting the Acidic Oxygen Reduction Activity of p-Block Single-Atomic Catalyst via p-p Orbital Coupling and Pore Engineering

Hu Wang et al.

Summary: By adjusting the pore structure, highly efficient Sn SACs with exceptional ORR performances in acid medium were prepared. SnN3O-50 exhibited a half-wave potential up to 0.816 V, with a loss of only 15 mV after 10,000 potential cycles. The fuel cell and zinc-air battery assembled using SnN3O-50 as cathodes achieved peak power densities of 502 and 173.5 mW cm(-2), respectively, demonstrating great potential for practical applications.

SMALL STRUCTURES (2023)

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Article Chemistry, Physical

Fe, Cu dual-metal single atom catalyst on commercial carbon black for efficient oxygen reduction reaction

Hongzhou Yang et al.

Summary: A Fe, Cu dual metal single atom catalyst (SAC) was synthesized and exhibited excellent performance and stability in the oxygen reduction reaction (ORR), making it a promising catalyst for industrial deployment.

JOURNAL OF MATERIALS CHEMISTRY A (2023)

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CoN4 active sites in locally distorted carbon structure for efficient oxygen reduction reaction via regulating coordination environment

Yanqiu Wang et al.

Summary: The study presents a single atom Co catalyst with CoN4 active sites for improving oxygen reduction reaction efficiency through adjusting the coordination environment of active sites. The catalyst shows higher half-wave potential and kinetic current density in alkaline solution compared to Pt/C, demonstrating promising performance for applications in energy conversion.

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Boosting oxygen-reduction catalysis over mononuclear CuN2+2 moiety for rechargeable Zn-air battery

Jinwen Hu et al.

Summary: This study explores the use of atomically dispersed active sites to enhance the activity of transition metal-nitrogen-carbon (M-N-Cs) electrocatalysts in oxygen reduction reactions, leading to a breakthrough in the field of oxygen reduction. The targeted electrocatalyst exhibits superior performance compared to Benchmark Pt/C, with excellent potential demonstrated in both liquid and solid-state Zn-air battery assemblies.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Physical

A novel 3D hybrid carbon-based conductive network constructed by bimetallic MOF-derived CNTs embedded nitrogen-doped carbon framework for oxygen reduction reaction

Yating Zhang et al.

Summary: In this study, a novel 3D Co-derived CNTs embedded nitrogen-doped carbon framework (Co-CNTs@NCFT) was designed and fabricated as an efficient oxygen reduction reaction (ORR) catalyst. The optimized catalyst exhibited large specific surface area, excellent electrical conductivity, and rapid mass transport rates. Co-CNTs@NCF900 demonstrated superior ORR catalytic activity in alkaline electrolyte, with a high onset potential and half-wave potential, outperforming the commercial Pt/C catalyst.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2022)

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Article Chemistry, Physical

Precise constructed atomically dispersed Fe/Ni sites on porous nitrogen-doped carbon for oxygen reduction

Jirong Bai et al.

Summary: In this study, atomically dispersed bimetallic single atom electrocatalysts were successfully prepared through a novel host-guest strategy. The catalysts exhibited uniformly embedded active sites and lower half-wave potential in alkaline media, leading to improved ORR performance and faster reaction dynamics.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Chemistry, Physical

Biomass-assisted approach for large-scale construction of multi-functional isolated single-atom site catalysts

Tao Wu et al.

Summary: In recent years, isolated single-atom site (ISAS) catalysts have gained attention due to their cost-effectiveness, high atom-utilization efficiency, and superior catalytic performance. In this study, a biomass-assisted pyrolysis-etching-activation (PEA) strategy was developed to prepare ISAS metal decorated on N and B co-doped porous carbon (ISAS M/NBPC) catalysts. These catalysts showed multifunctional features and excellent catalytic activities, such as O-silylation, oxidative dehydrogenation, and transfer hydrogenation.

NANO RESEARCH (2022)

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Manipulating the oxygen reduction reaction pathway on Pt-coordinated motifs

Jiajun Zhao et al.

Summary: Controlling the coordination environment of Pt can manipulate the 2e(-) or 4e(-) reduction pathways, leading to controlled product selectivity and H2O2 generation rate during oxygen reduction.

NATURE COMMUNICATIONS (2022)

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Tuning the Fe-N4 sites by introducing Bi-O bonds in a Fe-N-C system for promoting the oxygen reduction reaction

Huihui Jin et al.

Summary: By doping Bi atoms into the Fe/N-C system, the Fe/Bi-RNC catalyst exhibited higher activity in oxygen reduction reaction, showing superior performance compared to catalysts without Bi doping.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

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Article Chemistry, Physical

Sol-gel pore-sealing strategy imparts tailored electronic structure to the atomically dispersed Ru sites for efficient oxygen reduction reaction

Lixiu Cui et al.

Summary: The study presents a facile method for anchoring N coordinated Ru single atoms onto the edges of activated carbon spheres, enhancing their accessibility and exhibiting outstanding ORR performance. Theoretical calculations suggest that carbon edges can significantly impact the second coordination spheres of central Ru atoms and Ru-N 4 sites, contributing to improved ORR catalytic activity. The Zn-air battery assembled with Ru-SAs@N-ACSs shows high power density and charge-discharge stability.

ENERGY STORAGE MATERIALS (2022)

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Article Nanoscience & Nanotechnology

Highly Dispersed Co-, N-, S-Doped Topological Defect-Rich Hollow Carbon Nanoboxes as Superior Bifunctional Oxygen Electrocatalysts for Rechargeable Zn-Air Batteries

Mingwen Wang et al.

Summary: This study presents the synthesis of Co, N, and S co-doped hollow carbon nanoboxes (Co-N/S-CNBs) with topological defects. The Co-N/S-CNBs exhibit excellent bifunctional catalytic activity for both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in alkaline electrolytes, surpassing commercial catalysts. The formation of topological defects is attributed to the cracking loss of small molecules from polyphenylene sulfide (PPS), acting as active centers to enhance the catalytic performance.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Chemistry, Multidisciplinary

Mesopore-Rich Fe-N-C Catalyst with FeN4-O-NC Single-Atom Sites Delivers Remarkable Oxygen Reduction Reaction Performance in Alkaline Media

Lishan Peng et al.

Summary: This study reports the development of FeN4-O-NCR catalysts with excellent intrinsic activity for alkaline ORR by optimizing the intrinsic ORR activity of Fe single-atom sites. The catalyst demonstrates outstanding performance in electrochemical tests, outperforming existing catalysts, and exhibits high power density when used in a zinc-air battery.

ADVANCED MATERIALS (2022)

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Review Chemistry, Physical

Recent advances in metal-organic frameworks- derived carbon-based electrocatalysts for the oxygen reduction reaction

Chunyan Yang et al.

Summary: This review systematically summarizes recent progress on advanced MOF-derived carbon-based electrocatalysts for ORR. It focuses on synthetic methods, engineering mechanisms, and their practical applications in fuel cells and metal-air batteries. The challenges and future perspectives for MOF-derived carbon-based electrocatalysts are also discussed.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2022)

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Metal-Organic Framework-Derived Graphene Mesh: a Robust Scaffold for Highly Exposed Fe-N4 Active Sites toward an Excellent Oxygen Reduction Catalyst in Acid Media

Jingjing Li et al.

