☆ 4.6 Review

Recent advances and future perspectives in MOF-derived single-atom catalysts and their application: a review

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Dynamic Activation of Adsorbed Intermediates via Axial Traction for the Promoted Electrochemical CO2 Reduction

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

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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.

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Typical transition metal single-atom catalysts with a metal-pyridine N structure for efficient CO2 electroreduction

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Dual carbon-hosted Co-N3 enabling unusual reaction pathway for efficient oxygen reduction reaction

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Article Chemistry, Physical

Single copper sites dispersed on defective TiO2-x as a synergistic oxygen reduction reaction catalyst

Minchan Li et al.

Summary: An efficient oxygen reduction reaction (ORR) catalyst consisting of atomically dispersed single copper sites confined by TiO2-x was developed through a synergistic strategy. The stability and activity of single copper atoms coupling with oxygen vacancies were significantly enhanced, showing promising application in Zn-air batteries. This novel electrocatalyst demonstrates the potential of stabilization of single-atom active sites for highly efficient electrocatalysts development.

JOURNAL OF CHEMICAL PHYSICS (2021)

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Article Multidisciplinary Sciences

Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice

G. W. K. Moore et al.

Summary: Ice arches at the northern and southern ends of Nares Strait, a key passage in the Arctic, are forming for shorter durations, leading to increased ice transport and accelerating the export of multi-year ice.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Multidisciplinary

Green Synthesis of a Highly Efficient and Stable Single-Atom Iron Catalyst Anchored on Nitrogen-Doped Carbon Nanorods for the Oxygen Reduction Reaction

Xilong Wang et al.

Summary: In this study, a single-atom iron electrocatalyst Fe-SA/NCS was synthesized, showing excellent catalytic activity and stability for the oxygen reduction reaction in both acidic and alkaline media. This catalyst exhibited outstanding electrochemical performance in zinc-air batteries, indicating its promising applications in sustainable energy technologies.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2021)

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Article Chemistry, Multidisciplinary

Single-Atom Photocatalysts for Emerging Reactions

Bingquan Xia et al.

Summary: Single-atom photocatalysts have shown great potential in producing value-added chemicals and fuels using sustainable solar energy. They exhibit excellent activities, selectivity, and stability, while reducing the consumption of catalytic metals and aiding in elucidating reaction mechanisms. Exciting opportunities exist for designing and fabricating high-performance single-atom photocatalysts in this area.

ACS CENTRAL SCIENCE (2021)

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Article Chemistry, Multidisciplinary

Non-Bonding Interaction of Neighboring Fe and Ni Single-Atom Pairs on MOF-Derived N-Doped Carbon for Enhanced CO2 Electroreduction

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)

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Article Chemistry, Multidisciplinary

Soluble/MOF-Supported Palladium Single Atoms Catalyze the Ligand-, Additive-, and Solvent-Free Aerobic Oxidation of Benzyl Alcohols to Benzoic Acids

Estefania Tiburcio et al.

Summary: Palladium single atoms can be spontaneously formed in neat benzyl alcohols and used for organic oxidation reactions without additives or solvents. By stabilizing Pd SACs within a metal-organic framework, a solid catalyst was successfully prepared and characterized.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

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Article Engineering, Chemical

Single atom Fe in favor of carbon disulfide (CS2) adsorption and thus the removal efficiency

Fei Wang et al.

Summary: Single-atom catalysts synthesized using the pyrolyzing coordinated polymer (PCP) strategy, specifically on the Al coordinated catalyst Fe-C/Al2O3, show optimal adsorption efficiency for CS2 removal. Compared to Fe2O3-C/Al2O3 catalyst, single-atom Fe catalyst exhibits remarkable advantage and decreased agglomeration, resulting in increased CS2 adsorption capacity. DFT calculation results reveal strong interaction between Fe and C atoms, contributing to the enhanced adsorption capacity on the Fe single-atom catalyst Fe-C/Al2O3.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

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Review Chemistry, Multidisciplinary

Single-Atom Catalysts Derived from Metal-Organic Frameworks for Electrochemical Applications

Lianli Zou et al.

Summary: This review summarizes the progress in the synthesis of MOF-derived SACs and their electrochemical applications. The synthetic approaches based on MOFs, characterization techniques for SACs, and their electrochemical applications including ORR, OER, HER, CO2RR, NRR, and other energy-related reactions are discussed. Insights into the current challenges and future prospects of this field are also briefly presented.

SMALL (2021)

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Article Chemistry, Multidisciplinary

MOF Structure Engineering to Synthesize Co-N-C Catalyst with Richer Accessible Active Sites for Enhanced Oxygen Reduction

Jiaojiao Gao et al.

Summary: A new metal-organic framework (MOF) structure-engineering strategy was developed to synthesize accordion-like MOF with higher loading amount and better spatial isolation of Co using acetate (OAc) assistance. The resulting Co-N-C catalyst exhibited higher density of active sites and remarkable ORR activity in alkaline electrolytes, along with outstanding durability and tolerance to methanol in both alkaline and acidic media.

