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Modulating the Electronic Structure of FeCo Nanoparticles in N‐Doped Mesoporous Carbon for Efficient Oxygen Reduction Reaction

The development of highly efficient and stable oxygen reduction electrocatalysts and revealing their underlying catalytic mechanism are crucial in expanding the applications of metal‐air batteries. Herein, an excellent FeCo alloy nanoparticles (NPs)‐decorated N‐doped mesoporous carbon electrocatalys...

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Autores principales: Zhu, Guihua, Yang, Haoyu, Jiang, Ying, Sun, Ziqi, Li, Xiaopeng, Yang, Jianping, Wang, Haifeng, Zou, Rujia, Jiang, Wan, Qiu, Pengpeng, Luo, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9130874/
https://www.ncbi.nlm.nih.gov/pubmed/35322604
http://dx.doi.org/10.1002/advs.202200394
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author Zhu, Guihua
Yang, Haoyu
Jiang, Ying
Sun, Ziqi
Li, Xiaopeng
Yang, Jianping
Wang, Haifeng
Zou, Rujia
Jiang, Wan
Qiu, Pengpeng
Luo, Wei
author_facet Zhu, Guihua
Yang, Haoyu
Jiang, Ying
Sun, Ziqi
Li, Xiaopeng
Yang, Jianping
Wang, Haifeng
Zou, Rujia
Jiang, Wan
Qiu, Pengpeng
Luo, Wei
author_sort Zhu, Guihua
collection PubMed
description The development of highly efficient and stable oxygen reduction electrocatalysts and revealing their underlying catalytic mechanism are crucial in expanding the applications of metal‐air batteries. Herein, an excellent FeCo alloy nanoparticles (NPs)‐decorated N‐doped mesoporous carbon electrocatalyst (FeCo/NC) for oxygen reduction reaction, prepared through the pyrolysis of a dual metal containing metal‐organic framework composite scaffold is reported. Benefiting from the highly exposed bimetal active sites and the carefully designed structure, the Fe(0.25)Co(0.75)/NC‐800 catalyst exhibits a promising electrocatalytic activity and a superior durability, better than those of the state‐of‐the‐art catalysts. Suggested by both the X‐ray absorption fine structures and the density functional theoretical calculation, the outstanding catalytic performance is originated from the synergistic effects of the bimetallic loading in NC catalysts, where the electronic modulation of the Co active sites from the nearby Fe species leads to an optimized binding strength for reaction intermediates. This work demonstrates a class of highly active nonprecious metals electrocatalysts and provides valuable insights into investigating the structure–performance relationship of transition metal‐based alloy catalysts.
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spelling pubmed-91308742022-05-26 Modulating the Electronic Structure of FeCo Nanoparticles in N‐Doped Mesoporous Carbon for Efficient Oxygen Reduction Reaction Zhu, Guihua Yang, Haoyu Jiang, Ying Sun, Ziqi Li, Xiaopeng Yang, Jianping Wang, Haifeng Zou, Rujia Jiang, Wan Qiu, Pengpeng Luo, Wei Adv Sci (Weinh) Research Articles The development of highly efficient and stable oxygen reduction electrocatalysts and revealing their underlying catalytic mechanism are crucial in expanding the applications of metal‐air batteries. Herein, an excellent FeCo alloy nanoparticles (NPs)‐decorated N‐doped mesoporous carbon electrocatalyst (FeCo/NC) for oxygen reduction reaction, prepared through the pyrolysis of a dual metal containing metal‐organic framework composite scaffold is reported. Benefiting from the highly exposed bimetal active sites and the carefully designed structure, the Fe(0.25)Co(0.75)/NC‐800 catalyst exhibits a promising electrocatalytic activity and a superior durability, better than those of the state‐of‐the‐art catalysts. Suggested by both the X‐ray absorption fine structures and the density functional theoretical calculation, the outstanding catalytic performance is originated from the synergistic effects of the bimetallic loading in NC catalysts, where the electronic modulation of the Co active sites from the nearby Fe species leads to an optimized binding strength for reaction intermediates. This work demonstrates a class of highly active nonprecious metals electrocatalysts and provides valuable insights into investigating the structure–performance relationship of transition metal‐based alloy catalysts. John Wiley and Sons Inc. 2022-03-24 /pmc/articles/PMC9130874/ /pubmed/35322604 http://dx.doi.org/10.1002/advs.202200394 Text en © 2022 The Authors. Advanced Science published by Wiley‐VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Zhu, Guihua
Yang, Haoyu
Jiang, Ying
Sun, Ziqi
Li, Xiaopeng
Yang, Jianping
Wang, Haifeng
Zou, Rujia
Jiang, Wan
Qiu, Pengpeng
Luo, Wei
Modulating the Electronic Structure of FeCo Nanoparticles in N‐Doped Mesoporous Carbon for Efficient Oxygen Reduction Reaction
title Modulating the Electronic Structure of FeCo Nanoparticles in N‐Doped Mesoporous Carbon for Efficient Oxygen Reduction Reaction
title_full Modulating the Electronic Structure of FeCo Nanoparticles in N‐Doped Mesoporous Carbon for Efficient Oxygen Reduction Reaction
title_fullStr Modulating the Electronic Structure of FeCo Nanoparticles in N‐Doped Mesoporous Carbon for Efficient Oxygen Reduction Reaction
title_full_unstemmed Modulating the Electronic Structure of FeCo Nanoparticles in N‐Doped Mesoporous Carbon for Efficient Oxygen Reduction Reaction
title_short Modulating the Electronic Structure of FeCo Nanoparticles in N‐Doped Mesoporous Carbon for Efficient Oxygen Reduction Reaction
title_sort modulating the electronic structure of feco nanoparticles in n‐doped mesoporous carbon for efficient oxygen reduction reaction
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9130874/
https://www.ncbi.nlm.nih.gov/pubmed/35322604
http://dx.doi.org/10.1002/advs.202200394
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