Summary: This study demonstrates the use of a special ultrathin nitrogen-doped graphene nanomesh as a scaffold for highly exposed Fe-N-4 active sites. By adjusting the pore sizes of the nanomesh, highly loaded single-atom catalysts can be synthesized, which exhibit superior performance in oxygen reduction reactions and fuel cell tests. This work provides a novel strategy for constructing highly exposed transition metals and nitrogen co-doped carbon materials catalysts.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

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Engineering the Local Coordination Environment and Density of FeN4 Sites by Mn Cooperation for Electrocatalytic Oxygen Reduction

Huizhu Cai et al.

Summary: This study investigates the strategy of enhancing the electrocatalytic oxygen reduction reaction (ORR) performance by modulating the local environment and density of FeN4 active sites. The results show that by integrating a second metal Mn with Fe to construct Fe&Mn/N-C catalysts, the density of FeN4 active sites can be enhanced and the electronic structure can be modulated, leading to a decrease in the energy barrier of ORR and improved ORR performance.

SMALL (2022)

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Article Chemistry, Multidisciplinary

Boosting Oxygen Reduction for High-Efficiency H2O2 Electrosynthesis on Oxygen-Coordinated Co-N-C Catalysts

Hangjia Shen et al.

Summary: In this study, a novel single-atom electrocatalyst (Co/NC) with a specifically penta-coordinated Co-N-C configuration is reported. The unique atomic structure improves the selectivity and turnover frequency of the catalyst for H2O2 electrosynthesis, outperforming the state-of-the-art carbon-based catalysts.

SMALL (2022)

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Accelerated intermediate conversion through nickel doping into mesoporous Co-N/C nanopolyhedron for efficient ORR

Jianxin Mao et al.

Journal of Energy Chemistry (2022)

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Article Multidisciplinary Sciences

Tailoring the microenvironment in Fe-N-C electrocatalysts for optimal oxygen reduction reaction performance

Qing Wang et al.

Summary: In this study, a simple synthetic strategy was developed to improve the accessibility and microenvironment of FeN4 sites for enhancing the ORR activity. The synthesized electrocatalyst showed high FeN4 site density and turnover frequency, delivering remarkable ORR performance in alkaline solution.

SCIENCE BULLETIN (2022)

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Article Chemistry, Physical

Boosting oxygen reduction reaction with Fe and Se dual-atom sites supported by nitrogen-doped porous carbon

Zhaoyang Chen et al.

Summary: Dual-atomic-site catalysts (DASCs) have attracted attention for their synergistic effect and are still in the early stages of research. More experimental and theoretical exploration is needed to guide the design of reasonable diatomic active sites. This study discovered the remarkable activity of the Se-1-NC single-atom catalyst for the oxygen reduction reaction and constructed Fe/Se dual-atom catalysts to demonstrate the synergistic effect of dual-atom sites.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

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Article Chemistry, Physical

Ni single atoms anchored on N-doped carbon nanosheets as bifunctional electrocatalysts for Urea-assisted rechargeable Zn-air batteries

Hao Jiang et al.

Summary: In this study, a bifunctional electrocatalyst composed of individually dispersed Ni single atoms on N-doped carbon nanosheets (Ni SAs-NC) was synthesized and demonstrated to exhibit outstanding performance for both oxygen reduction reaction (ORR) and urea oxidation reaction (UOR). By coupling ORR with UOR of low thermodynamic potential, a urea-assisted rechargeable Zn-air battery (ZAB) with significantly decreased charging voltage and high urea elimination rate was achieved. The high bifunctional electrocatalytic activities of Ni SAs-NC resulted in a dramatically increased energy conversion efficiency of 71.8%, improving conventional ZABs by 17.1%. This successful implementation of Ni SAs-based urea-assisted ZABs with improved energy conversion efficiency may advance practical applications of ZAB technology.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

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Article Chemistry, Physical

Sulfur Doping Triggering Enhanced Pt-N Coordination in Graphitic Carbon Nitride-Supported Pt Electrocatalysts toward Efficient Oxygen Reduction Reaction

Yaping Chen et al.

Summary: This study demonstrates the importance of tailoring the interfacial interaction between metal species and supports in supported electrocatalysts. By engineering a highly active interface in S-doped graphitic carbon nitride (SGCN)-supported Pt heterostructured electrocatalysts, enhanced oxygen reduction reaction (ORR) performance is achieved. The coordination and electronic structure of Pt species are modulated by S doping, resulting in strengthened Pt-N bonding and reinforcement of the metal-support interaction. The optimized 20Pt/SGCN-550 electrocatalyst exhibits excellent ORR performance and decent durability. This work not only advances the development of robust ORR electrocatalysts, but also provides a strategy for engineering heterostructured electrocatalysts with tunable interface chemistry for various catalytic applications.

ACS CATALYSIS (2022)

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Article Chemistry, Physical

Rich edge-hosted single-atomic Cu-N4 sites for highly efficient oxygen reduction reaction performance

Lixiu Cui et al.

Summary: This study reports a new method to effectively promote the formation of Cu single-atom sites through hydroxyl-functionalization and NH4Cl-assisted etching strategy. The obtained Cu single atoms are embedded into the defects of carbon nanospheres, exhibiting outstanding ORR activity and high stability. This work provides a new strategy for designing and developing efficient electrocatalysts for energy-related electrocatalytic reactions.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Chemistry, Physical

A highly efficient axial coordinated CoN5 electrocatalyst via pyrolysis-free strategy for alkaline polymer electrolyte fuel cells

Bolong Yang et al.

Summary: In this study, a new synthetic method for preparing an oxygen reduction reaction (ORR) catalyst with Co-N5 active sites was successfully developed. Compared with the traditional Co-N-4 active sites, the obtained catalyst showed higher half-wave potential and maximum power density in alkaline polymer electrolyte fuel cells (APEFCs). The rate of ORR was significantly increased by modulating the electronic and geometric structure. Additionally, in-situ Raman spectroscopy demonstrated that Co-N-5 is the active site and axial Co-N coordination can enhance O-2 adsorption and activation, thereby boosting ORR performance. This research provides atomic-level insight into the relationship between the electronic structure of the active center and the ORR performance, as well as guidance for the rational design of high-efficiency electrocatalysts.

NANO ENERGY (2022)

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Article Chemistry, Physical

A 2D copper-imidazolate framework without thermal treatment as an efficient ORR electrocatalyst for Zn-air batteries

Ana Franco et al.

Summary: A new ultrathin and water-stable 2D Cu-based metal-organic framework has been synthesized with notable electrocatalytic activity for the oxygen reduction reaction in alkaline media, showing excellent performance in both alkaline flooded and all-solid-state Zn-air batteries.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

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Article Chemistry, Multidisciplinary

Role of heteroatom-doping in enhancing catalytic activities and the stability of single-atom catalysts for oxygen reduction and oxygen evolution reactions

Tao Zheng et al.