SMALL (2021)

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Article Chemistry, Multidisciplinary

Single-Ni Sites Embedded in Multilayer Nitrogen-Doped Graphene Derived from Amino-Functionalized MOF for Highly Selective CO2 Electroreduction

Haojing Wang et al.

Summary: In this study, an amino-functionalized metal-organic framework was used as a precursor to derive Ni-N-C active sites embedded in multilayer graphene shells for CO2 electroreduction. The resulting catalyst exhibited excellent electrochemical CO2 reduction activity, achieving Faradaic efficiencies above 90% in a wide range of potentials. This work provides insights into the fabrication of highly active and selective electrocatalysts for CO2 reduction by tuning the metal sites with the coordination environment of MOFs.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2021)

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Article Chemistry, Physical

Metal-organic layers as a platform for developing single-atom catalysts for photochemical CO2 reduction

Ji-Hong Zhang et al.

Summary: This study successfully developed a highly efficient photocatalyst for converting carbon dioxide into carbon monoxide, significantly increasing the rate of CO evolution. The research results pave the way for the development of cost-effective photocatalysts containing single-atom sites for clean energy production.

NANO ENERGY (2021)

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Article Chemistry, Multidisciplinary

Surface Reduction State Determines Stabilization and Incorporation of Rh on α-Fe2O3(11 over bar 02)

Florian Kraushofer et al.

Summary: The study shows that under reducing conditions, rhodium atoms form clusters on the iron oxide surface, but upon annealing at high temperatures, they incorporate into the support lattice. Under oxidizing conditions, even large rhodium clusters dissolve into the surface.

ADVANCED MATERIALS INTERFACES (2021)

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Article Chemistry, Multidisciplinary

Synthesis of NiFe2O4@AC/UiO-66(Zr) for Enhancement of the Photocatalytic Performance of Alizarin Yellow R Under Visible-light

Omnia A. Elshamy et al.

Summary: In this study, NiFe2O4@AC/UiO-66(Zr) composites with different ratios of UiO-66(Zr) as support were successfully prepared and evaluated for their photodegradation efficiency of alizarin yellow R (AYR) under visible-light. NiFe2O4@AC/UiO-66(Zr)-2 exhibited the highest photoreactivity and the lowest bandgap, showing the highest photodegradation efficiency under visible-light.

CHEMISTRYSELECT (2021)

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Review Chemistry, Multidisciplinary

Techniques for the characterization of single atom catalysts

Ping Qi et al.

Summary: This review introduces the current research status of single atom catalysts, the characterization techniques for dispersion states of active sites, and future research directions, analyzing the advantages and limitations of each technique.

RSC ADVANCES (2021)

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Article Chemistry, Physical

Single atomically anchored iron on graphene quantum dots for a highly efficient oxygen evolution reaction

C. -Y. Chang et al.

Summary: A novel coordination adsorption strategy was developed to synthesize an efficient oxygen evolution reaction (OER) catalyst, which exhibited stable overpotential and long-term durability, outperforming the state-of-the-art RuO2.

MATERIALS TODAY ENERGY (2021)

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Article Chemistry, Multidisciplinary

Thermally Stable Single-Atom Heterogeneous Catalysts

Haifeng Xiong et al.

Summary: This article discusses recent advances in the development of thermally durable single-atom heterogeneous catalysts, describes several important preparation approaches for thermally stable SACs, and discusses the fundamental understanding of the coordination structures of thermally stable single atom prepared by these methods. The catalytic performances of these thermally stable SACs, including their activity and stability, are reviewed. Finally, a perspective of this important and rapidly evolving research field is provided.

ADVANCED MATERIALS (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 Engineering, Environmental

Ultrathin 2D catalysts with N-coordinated single Co atom outside Co cluster for highly efficient Zn-air battery

Hongbin Li et al.

Summary: A group of ultrathin 2D electrocatalysts, synthesized from a new metal-organic framework, show superior oxygen reduction reaction (ORR) activity and durability for zinc-air batteries, outperforming Pt/C catalysts. The strategy of designing and synthesizing these MOF-derived ultrathin electrocatalysts holds promise for developing metal-air batteries with higher power density.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Engineering, Environmental

In-situ growth of Ti3C2@MIL-NH2 composite for highly enhanced photocatalytic H2 evolution

Yujie Li et al.

Summary: Efficient metal-organic frameworks (MOFs) for photocatalytic H-2 production from water have gained significant attention, but their poor conductivity limits their activity. A Ti-based MOF composite (Ti3C2@MIL-NH2) was developed, showing superior H-2 evolution performance with a high rate. Intimate interfacial contact between Ti3C2 and MIL-NH2 accelerates electron transfer and improves photo-generated charge separation efficiency.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Energy & Fuels

Framework-Derived Tungsten Single-Atom Catalyst for Oxygen Reduction Reaction

Bizhi Jiang et al.

Summary: The synthesized W single-atom catalyst (W-N-C) obtained from ZIF-8 shows excellent activity for the oxygen reduction reaction (ORR), with a half-wave potential of 0.86 V and negligible current decay over a long-term durability test. This surpasses many nonprecious metals and even commercial Pt/C catalysts in terms of performance.

