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Article
Chemistry, Multidisciplinary
Tingting Cui et al.
Summary: The novel dual single-atom catalyst FeMn-DSAC exhibits remarkable bifunctional activities for ORR and OER, enabling efficient operation of the ZAB at ultra-low temperature of -40 degrees C with peak power density of 30 mW cm(-2) and up to 86% specific capacity retention compared to room temperature.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Hongguan Li et al.
Summary: By designing the catalyst Fe/Zn-N-C based on theoretical screening, a unique half-metallic electronic structure is achieved, resulting in enhanced O-2 capture and bonding. The catalyst exhibits impressive ORR activities and durability in both acidic and alkaline media.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yi Jiang et al.
Summary: This study proposes a linker compensation strategy to enhance the catalytic performance of metal-organic frameworks. By compensating the metal nodes, the performance of zinc-air batteries can be improved, resulting in higher current density and more stable voltage gap.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Jinling Wang et al.
Summary: By simple cation intercalation, the catalytic pathway of iron-based oxidation systems can be altered, leading to enhanced reaction kinetics. This structural regulation technique is of great significance for sustainable pollutant removal technologies.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Qinglin Yuan et al.
Summary: Se-based nanoalloys are a promising class of metal chalcogenides with tunable crystalline and electronic structures, showing great potential in renewable energy conversion and utilization. By controlling the alloying component, a flexible control over the oxygen reduction reaction pathway has been achieved, and an optimized scaling relationship between oxygenated ORR intermediates has been discovered on certain nanocrystals.
Article
Chemistry, Physical
Kuang-Min Zhao et al.
Summary: This study investigates the effect of axial ligands on the ORR catalytic activity of Fe-N-4 by using poly(iron phthalocyanine) as a model electrocatalyst. It reveals that the ORR activity of Fe-N-4 sites can be regulated by tuning the field strength of the axial ligands, and it is related to the energy level gap between OH p(x)p(y) and Fe 3dz2.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Subhajit Sarkar et al.
Summary: In this study, a bifunctional electrocatalyst with target-specific Fe-N-4/C and Co-N-4/C isolated active sites was developed, showing a symbiotic effect on overall oxygen electrocatalysis performances. The dualism of N-dopants and binary metals lowered the d-band centers of Fe and Co in the catalyst, improving the overpotential of the catalytic processes. The Fe, Co, N-C catalyst demonstrated a high areal power density in both liquid and solid-state Zn-air batteries, making it a suitable candidate for air cathode material in ZABs.
Article
Chemistry, Multidisciplinary
Ting He et al.
Summary: Iron, nitrogen-codoped carbon nanocomposites have been found to be effective electrocatalysts for the oxygen reduction reaction due to the formation of FeNxCy coordination moieties. Experimental and computational results show that incorporating single Cu sites can decrease the magnetic moment of the Fe centers and significantly enhance ORR activity over a wide pH range. When used as cathode catalysts in aluminum-air and zinc-air batteries, the Fe-N-C nanocomposites exhibit superior performance compared to commercial Pt/C or Pt/C-RuO2 catalysts.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Libo Deng et al.
Summary: A novel strategy was reported to prepare an Fe-SAC with all Fe atoms anchored on the surface of carbon nanospheres, showing an extraordinary UE of 80% for ORR. The Fe migration across the silica shell inhibits Fe aggregation and allows Fe atoms to anchor on the surface, leading to excellent ORR activity at low Fe content.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Applied
Xingkun Wang et al.
Summary: It is significant to understand how to improve electron transfer and ion/oxygen transport in catalyzing oxygen reduction reaction and oxygen evolution reaction (ORR and OER) for the rational construction of high-efficient bifunctional electrocatalysts. In this study, a novel three-in-one catalyst, Co9S8/Co-rGO, was synthesized, which exhibited abundant Mott-Schottky heterogeneous-interfaces, well-defined core-shell nanostructure, and defective carbon architecture. The integrated core-shell Mott-Schottky Co9S8/Co-rGO catalyst delivered robust and efficient rechargeable ZABs performance in neutral solution electrolytes.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Xiaoling Wang et al.
Summary: This study reports a novel Pd tetrahedron electrocatalyst with low-coordinated surface sites and lattice distortions for oxygen reduction reaction (ORR) in power generation devices. The catalyst exhibits remarkable activity and stability in alkaline electrolyte, outperforming commercial Pd/C and Pt/C. The low-coordinated surface sites are found to contribute significantly to the enhancement of ORR activity.
Article
Chemistry, Physical
Hanxu Yao et al.
Summary: Ru single atoms coupled with nanoclusters on hierarchical porous N-doped carbon exhibit high efficiency for hydrogen evolution reaction, with superior performance in alkaline and acidic conditions. These catalysts offer higher mass activity and lower cost for hydrogen production compared to commercial Pt/C, proving their industrial advantages.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Electrochemistry
Qingqing Liu et al.