Summary: Efficient and stable single-atom catalysts (SACs) for oxygen reduction and oxygen evolution reactions were achieved through doping strategy, with the establishment of an intrinsic descriptor for screening the best SACs.

NANOSCALE (2022)

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Article Chemistry, Multidisciplinary

Carbothermal redox reaction in constructing defective carbon as superior oxygen reduction catalysts

Tao Liu et al.

Summary: This research presents a new method for generating defects in carbon-based materials and demonstrates that the reaction between zinc sulfide and carbon at high temperatures can enhance their catalytic activity. The carbon material with a high content of defects and a small number of zinc sulfide nanoparticles exhibits excellent electrocatalytic performance for the oxygen reduction reaction and outperforms a platinum-based catalyst under the same conditions. Furthermore, the zinc air battery driven by this carbon material shows significantly improved discharge performance compared to the platinum-based catalyst.

NANOSCALE (2022)

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Article Materials Science, Multidisciplinary

Cobalt phosphosulfide nanoparticles encapsulated into heteroatom-doped carbon as bifunctional electrocatalyst for Zn-air battery

Xiaolong Xu et al.

Summary: This study proposes CoPS nanoparticles encapsulated with S, P, N tri-doped carbon material as a bifunctional electrocatalyst for the oxygen evolution reaction and the oxygen reduction reaction. Density functional theory calculations show that the P element in CoPS@SPNC improves the electrical conductivity and reduces the OH* hydrogenation energy barrier, thereby enhancing the overall reaction activities. The flexible Zn-air battery with CoPS@SPNC exhibits excellent performance.

ADVANCED POWDER MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Highly accessible and dense surface single metal FeN4 active sites for promoting the oxygen reduction reaction

Guangbo Chen et al.

Summary: The study successfully constructed catalysts with densely exposed surface FeN4 moieties on hierarchically porous carbon, which exhibited excellent ORR activity in acidic media and promising performance in proton exchange membrane fuel cells.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

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Review Chemistry, Physical

Nanoscale Design of Pd-Based Electrocatalysts for Oxygen Reduction Reaction Enhancement in Alkaline Media

Ming Zhou et al.

Summary: This review article discusses the mechanisms of oxygen reduction reaction (ORR) of palladium (Pd)-based electrocatalysts in alkaline media and various strategies for designing high-performance Pd-based catalysts. It also provides insights into future challenges and research directions in the rational design and controlled synthesis of Pd-based ORR electrocatalysts.

SMALL STRUCTURES (2022)

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Review Chemistry, Physical

A Comprehensive Review on the Development of Solid-State Metal-Air Batteries Operated on Oxide-Ion Chemistry

Cuijuan Zhang et al.

Summary: SOMARB is an emerging and promising energy storage technology based on oxide-ion chemistry, which is well suited for managing grid stability and efficiently harvesting renewable energy. Its unique feature lies in the direct reduction of high concentration of O-2 molecules in the gas phase without detrimental formation of diffusion-blocking oxide phase on oxygen electrode surface, distinguishing it from other metal-air batteries.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Tuning the p-Orbital Electron Structure of s-Block Metal Ca Enables a High-Performance Electrocatalyst for Oxygen Reduction

Zhiyu Lin et al.

Summary: This study reports a carbon catalyst with a single calcium atom coordinated with N and O, exhibiting exceptional ORR activities under both acidic and alkaline conditions, as well as outstanding performance in zinc-air battery. The high catalytic activity of main-group calcium is attributed to its electron structure being regulated by N and O coordination, facilitating the adsorption of ORR intermediates and electron transfer.

ADVANCED MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Atomic-Level Modulation of Electronic Density at Cobalt Single-Atom Sites Derived from Metal-Organic Frameworks: Enhanced Oxygen Reduction Performance

Yuanjun Chen et al.

Summary: This study demonstrates the correlation between atomic configuration induced electronic density of single-atom Co active sites and oxygen reduction reaction (ORR) performance. The designed and synthesized Co-1-N3PS/HC catalyst shows outstanding ORR activity in alkaline and acidic media, surpassing Pt/C and most non-precious ORR electrocatalysts. Insights from this work promote rational design of efficient catalysts.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Physical

An In-Depth Theoretical Exploration of Influences of Non-Metal-Elements Doping on the ORR Performance of Co-gN4

Cehuang Fu et al.

Summary: The study systematically investigates the influence of non-metal elements doping (B, N, Si, P, S) on the ORR catalytic activity of Co-gN(4) based on density functional theory. It is found that different doping elements have different effects on the ORR process, with P and S doping showing a promotion effect on the ORR activity.

CHEMCATCHEM (2021)

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Article Engineering, Environmental

Highly dispersed Cu atoms in MOF-derived N-doped porous carbon inducing Pt loads for superior oxygen reduction and hydrogen evolution

Chao Wang et al.

Summary: This study focuses on preparing catalysts with high activity and stability for ORR and HER by loading copper-platinum alloy nanoparticles on N-doped porous carbon. The C-ZIF-CuPt catalyst exhibits better ORR and HER bifunctional catalytic performance than commercial Pt/C. Cu doping increases the d-band center of Pt, reducing the overpotential and activation energy barrier, improving ORR and HER catalysis. Platinum alloying effectively enhances catalyst performance.

CHEMICAL ENGINEERING JOURNAL (2021)

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Review Chemistry, Physical

Coordination Engineering of Single-Atom Catalysts for the Oxygen Reduction Reaction: A Review

Jincheng Zhang et al.

Summary: The article discusses the importance of single-atom catalysts in promoting future renewable energy supplies and sustainable environments, with a particular emphasis on the excellent catalytic performance of transition-metal SACs in the field of oxygen reduction reactions. Regulating the coordination environments of SACs poses a challenging problem.

ADVANCED ENERGY MATERIALS (2021)

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Article Energy & Fuels

Catalytic mechanism of oxygen reduction on two types of CoN4-graphene: A density functional study

Jing Zhang et al.

Summary: Two types of CoN4-graphene catalysts were studied, with CoN4-G(A) showing higher catalytic activity and CoN4-G(B) showing higher 4-electrons selectivity. Both models exhibited ORR activity, with CoN4-G(A) allowing 2-electrons and 4-electrons pathways, while CoN4-G(B) favoring only the 4-electrons ORR pathway.

INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2021)

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Article Chemistry, Physical

Enhancing filter cake removal by engineering parameter optimization for clean development of fossil hydrogen energy: A numerical simulation

Zhaochuan Li et al.