ENERGY & FUELS (2021)

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Article Chemistry, Physical

Water-Gas Shift Reaction on Titania-Supported Single-Metal-Atom Catalysts: The Role of Cation (Ti) and Oxygen Vacancy

Shuang Zhu et al.

Summary: Different types of single metal atoms or different embedded styles have significantly different effects on the reaction mechanism of the water-gas shift reaction. The adsorption strength of CO is related to its activation for the redox pathways, while the active site for the association mechanism pathway is adjacent to the single atom on the Ti atom.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

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Article Chemistry, Multidisciplinary

Environment of Metal-O-Fe Bonds Enabling High Activity in CO2 Reduction on Single Metal Atoms and on Supported Nanoparticles

Yifeng Zhu et al.

Summary: Research demonstrates that single atoms of Pt-group metals embedded into the surface of Fe3O4 have a stronger interaction with CO2, leading to significantly higher conversion rates compared to nanoparticles. The high activity of single atoms is primarily attributed to the influence of partially oxidic sites.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

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Article Nanoscience & Nanotechnology

Hofmann-Type Metal-Organic Framework Nanosheets for Oxygen Evolution

Tingting Wang et al.

Summary: The study focused on developing a unique Fe-Ni Hofmann-type MOF with superior activity for the oxygen evolution reaction (OER), achieving an overpotential of 290 mV at a current density of 10 mA/cm² and a Tafel slope of 44 mV/dec. This performance, combined with outstanding durability, makes it the best among known Hofmann-type MOFs for the OER to date.

ACS APPLIED NANO MATERIALS (2021)

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Article Chemistry, Applied

3D star-like atypical hybrid MOF derived single-atom catalyst boosts oxygen reduction catalysis

Lei Zhou et al.

Summary: A 3D hybrid MOF composed of cobalt doped ZIF-L and ZIF-8 was demonstrated as an advanced precursor for making Co SACs to greatly boost ORR. The newly synthesized Co-SA-N-C exhibited excellent ORR activity, outperforming commercial Pt/C and showing high performance in acidic medium.

JOURNAL OF ENERGY CHEMISTRY (2021)

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Article Nanoscience & Nanotechnology

MOF-Templated Sulfurization of Atomically Dispersed Manganese Catalysts Facilitating Electroreduction of CO2 to CO

Hui-Ying Tan et al.

Summary: This study investigates the impact of sulfur dopants on the electrochemical CO2 reduction reaction by synthesizing sulfurized MOF-derived Mn single-atom catalysts, revealing significantly enhanced activity in CO production. Through characterizations and spectroscopic analysis, it is found that the presence of sulfur atoms in the MnN3S1 moiety contributes to the stabilization of critical intermediates and leads to improved overall CO production efficiency.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Multidisciplinary

Atomically Dispersed Iron Metal Site in a Porphyrin-Based Metal-Organic Framework for Photocatalytic Nitrogen Fixation

Shanshan Shang et al.

Summary: The rational design of a porphyrin-based metal-organic framework (PMOF) with Fe as the active center for N-2 reduction reaction (NRR) under ambient conditions shows promise for efficient ammonia production. The catalyst exhibits high stability, ideal N-2 activation, and significant enhancement in NH3 yield and production rate, making it a potential candidate for use in artificial photosynthesis and revolutionizing ammonia production.

ACS NANO (2021)

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Article Chemistry, Multidisciplinary

Strategic Defect Engineering of Metal-Organic Frameworks for Optimizing the Fabrication of Single-Atom Catalysts

Jie He et al.

Summary: A versatile synthetic strategy was demonstrated to generate transition metal single-atom catalysts (M SAs/NC, M = Co, Cu, Mn) through defect engineering of metal-organic frameworks. By deliberately introducing structural defects within the MOF framework, the interatomic distance between metal sites was increased, inhibiting metal aggregation and resulting in a 70% increase in single metal atom yield. The optimized Co SAs/NC-800 showed superior activity and reusability for the selective hydrogenation of nitroarenes, surpassing several state-of-art non-noble-metal catalysts.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

An Adjacent Atomic Platinum Site Enables Single-Atom Iron with High Oxygen Reduction Reaction Performance

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)

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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

The Controllable Reconstruction of Bi-MOFs for Electrochemical CO2 Reduction through Electrolyte and Potential Mediation

Dazhi Yao et al.

Summary: This study investigates the reconstruction of a Bi-based metal-organic framework for electrochemical CO2 reduction, demonstrating that controlling the intricate reconstruction process results in excellent activity and stability of the Bi catalyst, shedding light on the design of highly efficient electrocatalysts.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Physical

Two Types of Single-Atom FeN4 and FeN5 Electrocatalytic Active Centers on N-Doped Carbon Driving High Performance of the SA-Fe-NC Oxygen Reduction Reaction Catalyst

Xiao Liang et al.

Summary: The novel SA-Fe-NC single-atom catalyst prepared via a spatial isolation strategy exhibits excellent ORR activity and stability, making it suitable for high-performance batteries based on ZAB.

CHEMISTRY OF MATERIALS (2021)

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Article Chemistry, Physical

Theoretical Insights into CO Oxidation over MOF-808-Encapsulated Single-Atom Metal Catalysts

Wenjuan Xue et al.

