Lian, Y.; Xu, J.; Zhou, W.; Lin, Y.; Bai, J. Research Progress on Atomically Dispersed Fe-N-C Catalysts for the Oxygen Reduction Reaction. Molecules2024, 29, 771.
Lian, Y.; Xu, J.; Zhou, W.; Lin, Y.; Bai, J. Research Progress on Atomically Dispersed Fe-N-C Catalysts for the Oxygen Reduction Reaction. Molecules 2024, 29, 771.
Lian, Y.; Xu, J.; Zhou, W.; Lin, Y.; Bai, J. Research Progress on Atomically Dispersed Fe-N-C Catalysts for the Oxygen Reduction Reaction. Molecules2024, 29, 771.
Lian, Y.; Xu, J.; Zhou, W.; Lin, Y.; Bai, J. Research Progress on Atomically Dispersed Fe-N-C Catalysts for the Oxygen Reduction Reaction. Molecules 2024, 29, 771.
Abstract
The efficiency and performance of Proton Exchange Membrane Fuel Cells (PEMFCs) are primarily influenced by ORR electrocatalysts. In recent years, atomically dispersed met-al-nitrogen-carbon (M-N-C) catalysts have gained significant attention due to their high active center density, high atomic utilization, and high activity. These catalysts are now considered the preferred alternative to traditional noble metal electrocatalysts. The unique properties of M-N-C catalysts are anticipated to enhance the energy conversion efficiency and lower the manufac-turing cost of the entire system, thereby facilitating the commercialization and widespread ap-plication of fuel cell technology. This article initially delves into the origin of performance and degradation mechanisms of Fe-N-C catalysts from both experimental and theoretical perspectives. Building on this foundation, the focus shifts to strategies aimed at enhancing the activity and durability of atomically dispersed Fe-N-C catalysts. These strategies encompass the use of bi-metallic atoms, atomic clusters, heteroatoms (B, S, and P), and morphology regulation to optimize catalytic active sites. The article concludes by detailing the current challenges and future pro-spects of atomically dispersed Fe-N-C catalysts.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