Summary: Long-term zonal isolation is crucial for fossil hydrogen energy development, with efficient filter cake removal as the key to successful zonal isolation. This study used engineering parameter optimization to enhance filter cake removal, identifying borehole enlargement rate as the most sensitive parameter. Two empirical models were developed to predict removal efficiency for cleaner and more environmentally-friendly production of fossil hydrogen energy.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Chemistry, Physical

Insight into the performance and stability of N-doped Ordered Mesoporous Carbon Hollow Spheres for the ORR: Influence of the nitrogen species on their catalytic activity after ADT

J. C. Carrillo-Rodriguez et al.

Summary: Novel N-doped ordered mesoporous carbon hollow spheres (N-OMCHS) were successfully synthesized using two different nitrogen sources, N1-OMCHS and N2-OMCHS, and their catalytic activity towards the Oxygen Reduction Reaction (ORR) in alkaline media was evaluated. N2-OMCHS showed the best performance for the ORR, but surprisingly, N1-OMCHS improved in performance after Accelerated Degradation Test (ADT) and exhibited better stability compared to N2-OMCHS. X-ray photoelectron spectroscopy results indicated chemical modifications of nitrogen species on the surface, leading to enhanced ORR performance. Therefore, N-OMCHS are considered as potential non-platinum electrocatalysts for Anion Exchange Membrane Fuel Cells (AEMFC) cathode applications.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Chemistry, Multidisciplinary

Ultrastable FeCo Bifunctional Electrocatalyst on Se-Doped CNTs for Liquid and Flexible All-Solid-State Rechargeable Zn-Air Batteries

Hongwei Zhang et al.

Summary: In this study, an ultrastable FeCo bifunctional oxygen electrocatalyst on Se-doped CNTs was synthesized, showing excellent oxygen reduction and oxygen evolution reaction activities, surpassing commercial catalysts. The FeCo/Se-CNT catalyst demonstrated extraordinary stability and superior performance in rechargeable Zn-air batteries.

NANO LETTERS (2021)

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Article Multidisciplinary Sciences

Substrate strain tunes operando geometric distortion and oxygen reduction activity of CuN2C2 single-atom sites

Guokang Han et al.

Summary: The rational design of single-atom catalysts is challenging. This work reveals a substrate-strain tuned geometry distortion of CuN2C2 single-atom site, which greatly boosts oxygen reduction activity by facilitating electron transfer to adsorbed O.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Multidisciplinary

MIL-101-Derived Mesoporous Carbon Supporting Highly Exposed Fe Single-Atom Sites as Efficient Oxygen Reduction Reaction Catalysts

Xiaoying Xie et al.

Summary: Fe single-atom catalysts with atomic FeNx active sites show great promise as alternatives to platinum-based catalysts for the oxygen reduction reaction. This study utilized a mesoporous MOF NH2-MIL-101(Al) as a precursor to prepare a series of N-doped carbon supports with well-defined mesoporous structure at different pyrolysis temperatures. The resulting Fe SAC-MIL101-T catalysts showed outstanding ORR activity in alkaline media and excellent performance in zinc-air batteries.

ADVANCED MATERIALS (2021)

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Article Chemistry, Physical

Stone-Wales defect-rich carbon-supported dual-metal single atom sites for Zn-air batteries

Kishwar Khan et al.

Summary: The study shows that the NiFe-DG catalyst exhibits high catalytic activity for both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), comparable to commercial Pt/C, while demonstrating superior stability.

NANO ENERGY (2021)

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Article Multidisciplinary Sciences

Regulating Fe-spin state by atomically dispersed Mn-N in Fe-N-C catalysts with high oxygen reduction activity

Gege Yang et al.

Summary: The research uncovered the mechanism of the oxygen reduction reaction on dual-metal atomically dispersed Fe,Mn/N-C catalyst, demonstrating its excellent performance and durability in fuel cells and metal-air batteries.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Multidisciplinary

Anchoring Single Copper Atoms to Microporous Carbon Spheres as High-Performance Electrocatalyst for Oxygen Reduction Reaction

Lingbo Zong et al.

Summary: This study reports a method of anchoring transition metal single atoms on carbon support by creating defects and vacancies, resulting in electrocatalysts with superior oxygen reduction reaction catalytic activity. Among them, Cu-SAs@N-CNS exhibits excellent bifunctional activity for oxygen reduction and oxygen evolution reactions, and is successfully used as an efficient air cathode material for zinc-air batteries; the study suggests that N-terminated vacancies on graphitic carbons are the preferred sites for anchoring Cu single atoms.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Decarboxylation-Induced Defects in MOF-Derived Single Cobalt Atom@Carbon Electrocatalysts for Efficient Oxygen Reduction

Shuai Yuan et al.

Summary: The study focuses on developing transition metal single-atom catalysts (SACs) for the oxygen reduction reaction (ORR) by using a decarboxylation-induced defects strategy to enhance their intrinsic activity. A gas-transport method was used to produce defective Co SACs (Co@DMOF) from carboxylate/amide mixed-linker MOF (DMOF), showing improved ORR activity compared to Co@ZIF-8-900.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Multidisciplinary

P-Block Atomically Dispersed Antimony Catalyst for Highly Efficient Oxygen Reduction Reaction

Tongzhou Wang et al.

Summary: In this study, a p-block antimony single-atom catalyst with Sb-N-4 configuration was successfully synthesized for efficient catalysis of the oxygen reduction reaction (ORR). The Sb SAC exhibited superior ORR activity and stability compared to most transition-metal based SACs and commercial Pt/C. Experimental and theoretical calculations revealed that the active catalytic sites were positively charged Sb-N-4 single-metal sites, indicating promising potential for the design of highly active main-group-metal SACs.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Multidisciplinary

Intrinsic ORR Activity Enhancement of Pt Atomic Sites by Engineering the d-Band Center via Local Coordination Tuning

Xiaofeng Zhu et al.

Summary: A novel carbon-based catalyst PtNPC with low Pt content but high ORR activity and stability has been developed in this research. Analysis suggests that the success of PtNPC lies in altering the d-band center of Pt atoms to enhance activity and predominantly promote the 4-electron reaction pathway.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Physical

Engineering Pt and Fe dual-metal single atoms anchored on nitrogen-doped carbon with high activity and durability towards oxygen reduction reaction for zinc-air battery

Xiongwei Zhong et al.

Summary: A novel strategy for encapsulating Pt species into Fe-doped zeolite imidazolate framework to obtain PtFeNC catalyst was proposed in this study. The catalyst exhibited excellent performance in zinc-air battery, showing potential for practical applications in energy storage.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

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Article Chemistry, Physical

An efficient dual-metal single-atom catalyst for bifunctional catalysis in zinc-air batteries

Yiou Ma et al.

Summary: By using graphene oxide to anchor metal ions in nitrogen-doped graphene, a dual-metal-site bifunctional catalyst with atomically dispersed FeN4 and NiN4 has been developed, showing highly efficient bifunctional catalytic activity.

CARBON (2021)

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Article Chemistry, Physical

Environmental and energy life cycle analyses of passenger vehicle systems using fossil fuel-derived hydrogen

Shunichi Hienuki et al.

Summary: This study analyzes and compares the energy consumption and GHG emissions of hydrogen and gasoline energy systems over their entire life cycle, finding that hydrogen energy system performs better. The development of hydrogen energy may have positive impacts on future energy systems.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Chemistry, Physical

Chemical vapour deposition of Fe-N-C oxygen reduction catalysts with full utilization of dense Fe-N4 sites

Li Jiao et al.

Summary: Replacing scarce and expensive platinum with metal-nitrogen-carbon (M-N-C) catalysts for the oxygen reduction reaction in proton exchange membrane fuel cells has been impeded by the low active site density and site utilization of M-N-C. These limitations have now been overcome by implementing trans-metalation of Zn-N-4 sites into Fe-N-4 sites.