Summary: This study investigates the mechanism and kinetics of CO oxidation over a series of MOF-808-encapsulated SACs, finding that Pt-II is the most stable and the Langmuir-Hinshelwood mechanism is the most favorable CO oxidation route. Among the six MOF-808-M-II catalysts, MOF-808-Pt-II is the most active catalyst for CO oxidation.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

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Article Chemistry, Multidisciplinary

Modulating Coordination Environment of Single-Atom Catalysts and Their Proximity to Photosensitive Units for Boosting MOF Photocatalysis

Xing Ma et al.

Summary: A general and facile strategy for the construction of high-loading single-atom catalysts with a tunable coordination microenvironment has been developed based on metal-organic frameworks. The well-accessible and atomically dispersed metal sites possess close proximity to photosensitive units, greatly accelerating charge transfer and promoting photocatalysis. The optimized Ni-1-S/MOF with a unique Ni(I) microenvironment presents excellent photocatalytic H-2 production activity, surpassing other counterparts.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

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Article Chemistry, Applied

Multiscale structural engineering of atomically dispersed FeN4 electrocatalyst for proton exchange membrane fuel cells

Ruguang Wang et al.

Summary: The 3D metal-organic frameworks-derived Fe-N-C single-atom catalyst reported in this study enhances the site density of active Fe-N-4 moiety and facilitates mass transport, leading to excellent performance in the oxygen reduction reaction in proton exchange membrane fuel cells.

JOURNAL OF ENERGY CHEMISTRY (2021)

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Article Chemistry, Physical

Boosting the activity of non-platinum group metal electrocatalyst for the reduction of oxygen via dual-ligated atomically dispersed precursors immobilized on carbon supports

Yu Zhou et al.

Summary: This paper describes the synthesis of iron-based single atom electrocatalysts using atomically dispersed precursors and conductive carbon dispersion. A dual-ligated metal organic framework precursor was designed, immobilized onto Ketjen black carbon, achieving near complete dispersion of iron sites without obvious formation of nanoparticles. The resulting electrocatalyst exhibited high activity with a onset potential of 0.96 V and a half-wave potential of 0.84 V vs. RHE.

NANO ENERGY (2021)

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Article Chemistry, Multidisciplinary

Quasi-Paired Pt Atomic Sites on Mo2C Promoting Selective Four-Electron Oxygen Reduction

Lei Zhang et al.

Summary: The study demonstrates that atomically dispersed Pt monomers strongly interacting on a Mo2C support can serve as a model catalyst for the four-electron ORR, achieving higher activity and selectivity through beneficial interactions between two closely neighboring but non-contiguous Pt single atom sites (quasi-paired Pt single atoms).

ADVANCED SCIENCE (2021)

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Review Chemistry, Physical

Atomic regulation of metal-organic framework derived carbon-based single-atom catalysts for the electrochemical CO2 reduction reaction

Danni Zhou et al.

Summary: Metal-organic framework (MOF) derived single-atom catalysts exhibit high electrocatalytic performance in carbon dioxide reduction reactions, with the reaction pathway of CO2RR being precisely regulated by modulating elements and atomic structures. Main fabrication strategies and further regulations of the coordination environment of central atoms are systematically discussed in this review, providing new insights for future research on single-atom catalysts and CO2RR.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Physical

Hollow mesoporous carbon nanocages with Fe isolated single atomic site derived from a MOF/polymer for highly efficient electrocatalytic oxygen reduction

Congcong Wang et al.

Summary: The study prepared Fe-ISAs/H-CNs electrocatalysts with higher half-wave potential and exceptional kinetic current density, exhibiting better stability and tolerance to methanol crossover in alkaline media compared to commercial Pt/C catalysts and most previously reported non-precious-metal catalysts. The superior performance was attributed to the hollow carbon nanocages and the Fe single atoms with the Fe-N-4 configuration.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Review Chemistry, Physical

Catalytically active sites of MOF-derived electrocatalysts: synthesis, characterization, theoretical calculations, and functional mechanisms

Zibo Zhai et al.

Summary: This paper reviews the recent progress in MOF-derived electrocatalysts, focusing on the characterization of catalytically active sites, functional mechanisms, and performance validation of various reactions. The synthesis methods, including alloy and composite formation, edge-defect/oxygen vacancy engineering, as well as advanced characterization techniques and theoretical calculations are discussed. The paper also analyzes technical challenges and proposes further research directions for the development of practical MOF-derived electrocatalysts in the future.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Review Chemistry, Multidisciplinary

Metal-organic frameworks for environmental applications

Yinghao Wen et al.

Summary: Metal-organic frameworks (MOFs) are promising photocatalysts for degrading organic pollutants due to their unique structure, which includes redox-sensitive metals and light-harvesting organic linkers. However, their widespread adoption in environmental cleanup faces technical challenges that need to be addressed for enhanced environmental stability and photocatalytic activity. The scientific community must further explore key challenges to advance the applications of MOFs in environmental settings.

CELL REPORTS PHYSICAL SCIENCE (2021)

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Review Chemistry, Multidisciplinary

Turning metal-organic frameworks into efficient single-atom catalysts via pyrolysis with a focus on oxygen reduction reaction catalysts

Linyu Hu et al.