Summary: Polymer-based electrolytes play a critical role in zinc-air batteries, improving their performance. This article reviews the recent progress in polymer-based electrolytes for zinc-air batteries and proposes future challenges and viable strategies.
Review
Chemistry, Multidisciplinary
Chang-Xin Zhao et al.
Summary: This Review summarizes the regulation strategies for promoting the intrinsic electrocatalytic ORR activity of M-N-C SACs by modulation of the center metal atoms, the coordinated atoms, the environmental atoms, and the guest groups. The study includes both theoretical calculations and experimental investigations to provide a comprehensive understanding of the structure-performance relationship. Proposed future directions involve developing advanced M-N-C SACs for electrocatalytic ORR and other analogous reactions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Junxing Han et al.
Summary: The novel single-atom electrocatalyst Fe-N-C/N-OMC exhibits high ORR activity, attributed to the unique structure of Fe-N-C sites and the advantages of the 3D mesoporous carbon structure.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Zhe Wang et al.
Summary: Researchers have developed a new ternary-atom catalyst with Co-Co dimers and Fe single sites, demonstrating superior performance in ORR.
By controlling the local configuration of atoms, researchers have enhanced the performance of the catalyst, making it a promising alternative to platinum for driving zinc-air batteries.
ADVANCED MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Tao Sun et al.
Summary: Single-atom electrocatalysts (SAECs) have gained significant research interest for their remarkable catalytic responses, which are closely related to their specific metal species and local atomic environments. The diverse chemical bonding configurations of SAECs offer limitless opportunities for rational design and synthesis. The review critically examines the role of local atomic structures in designing high-performance SAECs and discusses the challenges and prospects in the field.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Long Jiao et al.
Summary: Through the direct pyrolysis of MOFs assembled with Fe and Ni-doped ZnO nanoparticles, a novel Fe-1-Ni-1-N-C catalyst with neighboring Fe and Ni single-atom pairs on nitrogen-doped carbon support has been precisely constructed. The synergism of neighboring Fe and Ni single-atom pairs significantly boosts the electrocatalytic reduction of CO2, surpassing catalysts with separate Fe or Ni single atoms. The study reveals the importance of the communicative effect between adjacent single atoms for improved catalysis in single-atom catalysts containing multiple metal species.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Yan Yan et al.
Summary: This study presents a facile strategy for crafting MoS2@Fe-N-C bifunctional electrocatalysts with enhanced ORR and OER performance, leading to robust wearable ZABs with high capacity and outstanding cycling stability. The single-atom-interfaced core/shell design shows lowered energy barriers for both reactions, resulting in efficient metal-air batteries.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Physical
Fang Luo et al.
Summary: A secondary single-atom regulation strategy was developed to optimize the coordination environment of single atom Ni catalysts by introducing atomically dispersed Fe moieties, resulting in highly efficient oxygen electrocatalysis. The Fe, Ni dual atom catalyst showed superior performance in oxygen evolution reaction (OER), oxygen reduction reaction (ORR) and rechargeable zinc-air batteries, indicating its potential for practical applications in energy storage devices.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
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)
Article
Chemistry, Physical
Hongguan Li et al.
Summary: This study reveals the significant impact of the cooperative interplay between charge itineration and spin-polarization of electrons on catalytic behavior through density functional theory calculations. The Fe-Ni atomic pair is reported as a superior bifunctional catalyst for high performance ORR and OER, with a very small potential difference (Delta E) of 0.691 V. The coexistence of Fe 3d itinerant charge and moderate spin polarization is responsible for the superior functional catalytic activity for the Fe-Ni atomic pairs.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Review
Chemistry, Multidisciplinary
Qianli Ma et al.
Summary: This study investigates the use of Fe-N-C material as a model catalyst for TM-H-C to improve stability, with a systematic summary and discussion on different types of active sites and coordination in Fe-N-C, analysis of potential attenuation mechanisms and strategies, as well as proposed challenges and prospects for the future development of TM-H-C materials for advanced ORR catalysis.
Article
Chemistry, Multidisciplinary
Jian Zhou et al.
Summary: The research demonstrates a volcano-shaped relationship between electronic properties and OER activity, showing that NiFe-MOF with optimized energy level and electronic structure delivers ultra-low overpotentials. This electronic-structure/catalytic activity relationship is found to be universal for other Ni-based MOF catalysts, providing insights for designing highly efficient OER catalysts.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zhengpei Miao et al.
Summary: An effective strategy is developed to enhance the stability of non-noble-metal catalysts in fuel cells by improving the bonding strength between metal ions and chelating polymers. The optimized catalyst exhibits outstanding activity and stability in both half-cell and fuel cell cathodes, with near 100% retention of current density for an extended period. The study suggests that the Fe-N-4/C site can strongly stabilize Fe centers against demetalation, providing insights for further catalyst design.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Ali Han et al.