NATURE MATERIALS (2021)

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Review Chemistry, Multidisciplinary

Dual-atom catalysts: controllable synthesis and electrocatalytic applications

Shengbo Zhang et al.

Summary: This review highlights the synthesis, reactivities, and challenges of dual-atom catalysts (DACs) in electrocatalytic applications. DACs show higher metal loading, more versatile active sites, and unique reactivity compared to single-atom catalysts (SACs), making them increasingly attractive. Despite the controlled synthesis and applications of DACs remaining challenging, their potential in energy storage and environmental remediation is promising.

SCIENCE CHINA-CHEMISTRY (2021)

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Article Chemistry, Multidisciplinary

Constructing Precise Coordination of Nickel Active Sites on Hierarchical Porous Carbon Framework for Superior Oxygen Reduction

Shuai Zhang et al.

Summary: This study successfully constructed a single-atom catalyst with NiN4C10 coordination site, demonstrating excellent ORR activity and stability in alkaline solution, providing important references and insights for the future development in the field of electrocatalysis.

SMALL (2021)

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Article Chemistry, Physical

Identification of the Evolving Dynamics of Coordination-Unsaturated Iron Atomic Active Sites under Reaction Conditions

Wanlin Zhou et al.

Summary: Understanding the evolving dynamics of the catalytic active center is crucial for the development of efficient catalysts. Through synchrotron-based techniques, this study revealed the highly active Fe single-site catalyst structure and its excellent catalytic performance in the oxygen reduction reaction.

ACS ENERGY LETTERS (2021)

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Article Chemistry, Physical

Advances and perspectives of ZIFs-based materials for electrochemical energy storage: Design of synthesis and crystal structure, evolution of mechanisms and electrochemical performance

Huayu Wang et al.

Summary: The design and preparation of electrode materials play a crucial role in enhancing the performance of energy storage devices. Zeolitic imidazolate frameworks (ZIFs) and their derivatives are highly regarded for their high porosity, controllable crystal structures, and tunable chemical compositions, making them promising materials for various energy storage applications such as supercapacitors and batteries.

ENERGY STORAGE MATERIALS (2021)

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Review Chemistry, Physical

Recent advances in the design of a high performance metal-nitrogen-carbon catalyst for the oxygen reduction reaction

Cheng-Wei Ye et al.

Summary: Developing efficient cathode oxygen reduction reaction (ORR) catalysts is crucial for the widespread application of fuel cells. Recent studies have made significant progress in designing high-performance M-N-C catalysts through strategies like increasing active site density, improving intrinsic activity, facilitating mass transfer, and avoiding linear scaling relationship.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Physical

Highly exposed discrete Co atoms anchored in ultrathin porous N, P-codoped carbon nanosheets for efficient oxygen electrocatalysis and rechargeable aqueous/solid-state Zn-air batteries

Xinghuan Liu et al.

Summary: This study successfully prepared single Co atoms anchored in ultrathin N, P-codoped porous carbon nanosheets as single atom catalysts, showing excellent performance in oxygen electrocatalysis and rechargeable Zn-air batteries.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Review Chemistry, Physical

Carbon-based single atom catalysts for tailoring the ORR pathway: a concise review

Jinwen Hu et al.

Summary: Carbon-based single-atom catalysts (C-SACs) have shown significant advantages in the oxygen reduction reaction (ORR) through structure modulation and dual active site synergistic catalysis to enhance catalytic selectivity and activity. Future directions include overcoming challenges in C-SACs for the ORR and promoting their industrialization.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Multidisciplinary

Topological defect-containing Fe/N co-doped mesoporous carbon nanosheets as novel electrocatalysts for the oxygen reduction reaction and Zn-air batteries

Junjie Ding et al.

Summary: Developing effective electrocatalysts for the oxygen reduction reaction is crucial for clean and renewable energy technologies. This study synthesized topological defect-containing Fe/N co-doped mesoporous carbon nanosheets, which showed superior ORR activity, methanol tolerance ability, and stability under alkaline conditions. As an air cathode for Zn-air batteries, the catalyst exhibited higher peak power density and specific capacity compared to a Pt/C-based Zn-air battery. Additionally, density functional theory calculation confirmed the positive effect of topological defects on the oxygen reduction activity.

NANOSCALE (2021)

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Article Chemistry, Physical

Unravelling the origin of bifunctional OER/ORR activity for single-atom catalysts supported on C2N by DFT and machine learning

Yiran Ying et al.

Summary: This study showcases the promising bifunctional OER/ORR catalytic performance of single-atom catalysts supported on the C2N monolayer, with Rh@C2N, Au, and Pd@C2N demonstrating superior activity. The origin of this catalytic activity is revealed through DFT calculations and ML modelling, shedding light on the underlying mechanisms and element-specific activity.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Review Materials Science, Multidisciplinary

Materials, technological status, and fundamentals of PEM fuel cells - A review

Yun Wang et al.

MATERIALS TODAY (2020)

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Article Nanoscience & Nanotechnology

Encapsulating Pt Nanoparticles inside a Derived Two-Dimensional Metal-Organic Frameworks for the Enhancement of Catalytic Activity

Wei Wu et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Review Chemistry, Multidisciplinary

Well-Defined Materials for Heterogeneous Catalysis: From Nanoparticles to Isolated Single-Atom Sites

Zhi Li et al.

CHEMICAL REVIEWS (2020)

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Article Chemistry, Multidisciplinary

Single Au Atoms Anchored on Amino-Group-Enriched Graphitic Carbon Nitride for Photocatalytic CO2 Reduction

Yali Yang et al.

CHEMSUSCHEM (2020)

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Article Chemistry, Physical

Electrospun single iron atoms dispersed carbon nanofibers as high performance electrocatalysts toward oxygen reduction reaction in acid and alkaline media

Liang Dong et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2020)

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Article Chemistry, Multidisciplinary

Boosting Oxygen Reduction of Single Iron Active Sites via Geometric and Electronic Engineering: Nitrogen and Phosphorus Dual Coordination

Kai Yuan et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

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Article Materials Science, Multidisciplinary

Supramolecular confinement of single Cu atoms in hydrogel frameworks for oxygen reduction electrocatalysis with high atom utilization

Panpan Li et al.

MATERIALS TODAY (2020)

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Article Chemistry, Physical

Atomic-level tuning of Co-N-C catalyst for high-performance electrochemical H2O2 production

Euiyeon Jung et al.

NATURE MATERIALS (2020)

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Article Multidisciplinary Sciences

Turning main-group element magnesium into a highly active electrocatalyst for oxygen reduction reaction

Shuai Liu et al.

NATURE COMMUNICATIONS (2020)

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Article Nanoscience & Nanotechnology

High Durability of Pt3Sn/Graphene Electrocatalysts toward the Oxygen Reduction Reaction Studied with In Situ QEXAFS

Bing-Jian Su et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Article Chemistry, Multidisciplinary

Single-Atom Iron Catalysts on Overhang-Eave Carbon Cages for High-Performance Oxygen Reduction Reaction

Chun-Chao Hou et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Chemistry, Multidisciplinary

Bridge Bonded Oxygen Ligands between Approximated FeN(4)Sites Confer Catalysts with High ORR Performance

Liyuan Gong et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Engineering, Environmental

Core-double shell templated Fe/Co anchored carbon nanospheres for oxygen reduction

Lingfeng Li et al.