Summary: This review summarizes the recent strategies of converting selected MOFs into SACs, with a focus on ORR catalysts. The strategies include direct transformation of metal sites in MOFs into single-atom sites, introduction of additional metal precursors to supplement active sites in SACs, and combination of nonmetal heteroatom-rich precursors with MOFs to provide more coordination sites for anchoring metal atoms.

ENERGYCHEM (2021)

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Article Chemistry, Multidisciplinary

Fe1N4-O1 site with axial Fe-O coordination for highly selective CO2 reduction over a wide potential range

Zhiqiang Chen et al.

Summary: Through a fast-pyrolyzing and controllable-activation strategy, an O-rich carbonaceous support and atomically dispersed FeN4 site with axial O coordination were constructed, achieving a wide potential range and high FECO. DFT calculations revealed that the superior performance originated from the axial O-coordination induced electronic localization enhancement, facilitating CO desorption and increasing the energy barrier for competitive hydrogen evolution reaction.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Chemistry, Multidisciplinary

Single-atom-catalyst with abundant Co-S4 sites for use as a counter electrode in photovoltaics

Nannan Li et al.

Summary: In this study, a 7.35 wt% Co loading C-SAC was synthesized through the pyrolysis of Co-MOF-74 in a strongly polar molten salt system. The SAC based counter electrode showed higher photoelectric conversion efficiency than the Pt counter electrode in dye-sensitized solar cells. This research provides new insights for the preparation and application of C-SACs.

CHEMICAL COMMUNICATIONS (2021)

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Article Chemistry, Multidisciplinary

Amination strategy to boost the CO2 electroreduction current density of M-N/C single-atom catalysts to the industrial application level

Zhipeng Chen et al.

Summary: Despite the high Faraday efficiency for CO production, single-atom catalysts immobilized on nitrogen-doped carbon supports demonstrate low reaction current density. A novel amination strategy significantly increases the current density for CO production, particularly the aminated Ni single-atom catalyst achieving a remarkable CO partial current density of 450 mA cm(-2) with high FE. DFT calculations and experimental research reveal that the enhanced activity is due to the regulation of electronic structure of the aminated catalysts, offering a promising method for improving current density in industrial-level single-atom catalysts for CO2RR.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Chemistry, Physical

Novel two-dimensional MOF as a promising single-atom electrocatalyst for CO2 reduction: A theoretical study

Qianyi Cui et al.

APPLIED SURFACE SCIENCE (2020)

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Review Chemistry, Physical

Recent Advanced Materials for Electrochemical and Photoelectrochemical Synthesis of Ammonia from Dinitrogen: One Step Closer to a Sustainable Energy Future

Zihao Yan et al.

ADVANCED ENERGY MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Rare Earth Single-Atom Catalysts for Nitrogen and Carbon Dioxide Reduction

Jieyuan Liu et al.

ACS NANO (2020)

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Article Chemistry, Applied

Influence of oxophilic behavior of UiO-66(Ce) metal-organic framework with superior catalytic performance in Friedel-Crafts alkylation reaction

Nagarathinam Nagarjun et al.

APPLIED ORGANOMETALLIC CHEMISTRY (2020)

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Article Chemistry, Inorganic & Nuclear

Cobalt-Based MOF-on-MOF Two-Dimensional Heterojunction Nanostructures for Enhanced Oxygen Evolution Reaction Electrocatalytic Activity

Qingqing Zha et al.

INORGANIC CHEMISTRY (2020)

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Article Chemistry, Multidisciplinary

Preparation of Nonprecious Metal Electrocatalysts for the Reduction of Oxygen Using a Low-Temperature Sacrificial Metal

Talha Al-Zoubi et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

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Article Multidisciplinary Sciences

U1 snRNP regulates cancer cell migration and invasion in vitro

Jung-Min Oh et al.

NATURE COMMUNICATIONS (2020)

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Article Chemistry, Physical

Impact of the Coordination Environment on Atomically Dispersed Pt Catalysts for Oxygen Reduction Reaction

Siwei Li et al.

ACS CATALYSIS (2020)

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Article Chemistry, Physical

Efficient Photocatalytic Nitrogen Fixation over Cuδ+-Modified Defective ZnAl-Layered Double Hydroxide Nanosheets

Shuai Zhang et al.

ADVANCED ENERGY MATERIALS (2020)

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Article Chemistry, Physical

Boosting CO2 Electroreduction to CH4 via Tuning Neighboring Single-Copper Sites

Anxiang Guan et al.

ACS ENERGY LETTERS (2020)

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Article Nanoscience & Nanotechnology

Two-Dimensional Bimetallic Zn/Fe-Metal-Organic Framework (MOF)-Derived Porous Carbon Nanosheets with a High Density of Single/Paired Fe Atoms as High-Performance Oxygen Reduction Catalysts

Long Zheng 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

Cobalt Single-Atom Catalysts with High Stability for Selective Dehydrogenation of Formic Acid

Xiang Li et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Chemistry, Multidisciplinary

Atomically Dispersed Fe on Nanosheet-linked, Defect-rich, Highly N-Doped 3D Porous Carbon for Efficient Oxygen Reduction

Yuqing Wang et al.

