Directly converting Fe-doped metal-organic frameworks into highly active and stable Fe-N-C catalysts for oxygen reduction in acid
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- 作者：Xiaojuan WangaAuthor Vitae ; Hanguang ZhangbAuthor Vitae ; Honghong LinaAuthor Vitae ; Shiva GuptabAuthor Vitae ; Cheng WangcAuthor Vitae ; Zixu TaoaAuthor Vitae ; He FuaAuthor Vitae ; Teng WangaAuthor Vitae ; Jie Zhenga ; zhengjie@pku.edu.cn" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Gang Wub ; gangwu@buffalo.edu" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Xingguo LiaAuthor Vitae
- 关键词：Metal&ndash ; organic frameworks ; Energy conversion ; Electrocatalysis ; Oxygen reduction ; Nonprecious metal catalysts ; Fuel cells
- 刊名：Nano Energy
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：25
- 期：Complete
- 页码：110-119
- 全文大小：2628 K
文摘
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A highly active and stable Fe-N-C catalyst with uniform atomic iron distribution is derived from ZIF-8.
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An O2-free environment for preparing the Fe-doped ZIF-8 precursor is found to be crucial.
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The Fe-N-C catalyst exhibited a high half-wave potential (0.82 V vs. RHE) and sufficient stability in acid.
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Graphitized carbon in Fe-N-C catalysts is not a necessity for high ORR activity.