CHEMICAL ENGINEERING JOURNAL (2020)

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Review Chemistry, Multidisciplinary

Chemical Synthesis of Single Atomic Site Catalysts

Shufang Ji et al.

CHEMICAL REVIEWS (2020)

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Article Chemistry, Multidisciplinary

Atomically Dispersed Mn within Carbon Frameworks as High-Performance Oxygen Reduction Electrocatalysts for Zinc-Air Battery

Zhiyu Lin et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2020)

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Article Chemistry, Multidisciplinary

Fuel Cell Electric Vehicle as a Power Plant: Techno-Economic Scenario Analysis of a Renewable Integrated Transportation and Energy System for Smart Cities in Two Climates

Vincent Oldenbroek et al.

APPLIED SCIENCES-BASEL (2020)

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Article Chemistry, Multidisciplinary

Ionic Exchange of Metal-Organic Frameworks for Constructing Unsaturated Copper Single-Atom Catalysts for Boosting Oxygen Reduction Reaction

Shenghua Ma et al.

SMALL (2020)

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Article Chemistry, Physical

Active and Stable Pt-Ni Alloy Octahedra Catalyst for Oxygen Reduction via Near-Surface Atomical Engineering

Fanpeng Kong et al.

ACS CATALYSIS (2020)

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Review Chemistry, Physical

Modulating the local coordination environment of single-atom catalysts for enhanced catalytic performance

Xinyuan Li et al.

NANO RESEARCH (2020)

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Article Chemistry, Multidisciplinary

Gram-Scale Synthesis of High-Loading Single-Atomic-Site Fe Catalysts for Effective Epoxidation of Styrene

Yu Xiong et al.

ADVANCED MATERIALS (2020)

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Review Chemistry, Multidisciplinary

Single-Atom Alloy Catalysis

Ryan T. Hannagan et al.

CHEMICAL REVIEWS (2020)

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Article Chemistry, Analytical

High voltage gain in photo-assisted charging of a metal-air battery

Tatiana Santos Andrade et al.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY (2020)

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Article Chemistry, Multidisciplinary

Dynamic Evolution of Solid-Liquid Electrochemical Interfaces over Single-Atom Active Sites

Hui Su et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

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Article Chemistry, Multidisciplinary

Engineering Isolated Mn-N2C2 Atomic Interface Sites for Efficient Bifunctional Oxygen Reduction and Evolution Reaction

Huishan Shang et al.

NANO LETTERS (2020)

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Article Chemistry, Multidisciplinary

Engineering of Coordination Environment and Multiscale Structure in Single-Site Copper Catalyst for Superior Electrocatalytic Oxygen Reduction

Tingting Sun et al.

NANO LETTERS (2020)

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Article Multidisciplinary Sciences

Engineering unsymmetrically coordinated Cu-S1N3 single atom sites with enhanced oxygen reduction activity

Huishan Shang et al.

NATURE COMMUNICATIONS (2020)

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Article Chemistry, Multidisciplinary

Engineering the Low Coordinated Pt Single Atom to Achieve the Superior Electrocatalytic Performance toward Oxygen Reduction

Zhongxin Song et al.

SMALL (2020)

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Article Materials Science, Multidisciplinary

Alkaline earth metal based single atom catalyst for the highly durable oxygen reduction reaction

Omeshwari Yadorao Bisen et al.

APPLIED MATERIALS TODAY (2020)

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Review Chemistry, Physical

Recent Advances in the Development of Single-Atom Catalysts for Oxygen Electrocatalysis and Zinc-Air Batteries

Lishan Peng et al.

ADVANCED ENERGY MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Preferentially Engineering FeN4 Edge Sites onto Graphitic Nanosheets for Highly Active and Durable Oxygen Electrocatalysis in Rechargeable Zn-Air Batteries

Meiling Xiao et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Physical

Exploring the oxygen electrode bi-functional activity of Ni-N-C-doped graphene systems with N, C co-ordination and OH ligand effects

Zhao Liang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

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Review Chemistry, Multidisciplinary

Electronic Metal-Support Interaction of Single-Atom Catalysts and Applications in Electrocatalysis

Jiarui Yang et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Cobalt decorated nitrogen-doped carbon bowls as efficient electrocatalysts for the oxygen reduction reaction

Haobin Zhong et al.

CHEMICAL COMMUNICATIONS (2020)

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Article Chemistry, Multidisciplinary

Engineering a metal-organic framework derived Mn-N4-CxSyatomic interface for highly efficient oxygen reduction reaction

Huishan Shang et al.

CHEMICAL SCIENCE (2020)

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Article Chemistry, Multidisciplinary

High-purity pyrrole-type FeN4 sites as a superior oxygen reduction electrocatalyst

Nan Zhang et al.

ENERGY & ENVIRONMENTAL SCIENCE (2020)

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Article Multidisciplinary Sciences

DFT analysis elementary reaction steps of catalytic activity for ORR on metal-, nitrogen- co-doped graphite embedded structure

Yi Xiao et al.

SN APPLIED SCIENCES (2020)

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Review Chemistry, Multidisciplinary

Atomically dispersed metal-nitrogen-carbon catalysts for fuel cells: advances in catalyst design, electrode performance, and durability improvement

Yanghua He et al.

CHEMICAL SOCIETY REVIEWS (2020)

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Article Chemistry, Multidisciplinary

Generation of Nanoparticle, Atomic-Cluster, and Single-Atom Cobalt Catalysts from Zeolitic Imidazole Frameworks by Spatial Isolation and Their Use in Zinc-Air Batteries

Xiaopeng Han et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Article Chemistry, Multidisciplinary

Ultrahigh-Loading Zinc Single-Atom Catalyst for Highly Efficient Oxygen Reduction in Both Acidic and Alkaline Media

Jia Li et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Article Chemistry, Multidisciplinary

Versatile Strategy for Tuning ORR Activity of a Single Fe-N4 Site by Controlling Electron-Withdrawing/Donating Properties of a Carbon Plane

Yeongdong Mun et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

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Review Chemistry, Physical

Metal organic frameworks derived single atom catalysts for electrocatalytic energy conversion

Tingting Sun et al.

NANO RESEARCH (2019)

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Article Chemistry, Physical

In Situ/Operando Techniques for Characterization of Single-Atom Catalysts

Xuning Li et al.

ACS CATALYSIS (2019)

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Article Chemistry, Multidisciplinary

Electrosynthesis of Hydrogen Peroxide Synergistically Catalyzed by Atomic Co-Nx-C Sites and Oxygen Functional Groups in Noble-Metal-Free Electrocatalysts

Bo-Quan Li et al.

ADVANCED MATERIALS (2019)

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Article Chemistry, Multidisciplinary

A Single-Atom Iridium Heterogeneous Catalyst in Oxygen Reduction Reaction

Meiling Xiao et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Article Chemistry, Multidisciplinary

Single Fe Atom on Hierarchically Porous S, N-Codoped Nanocarbon Derived from Porphyra Enable Boosted Oxygen Catalysis for Rechargeable Zn-Air Batteries

Jiting Zhang et al.