CHEMICAL RESEARCH IN CHINESE UNIVERSITIES (2020)

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Review Chemistry, Multidisciplinary

Metal-Organic Framework-Based Catalysts with Single Metal Sites

Yong-Sheng Wei et al.

CHEMICAL REVIEWS (2020)

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Review Chemistry, Multidisciplinary

Recent Advances and Challenges of Electrocatalytic N2 Reduction to Ammonia

Geletu Qing et al.

CHEMICAL REVIEWS (2020)

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Review Chemistry, Multidisciplinary

Heterogeneous Single-Atom Photocatalysts: Fundamentals and Applications

Chao Gao et al.

CHEMICAL REVIEWS (2020)

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Review Chemistry, Inorganic & Nuclear

Applications of metal-organic framework-derived materials in fuel cells and metal-air batteries

Xudong Wen et al.

COORDINATION CHEMISTRY REVIEWS (2020)

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Editorial Material Chemistry, Physical

Metal-Organic Frameworks as a Good Platform for the Fabrication of Single-Atom Catalysts

Haigen Huang et al.

ACS CATALYSIS (2020)

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Article Chemistry, Physical

Sequential Synthesis and Active-Site Coordination Principle of Precious Metal Single-Atom Catalysts for Oxygen Reduction Reaction and PEM Fuel Cells

Qingtao Liu et al.

ADVANCED ENERGY MATERIALS (2020)

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Article Chemistry, Physical

Harnessing the interplay of Fe-Ni atom pairs embedded in nitrogen-doped carbon for bifunctional oxygen electrocatalysis

Xiaofeng Zhu et al.

NANO ENERGY (2020)

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Article Chemistry, Physical

Preparation and Performances of ZIF-67-Derived FeCo Bimetallic Catalysts for CO2 Hydrogenation to Light Olefins

Zichao Dong et al.

CATALYSTS (2020)

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Article Chemistry, Multidisciplinary

Single-Atom Catalysts Supported by Crystalline Porous Materials: Views from the Inside

Tianjun Zhang et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Negative Pressure Pyrolysis Induced Highly Accessible Single Sites Dispersed on 3D Graphene Frameworks for Enhanced Oxygen Reduction

Huang Zhou et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Chemistry, Physical

Hierarchically micro- and meso-porous Fe-N4O-doped carbon as robust electrocatalyst for CO2 reduction

Xiaoshan Wang et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2020)

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Article Chemistry, Physical

Metal-organic framework-derived mesoporous carbon nanoframes embedded with atomically dispersed Fe-Nx active sites for efficient bifunctional oxygen and carbon dioxide electroreduction

Xi Chen et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2020)

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Article Chemistry, Multidisciplinary

Boosting Electrocatalytic Nitrogen Fixation with Co-N3 Site-Decorated Porous Carbon

Meichun Qin et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2020)

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Confined pyrolysis transformation of ZIF-8 to hierarchically ordered porous Zn-N-C nanoreactor for efficient CO2 photoconversion under mild conditions

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Single Cobalt Sites Dispersed in Hierarchically Porous Nanofiber Networks for Durable and High-Power PGM-Free Cathodes in Fuel Cells

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Coexisting Single-Atomic Fe and Ni Sites on Hierarchically Ordered Porous Carbon as a Highly Efficient ORR Electrocatalyst

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Design of a Single-Atom Indiumδ+-N4Interface for Efficient Electroreduction of CO2to Formate

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Single-Atom Ru-Implanted Metal-Organic Framework/MnO2 for the Highly Selective Oxidation of NOx by Plasma Activation

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Recent Advances in MOF-Derived Single Atom Catalysts for Electrochemical Applications

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Direct Characterization of Atomically Dispersed Catalysts: Nitrogen-Coordinated Ni Sites in Carbon-Based Materials for CO2Electroreduction

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Single-Iron Site Catalysts with Self-Assembled Dual-size Architecture and Hierarchical Porosity for Proton-Exchange Membrane Fuel Cells

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Intrinsic Activity of Metal Centers in Metal-Nitrogen-Carbon Single-Atom Catalysts for Hydrogen Peroxide Synthesis

Chang Liu et al.

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Transition Metal and Metal-Nx Codoped MOF-Derived Fenton-Like Catalysts: A Comparative Study on Single Atoms and Nanoparticles

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Theoretical insights into single-atom catalysts

Lulu Li et al.

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A metal-organic framework/polymer derived catalyst containing single-atom nickel species for electrocatalysis

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The metal-organic framework UiO-66 with missing-linker defects: A highly active catalyst for carbon dioxide cycloaddition

Wenlong Xiang et al.

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Metal-organic-frameworks-engaged formation of Co0.85Se@C nanoboxes embedded in carbon nanofibers film for enhanced potassium-ion storage

Christian Atangana Etogo et al.

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Bimetallic Mo-Co nanoparticles anchored on nitrogen-doped carbon for enhanced electrochemical nitrogen fixation

Yizhen Zhang et al.