Summary: The modulation effect can enhance the catalytic activity of Fe-N-4 moiety through adjacent Pt-N-4 moiety, but it is less effective for optimizing the ORR performances of Co-N-4/Pt-N-4 and Mn-N-4/Pt-N-4 systems.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Zhaoyang Chen et al.
Summary: In this study, sulfur-doped Fe-1-NC catalyst was found to exhibit superior activity towards ORR compared to traditional Fe-NC materials. The incorporation of sulfur in the second coordination sphere of Fe-1-NC was shown to induce a transition of spin polarization configuration, with the low spin single-Fe3+-atom identified as the active site for ORR through operando Fe-57 Mossbauer spectra. Additionally, DFT calculations revealed that the lower spin state of the Fe center after sulfur doping promotes the OH* desorption process.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Multidisciplinary Sciences
Zhiping Zeng et al.
Summary: Diatomic site catalysts utilize two adjacent atomic metal species for their complementary functionalities and synergistic actions. The orbital coupling of hetero-diatomic nickel-iron site boosts CO2 reduction reaction and oxygen evolution reaction.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Meiling Xiao et al.
Summary: In this study, the electronic configuration of Co d-orbital was modulated by constructing the Ir-Co atomic pair, leading to boosted bifunctional activity. The developed dual-atom IrCo-N-C catalyst exhibited unprecedented activity, outperforming commercial Pt/C and Ir/C benchmarks.
Article
Chemistry, Physical
Deshuang Yu et al.
Summary: This study developed atomically dispersed Fe-Ni single atom catalysts that exhibit outstanding activity for oxygen reduction and evolution reactions, as well as superior performance in flexible zinc-air and aluminum-air batteries.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yajin Wang et al.
Summary: Understanding the relationship between the electronic state of active sites and N-2 reduction reaction performance is crucial for exploring efficient electrocatalysts. By atomically regulating the spin state of FeN4 in a polyphthalocyanine (PPc) organic framework, higher Faradaic efficiency and NH3 yields for NRR can be achieved, providing new opportunities for developing efficient NRR electrocatalysts.
Review
Nanoscience & Nanotechnology
Chenfeng Xia et al.
Summary: Zinc-air batteries are gaining attention in energy storage and conversion technologies, with electrospun materials showing promise in high-performance applications. This review explores the recent progress of electrospun technologies in zinc-air batteries, discussing their fundamental principles and application potential. Challenges and opportunities for electrospun nanomaterials in zinc-air batteries are also highlighted, aiming to inspire further innovation in energy conversion and storage technologies.
Article
Chemistry, Physical
Manman Feng et al.
Summary: The nitrogen-doped carbon matrix with precisely controlled Fe-Cu diatom sites synthesized through a metal-organic framework exhibits excellent performance in CO2 reduction reaction, outperforming most reported atomically dispersed catalysts. This work provides a new approach for advancing universal synthesis strategies to construct heteronuclear diatomic catalysts and explore synergistic effects.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Review
Chemistry, Physical
Yan Yan et al.
Summary: Fe-based atomic catalysts show great advantages in the ORR due to high atom-utilization efficiency and well-defined active sites. The high performance is mainly attributed to the coordination condition and electronic structures. Achieving high activity and stability with a high content of metal atoms remains a major challenge.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Materials Science, Multidisciplinary
Xiaotong Han et al.
Summary: The electronically and chemically coupled LDH/MQD/NG hybrids modulate the local electronic and surface structure of the active LDH, providing metallic conductivity and abundant active sites, leading to significantly improved bifunctional activity and electrocatalytic kinetics.
Article
Chemistry, Physical
Xiao Hu et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Chemistry, Multidisciplinary
Kai Yuan et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Materials Science, Multidisciplinary
Xuan Zhao et al.
Article
Multidisciplinary Sciences
Ya-Ping Deng et al.
NATURE COMMUNICATIONS
(2020)
Article
Chemistry, Multidisciplinary
Yuanmiao Sun et al.
ADVANCED MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Zhengju Zhu et al.
ADVANCED MATERIALS
(2020)
Article
Chemistry, Physical
Geunsu Bae et al.
Article
Chemistry, Multidisciplinary
Xuning Li et al.
Review
Chemistry, Multidisciplinary
Xiaofeng Zhu et al.
ENERGY & ENVIRONMENTAL SCIENCE
(2020)
Article
Chemistry, Multidisciplinary
Guangbo Chen et al.
ENERGY & ENVIRONMENTAL SCIENCE
(2020)
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Materials Science, Multidisciplinary
Nan Zhang et al.
Article
Chemistry, Physical
Xiao Liu et al.
Article
Chemistry, Multidisciplinary
Xiao-Tong Wang et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Chemistry, Physical
Gregor Klinser et al.
JOURNAL OF POWER SOURCES
(2018)
Article
Chemistry, Physical
Huilong Fei et al.
Article
Chemistry, Physical
Gaixia Zhang et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2017)
Review
Chemistry, Physical
Yuyan Shao et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2008)