SMALL (2019)

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Article Chemistry, Physical

High-performance single atom bifunctional oxygen catalysts derived from ZIF-67 superstructures

Xueping Sun et al.

NANO ENERGY (2019)

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Review Chemistry, Multidisciplinary

Review of Metal Catalysts for Oxygen Reduction Reaction: From Nanoscale Engineering to Atomic Design

Xiaoqian Wang et al.

CHEM (2019)

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Article Chemistry, Multidisciplinary

Single-Atom Cr-N4 Sites Designed for Durable Oxygen Reduction Catalysis in Acid Media

Ergui Luo et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Article Chemistry, Physical

Rational design of porous structures via molecular layer deposition as an effective stabilizer for enhancing Pt ORR performance

Lei Zhang et al.

NANO ENERGY (2019)

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Article Chemistry, Physical

Coordination-controlled single-atom tungsten as a non-3d-metal oxygen reduction reaction electrocatalyst with ultrahigh mass activity

Zhigang Chen et al.

NANO ENERGY (2019)

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Article Electrochemistry

Palladium Single-Atom Catalysts Supported on C@C3N4 for Electrochemical Reactions

Hee-Eun Kim et al.

CHEMELECTROCHEM (2019)

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Article Chemistry, Physical

Nanocrystal supracrystal-derived atomically dispersed Mn-Fe catalysts with enhanced oxygen reduction activity

Biwei Wang et al.

NANO ENERGY (2019)

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Article Chemistry, Physical

Atomically dispersed manganese-based catalysts for efficient catalysis of oxygen reduction reaction

Lu Bai et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2019)

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Article Chemistry, Physical

Activity Origin and Multifunctionality of Pt-Based Intermetallic Nanostructures for Efficient Electrocatalysis

Ho Young Kim et al.

ACS CATALYSIS (2019)

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Article Chemistry, Multidisciplinary

An Isolated Zinc-Cobalt Atomic Pair for Highly Active and Durable Oxygen Reduction

Ziyang Lu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Article Chemistry, Multidisciplinary

B-Doped MnN4-G Nanosheets as Bifunctional Electrocatalysts for Both Oxygen Reduction and Oxygen Evolution Reactions

Wei Zhang et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2019)

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Article Chemistry, Physical

The construction of porous graphene tri-doped with B, N and Co for enhanced oxygen reduction reaction

Xiao Xu et al.

CARBON (2019)

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Article Chemistry, Multidisciplinary

Tuning the Coordination Environment in Single-Atom Catalysts to Achieve Highly Efficient Oxygen Reduction Reactions

Jinqiang Zhang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

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Article Multidisciplinary Sciences

Non defect-stabilized thermally stable single-atom catalyst

Rui Lang et al.

NATURE COMMUNICATIONS (2019)

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Article Multidisciplinary Sciences

Over 56.55% Faradaic efficiency of ambient ammonia synthesis enabled by positively shifting the reaction potential

Mengfan Wang et al.

NATURE COMMUNICATIONS (2019)

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Article Chemistry, Physical

Aluminum and Nitrogen Codoped Graphene: Highly Active and Durable Electrocatalyst for Oxygen Reduction Reaction

Yong Qin et al.

ACS CATALYSIS (2019)

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Article Chemistry, Physical

Distinguished Zn, Co-Nx-C-Sy active sites confined in dentric carbon for highly efficient oxygen reduction reaction and flexible Zn-air Batteries

Dexin Liu et al.

NANO ENERGY (2019)

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Review Chemistry, Multidisciplinary

Iron-Free Cathode Catalysts for Proton-Exchange-Membrane Fuel Cells: Cobalt Catalysts and the Peroxide Mitigation Approach

Xiao Xia Wang et al.

ADVANCED MATERIALS (2019)

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Article Chemistry, Multidisciplinary

Fabricating Single-Atom Catalysts from Chelating Metal in Open Frameworks

Yichao Lin et al.

ADVANCED MATERIALS (2019)

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Article Chemistry, Multidisciplinary

Metal and Nonmetal Codoped 3D Nanoporous Graphene for Efficient Bifunctional Electrocatalysis and Rechargeable Zn-Air Batteries

Hua-Jun Qiu et al.

ADVANCED MATERIALS (2019)

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Article Chemistry, Physical

Fe-N-C electrocatalyst with dense active sites and efficient mass transport for high-performance proton exchange membrane fuel cells

Xin Wan et al.

NATURE CATALYSIS (2019)

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Article Chemistry, Physical

Systematic exploration of N,C coordination effects on the ORR performance of Mn-Nx doped graphene catalysts based on DFT calculations

Guangqi Zhu et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2019)

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Article Chemistry, Physical

Modulating the d-band center of boron doped single-atom sites to boost the oxygen reduction reaction

He Sun et al.

JOURNAL OF MATERIALS CHEMISTRY A (2019)

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Article Chemistry, Multidisciplinary

Carbon Nanosheets Containing Discrete Co-N-x-B-y-C Active Sites for Efficient Oxygen Electrocatalysis and Rechargeable Zn-Air Batteries

Yingying Guo et al.

ACS NANO (2018)

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Article Chemistry, Multidisciplinary

O-, N-Atoms-Coordinated Mn Cofactors within a Graphene Framework as Bioinspired Oxygen Reduction Reaction Electrocatalysts

Yang Yang et al.

ADVANCED MATERIALS (2018)

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Article Chemistry, Multidisciplinary

Fe Isolated Single Atoms on S, N Codoped Carbon by Copolymer Pyrolysis Strategy for Highly Efficient Oxygen Reduction Reaction

Qiheng Li et al.

ADVANCED MATERIALS (2018)

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Article Chemistry, Multidisciplinary

A Durable Nickel Single-Atom Catalyst for Hydrogenation Reactions and Cellulose Valorization under Harsh Conditions

Wengang Liu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2018)

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Review Chemistry, Multidisciplinary

Emerging Two-Dimensional Nanomaterials for Electrocatalysis

Huanyu Jin et al.

CHEMICAL REVIEWS (2018)

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Review Chemistry, Multidisciplinary

Oxygen Reduction by Homogeneous Molecular Catalysts and Electrocatalysts

Michael L. Pegis et al.

CHEMICAL REVIEWS (2018)

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Review Chemistry, Multidisciplinary

Understanding Catalytic Activity Trends in the Oxygen Reduction Reaction

Ambarish Kulkarni et al.

CHEMICAL REVIEWS (2018)

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Article Chemistry, Multidisciplinary

Post-formation Copper-Nitrogen Species on Carbon Black: Their Chemical Structures and Active Sites for Oxygen Reduction Reaction

Xin Xie et al.

CHEMISTRY-A EUROPEAN JOURNAL (2018)

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Article Chemistry, Multidisciplinary

Boosting oxygen reduction catalysis with abundant copper single atom active sites

Feng Li et al.