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Supported dual-atom catalysts: Preparation, characterization, and potential applications

Jing Zhang et al.

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Atomically dispersed ruthenium sites on whisker-like secondary microstructure of porous carbon host toward highly efficient hydrogen evolution

Liwen Xing et al.

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Anchoring MOF-derived CoS2 on sulfurized polyacrylonitrile nanofibers for high areal capacity lithium-sulfur batteries

Amir Abdul Razzaq et al.

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2D Single-Atom Catalyst with Optimized Iron Sites Produced by Thermal Melting of Metal-Organic Frameworks for Oxygen Reduction Reaction

Dong Liu et al.

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Micro-nanostructural designs of bifunctional electrocatalysts for metal-air batteries

Fang Shi et al.

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Highly Active and Stable Single-Atom Cu Catalysts Supported by a Metal-Organic Framework

Ali M. Abdel-Mageed et al.

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Ga-Doped and Pt-Loaded Porous TiO2-SiO2 for Photocatalytic Nonoxidative Coupling of Methane

Shiqun Wu et al.

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Single-Boron Catalysts for Nitrogen Reduction Reaction

Chuangwei Liu et al.

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Heterogeneous electrocatalysts design for nitrogen reduction reaction under ambient conditions

Yuchi Wan et al.

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

Xuning Li et al.

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Single-Atom Catalysts for Photocatalytic Reactions

Qiushi Wang et al.

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Metal-Organic-Framework-Based Single-Atom Catalysts for Energy Applications

Long Jiao et al.

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A Single-Crystal Open-Capsule Metal-Organic Framework

Yong-Sheng Wei et al.

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Reversible and cooperative photoactivation of single-atom Cu/TiO2 photocatalysts

Byoung-Hoon Lee et al.

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Dynamic Evolution of Atomically Dispersed Cu Species for CO2 Photoreduction to Solar Fuels

Lan Yuan et al.

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

Xueping Sun et al.

NANO ENERGY (2019)

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Atomic-Scale Insights into the Low-Temperature Oxidation of Methanol over a Single-Atom Pt1-Co3O4 Catalyst

Zeyu Jiang et al.

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Mesoporous Nitrogen-Doped Carbon-Nanosphere-Supported Isolated Single-Atom Pd Catalyst for Highly Efficient Semihydrogenation of Acetylene

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

Ergui Luo et al.

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Fundamentals and applications of photocatalytic CO2 methanation

Ulrich Ulmer et al.

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Scalable Production of Efficient Single-Atom Copper Decorated Carbon Membranes for CO2 Electroreduction to Methanol

Hengpan Yang et al.

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Atomically Dispersed Binary Co-Ni Sites in Nitrogen-Doped Hollow Carbon Nanocubes for Reversible Oxygen Reduction and Evolution

Xiaopeng Han et al.

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Electroreduction of CO2 on Single-Site Copper-Nitrogen-Doped Carbon Material: Selective Formation of Ethanol and Reversible Restructuration of the Metal Sites

Dilan Karapinar et al.

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Bismuth Single Atoms Resulting from Transformation of Metal-Organic Frameworks and Their Use as Electrocatalysts for CO2 Reduction

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Low-Temperature Oxidation of Methanol to Formaldehyde on a Model Single-Atom Catalyst: Pd Atoms on Fe3O4(001)

Matthew D. Marcinkowski et al.

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Metal-Organic-Framework-Derived Hollow N-Doped Porous Carbon with Ultrahigh Concentrations of Single Zn Atoms for Efficient Carbon Dioxide Conversion

Qihao Yang et al.

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Puffing Up Energetic Metal-Organic Frameworks to Large Carbon Networks with Hierarchical Porosity and Atomically Dispersed Metal Sites

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Atomically dispersed Fe-N-C derived from dual metal-organic frameworks as efficient oxygen reduction electrocatalysts in direct methanol fuel cells

Xinlong Xu et al.

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Design Principle of Fe-N-C Electrocatalysts: How to Optimize Multimodal Porous Structures?

Soo Hong Lee et al.

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Double-slit photoelectron interference in strong-field ionization of the neon dimer

Maksim Kunitski et al.

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Fabricating Single-Atom Catalysts from Chelating Metal in Open Frameworks

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Metal-organic frameworks for catalysis: State of the art, challenges, and opportunities

Dandan Li et al.

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Metal-organic framework-derived materials for electrochemical energy applications

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Atomically dispersed Fe-Nx active sites within hierarchical mesoporous carbon as efficient electrocatalysts for the oxygen reduction reaction

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Selectivity for ethanol partial oxidation: the unique chemistry of single-atom alloy catalysts on Au, Ag, and Cu(111)

Hao Li et al.

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Single-Atom Catalysts: From Design to Application

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Single-Atom Catalysts: Emerging Multifunctional Materials in Heterogeneous Catalysis

Huabin Zhang et al.

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Atomically Dispersed Transition Metals on Carbon Nanotubes with Ultrahigh Loading for Selective Electrochemical Carbon Dioxide Reduction

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Single Tungsten Atoms Supported on MOF-Derived N-Doped Carbon for Robust Electrochemical Hydrogen Evolution

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The Hydrogen Evolution Reaction in Alkaline Solution: From Theory, Single Crystal Models, to Practical Electrocatalysts

Yao Zheng et al.

