Recent Advances in Non‐Precious Metal Single‐Atom Electrocatalysts for Oxygen Reduction Reaction in Low‐Temperature Polymer‐Electrolyte Fuel Cells

ChemCatChem, Journal Year: 2023, Volume and Issue: 15(22)

Published: Oct. 9, 2023

Abstract Fuel cells have emerged as a promising clean electrochemical energy technology with great potential in various sectors, including transportation and power generation. However, the high cost scarcity of noble metals currently used to synthesise electrocatalysts for low‐temperature fuel has hindered their widespread commercialisation. In recent decades, development non‐precious metal cathodic oxygen reduction reaction (ORR) gained significant attention. Among those, atomically dispersed active sites, referred single‐atom catalysts (SACs), are gaining more interest. Nanocarbon materials containing single transition atoms coordinated nitrogen ORR both acidic alkaline conditions thus promise be utilised cathode cells. This review article provides an overview advancements utilisation metal‐based SACs proton exchange membrane (PEMFCs) anion (AEMFCs). We highlight main strategies synthetic approaches tailoring properties enhance activity durability. Based on already achieved results, it is evident that indeed could suitable

Language: Английский

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Advanced design strategies for Fe-based metal–organic framework-derived electrocatalysts toward high-performance Zn–air batteries

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(5), P. 1725 - 1755

Published: Jan. 1, 2024

This article summarizes the regulation strategies of Fe-based MOFs-derived electrocatalysts for ZABs, and provides a prospect their future development.

Language: Английский

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Electronic structure regulation of the Fe-based single-atom catalysts for oxygen electrocatalysis

Nano Energy, Journal Year: 2024, Volume and Issue: 121, P. 109268 - 109268

Published: Jan. 9, 2024

Language: Английский

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Boosted electrocatalytic activity and durability of Cu Fe/N C by modulating the interfacial composition and electronic structure for efficient oxygen reduction reaction

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 771 - 780

Published: Aug. 5, 2024

Language: Английский

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Tailoring the Chemisorption Manner of Fe d‐Band Center with La₂O₃ for Enhanced Oxygen Reduction in Anion Exchange Membrane Fuel Cells

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(9)

Published: Nov. 27, 2023

Abstract Engineering the electronic configuration and intermediates adsorption behaviors of high‐performance non‐noble‐metal‐based catalysts for sluggish oxygen reduction reaction (ORR) kinetics at cathode is highly imperative development anion exchange membrane fuel cells (AEMFCs), yet remains an enormous challenge. Herein, a rare‐earth metal oxide engineering tactic through formation Fe 3 O 4 /La 2 heterostructures in N,O‐doped carbon nanospheres (Fe @N,O‐CNSs) efficient electrocatalysis reported. The theoretical calculations reveal that interfacial bonds formed by La─O─Fe heterogeneous interface effectively optimize structure d‐band center relative to Fermi level, which results significant barriers rate‐limiting steps during ORR. modulation chemisorption enables @N,O‐CNSs outstanding ORR performance improved stability, with significantly higher half‐wave potential value (0.88 V). More impressively, this integrated catalyst delivers remarkable power density 148.7 mW cm −2 practical AEMFC operating conditions, along negligible degradation over 100 h using H ‐air atmosphere, than commercial Pt/C‐coupled electrodes. presented here are believed provide guidelines fabricating AEMFCs electrocatalysts terms heterointerface strong coupling effect induced oxides.

Language: Английский

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FeM/rGO (M = Ni and Cu) as bifunctional oxygen electrode

Fuel, Journal Year: 2024, Volume and Issue: 368, P. 131654 - 131654

Published: April 7, 2024

Language: Английский

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Recent Progress and Prospects of Manganese–Nitrogen–Carbon Electrocatalysts for Oxygen Reduction Reaction

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(12), P. 10589 - 10612

Published: June 7, 2024

The oxygen reduction reaction (ORR) holds significant importance in the electrochemical processes of energy conversion systems. kinetics ORR are sluggish as it is involved multistep reactions. It imperative to investigate electrocatalysts with outstanding performance and durability accelerating their kinetics. Manganese–nitrogen–carbon (Mn–N–C) materials offer advantages including efficient atom utilization easily tunable coordination structures, rendering them promising candidates for enhancing catalytic activity. mini-review provides a concise overview fundamental principles underlying ORR. Then, three strategies regulating structure summarized improve activity Mn–N–C catalysts: adjusting number N atoms around Mn atoms, doping nonmetal metal atoms. Finally, this outlines challenges prospects associated catalyst This anticipated deepen comprehension readers by presenting targeted optimization methods regulate configuration catalysts.

Language: Английский

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Recent advances and prospects of iron-based noble metal-free catalysts for oxygen reduction reaction in acidic environment: A mini review

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 59, P. 697 - 714

Published: Feb. 10, 2024

Language: Английский

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Enhanced oxygen reduction reaction on La-Fe bimetal in porous N-doped carbon dodecahedra with CNTs wrapping

Chinese Chemical Letters, Journal Year: 2024, Volume and Issue: 36(1), P. 109569 - 109569

Published: Feb. 1, 2024

Language: Английский

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Si-doped biomass carbon supported Fe-N-C catalyst derived from pyrolysis of iron porphyrin for oxygen reduction reaction

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 987, P. 174172 - 174172

Published: March 16, 2024

Language: Английский

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