ENERGY & ENVIRONMENTAL SCIENCE (2018)

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Article Multidisciplinary Sciences

Unveiling the high-activity origin of single-atom iron catalysts for oxygen reduction reaction

Liu Yang et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2018)

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Article Chemistry, Physical

Microporous Framework Induced Synthesis of Single-Atom Dispersed Fe-N-C Acidic ORR Catalyst and Its in Situ Reduced Fe-N4 Active Site Identification Revealed by X-ray Absorption Spectroscopy

Meiling Xiao et al.

ACS CATALYSIS (2018)

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Article Chemistry, Physical

Designing highly efficient dual-metal single-atom electrocatalysts for the oxygen reduction reaction inspired by biological enzyme systems

Shipeng Gong et al.

JOURNAL OF MATERIALS CHEMISTRY A (2018)

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Article Chemistry, Physical

Single-atom cobalt electrocatalysts for foldable solid-state Zn-air battery

Liu Yang et al.

NANO ENERGY (2018)

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Review Chemistry, Multidisciplinary

Heterogeneous single-atom catalysis

Aiqin Wang et al.

NATURE REVIEWS CHEMISTRY (2018)

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Article Chemistry, Multidisciplinary

Highly Stable Single-Atom Catalyst with Ionic Pd Active Sites Supported on N-Doped Carbon Nanotubes for Formic Acid Decomposition

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Edge-Site Engineering of Atomically Dispersed Fe-N4 by Selective C-N Bond Cleavage for Enhanced Oxygen Reduction Reaction Activities

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Porphyrin-like Fe-N4 sites with sulfur adjustment on hierarchical porous carbon for different rate-determining steps in oxygen reduction reaction

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Photochemical Solid-Phase Synthesis of Platinum Single Atoms on Nitrogen-Doped Carbon with High Loading as Bifunctional Catalysts for Hydrogen Evolution and Oxygen Reduction Reactions

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Carbon dioxide electroreduction over imidazolate ligands coordinated with Zn(II) center in ZIFs

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Graphdiyne-Supported Single-Atom-Sized Fe Catalysts for the Oxygen Reduction Reaction: DFT Predictions and Experimental Validations

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Atomically dispersed manganese catalysts for oxygen reduction in proton-exchange membrane fuel cells

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Single-Atom Catalysts: Synthetic Strategies and Electrochemical Applications

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Atomically Dispersed Iron-Nitrogen Species as Electrocatalysts for Bifunctional Oxygen Evolution and Reduction Reactions

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Active sites engineering leads to exceptional ORR and OER bifunctionality in P,N Co-doped graphene frameworks

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Role of Local Carbon Structure Surrounding FeN4 Sites in Boosting the Catalytic Activity for Oxygen Reduction

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Design of N-Coordinated Dual-Metal Sites: A Stable and Active Pt-Free Catalyst for Acidic Oxygen Reduction Reaction

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Catalytic Activity for Oxygen Reduction Reaction on CoN2 Embedded Graphene: A Density Functional Theory Study

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N-doped carbon-stabilized PtCo nanoparticles derived from Pt@ZIF-67: Highly active and durable catalysts for oxygen reduction reaction

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High performance platinum single atom electrocatalyst for oxygen reduction reaction

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Single Cobalt Atom and N Codoped Carbon Nanofibers as Highly Durable Electrocatalyst for Oxygen Reduction Reaction

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Meta-Organic-Framework-Derived Fe-N/C Electrocatalyst with Five-Coordinated Fe-Nx), Sites for Advanced Oxygen Reduction in Acid Media

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Metal-Organic Framework-Derived Non-Precious Metal Nanocatalysts for Oxygen Reduction Reaction

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Atomically FeN2 moieties dispersed on mesoporous carbon: A new atomic catalyst for efficient oxygen reduction catalysis

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Potential-Cycling Synthesis of Single Platinum Atoms for Efficient Hydrogen Evolution in Neutral Media

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Metal-Organic Framework-Derived FeCo-N-Doped Hollow Porous Carbon Nanocubes for Electrocatalysis in Acidic and Alkaline Media

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Zn Single Atom Catalyst for Highly Efficient Oxygen Reduction Reaction

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Nitrogen and Iron-Codoped Carbon Hollow Nanotubules as High-Performance Catalysts toward Oxygen Reduction Reaction: A Combined Experimental and Theoretical Study

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Single-Atom Catalyst of Platinum Supported on Titanium Nitride for Selective Electrochemical Reactions

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Earth-Abundant Nanomaterials for Oxygen Reduction

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Directed Growth of Metal-Organic Frameworks and Their Derived Carbon-Based Network for Efficient Electrocatalytic Oxygen Reduction

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Reactivity Descriptors for the Activity of Molecular MN4 Catalysts for the Oxygen Reduction Reaction

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Nitrogen, Phosphorus, and Fluorine Tri-doped Graphene as a Multifunctional Catalyst for Self-Powered Electrochemical Water Splitting

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Single Cobalt Atoms with Precise N-Coordination as Superior Oxygen Reduction Reaction Catalysts

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Dual-site oxygen reduction reaction mechanism on CoN4 and CoN2 embedded graphene: Theoretical insights

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Highly doped and exposed Cu(I)-N active sites within graphene towards efficient oxygen reduction for zinc-air batteries

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Recent Progress in Synthesis, Characterization and Evaluation of Non-Precious Metal Catalysts for the Oxygen Reduction Reaction

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Oxygen Reduction Reaction Mechanisms on Al-Doped X-Graphene (X = N, P, and S) Catalysts in Acidic Medium: A Comparative DFT Study

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Identification of catalytic sites for oxygen reduction and oxygen evolution in N-doped graphene materials: Development of highly efficient metal-free bifunctional electrocatalyst

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Hydrothermal Synthesis of Boron and Nitrogen Codoped Hollow Graphene Microspheres with Enhanced Electrocatalytic Activity for Oxygen Reduction Reaction

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From the Sabatier principle to a predictive theory of transition-metal heterogeneous catalysis

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A Review of Graphene-Based Nanostructural Materials for Both Catalyst Supports and Metal-Free Catalysts in PEM Fuel Cell Oxygen Reduction Reactions

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Catalytic activity of Co-N-x/C electrocatalysts for oxygen reduction reaction: a density functional theory study

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Anion-Exchange Membrane Fuel Cells: Dual-Site Mechanism of Oxygen Reduction Reaction in Alkaline Media on Cobalt-Polypyrrole Electrocatalysts

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Oxygen Reduction Activity of a Copper Complex of 3,5-Diamino-1,2,4-triazole Supported on Carbon Black

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Unraveling Oxygen Reduction Reaction Mechanisms on Carbon-Supported Fe-Phthalocyanine and Co-Phthalocyanine Catalysts in Alkaline Solutions

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Density functional theory study of transitional metal macrocyclic complexes' dioxygen-binding abilities and their catalytic activities toward oxygen reduction reaction

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Exceptional chemical and thermal stability of zeolitic imidazolate frameworks

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Oxygen reduction by Fe-based catalysts in PEM fuel cell conditions:: Activity and selectivity of the catalysts obtained with two Fe precursors and various carbon supports

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Modifying carbon particles with polypyrrole for adsorption of cobalt ions as electrocatatytic site for oxygen reduction

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