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Single cobalt sites in mesoporous N-doped carbon matrix for selective catalytic hydrogenation of nitroarenes

Xiaohui Sun et al.

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Controllable Construction of Core-Shell Polymer@Zeolitic Imidazolate Frameworks Fiber Derived Heteroatom-Doped Carbon Nanofiber Network for Efficient Oxygen Electrocatalysis

Yingxuan Zhao et al.

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Structural absorption by barbule microstructures of super black bird of paradise feathers

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Silica-Protected Ultrathin Ni3FeN Nanocatalyst for the Efficient Hydrolytic Dehydrogenation of NH3BH3

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Achieving a Record-High Yield Rate of 120.9 μgNH3 mgcat-1. h-1 for N2 Electrochemical Reduction over Ru Single-Atom Catalysts

Zhigang Geng et al.

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Single Co Atoms Anchored in Porous N-Doped Carbon for Efficient Zinc-Air Battery Cathodes

Wenjie Zang et al.

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Single-atomic cobalt sites embedded in hierarchically ordered porous nitrogen-doped carbon as a superior bifunctional electrocatalyst

Tingting Sun et al.

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

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Direct transformation of bulk copper into copper single sites via emitting and trapping of atoms

Yunteng Qu et al.

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Cobalt Single Atoms Immobilized N-Doped Carbon Nanotubes for Enhanced Bifunctional Catalysis toward Oxygen Reduction and Oxygen Evolution Reactions

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Strategies for Stabilizing Atomically Dispersed Metal Catalysts

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General synthesis and definitive structural identification of MN4C4 single-atom catalysts with tunable electrocatalytic activities

Huilong Fei et al.

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Catalysis by Supported Single Metal Atoms

Jingyue Liu

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Atomically Dispersed Fe/N-Doped Hierarchical Carbon Architectures Derived from a Metal-Organic Framework Composite for Extremely Efficient Electrocatalysis

Qi-Long Zhu et al.

ACS ENERGY LETTERS (2017)

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A Stable Nanocobalt Catalyst with Highly Dispersed CoNx Active Sites for the Selective Dehydrogenation of Formic Acid

Conghui Tang et al.

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Single atom catalyst by atomic layer deposition technique

Niancai Cheng et al.

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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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Coordination chemistry in the design of heterogeneous photocatalysts

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Metal-Organic Framework (MOF) Compounds: Photocatalysts for Redox Reactions and Solar Fuel Production

Amarajothi Dhakshinamoorthy et al.

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A mesoporous Fe/N/C ORR catalyst for polymer electrolyte membrane fuel cells

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Modification Strategies with Inorganic Acids for Efficient Photocatalysts by Promoting the Adsorption of O-2

Zhijun Li et al.

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Definitive Molecular Level Characterization of Defects in UiO-66 Crystals

Christopher A. Trickett et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2015)

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Cerium-based metal organic frameworks with UiO-66 architecture: synthesis, properties and redox catalytic activity

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The Challenge of Electrochemical Ammonia Synthesis: A New Perspective on the Role of Nitrogen Scaling Relations

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MOF Crystal Chemistry Paving the Way to Gas Storage Needs: Aluminum-Based soc-MOF for CH4, O-2, and CO2 Storage

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Identification of catalytic sites for oxygen reduction in iron- and nitrogen-doped graphene materials

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Nanocrystals from solutions: catalysts

Yuen Wu et al.

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Multi-shelled CeO2 hollow microspheres as superior photocatalysts for water oxidation

Jian Qi et al.

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Perspective on density functional theory

Kieron Burke

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Single-atom catalysis of CO oxidation using Pt1/FeOx

Botao Qiao et al.

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Supramolecular coordination chemistry of aromatic polyoxalamide ligands: A metallosupramolecular approach toward functional magnetic materials

Marie-Claire Dul et al.

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Selective Catalytic Hydrogenation of Functionalized Nitroarenes: An Update

Hans-Ulrich Blaser et al.

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Evolution of gold structure during thermal treatment of Au/FeOx catalysts revealed by aberration-corrected electron microscopy

Lawrence F. Allard et al.

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Metal-organic framework from an anthracene derivative containing nanoscopic cages exhibiting high methane uptake

Shengqian Ma et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2008)

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Metal-organic framework as a template for porous carbon synthesis

Bo Liu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2008)

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A new zirconium inorganic building brick forming metal organic frameworks with exceptional stability

Jasmina Hafizovic Cavka et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2008)

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Colossal cages in zeolitic imidazolate frameworks as selective carbon dioxide reservoirs

Bo Wang et al.

NATURE (2008)

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Exceptional chemical and thermal stability of zeolitic imidazolate frameworks

Kyo Sung Park et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2006)

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Ligand-directed strategy for zeolite-type metal-organic frameworks: Zinc(II) imidazolates with unusual zeolitic topologies

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A chromium terephthalate-based solid with unusually large pore volumes and surface area

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Systematic design of pore size and functionality in isoreticular MOFs and their application in methane storage

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