AtomicFe-N4sitesonelectrospunhierarchicalporouscarbonnanofibersasanefficientelectrocatalystforoxygenreductionreaction

被引：3

作者：

Ruiqin Zhong ^{[1
]}

Chenxu Zhi ^{[1
]}

Yingxiao Wu ^{[2
]}

Zibin Liang ^{[2
]}

Hassina Tabassum ^{[2
]}

Hao Zhang ^{[2
]}

Tianjie Qiu ^{[2
]}

Song Gao ^{[2
]}

Jinming Shi ^{[2
]}

Ruqiang Zou ^{[2
]}

机构：

[1] State Key Laboratory of Heavy Oil Processing, China University of Petroleum

[2] Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering,Peking University

来源：

Chinese Chemical Letters | 2020年 / 31卷 / 06期

关键词：

Atomically dispersed metal sites; Metal-organic frameworks; Electrospinning; Oxygen reduction reaction; Electrocatalysis;

D O I：

暂无

中图分类号：

O643.36 [催化剂]; TM911.4 [燃料电池];

学科分类号：

081705 ; 0808 ;

摘要：

Porous carbon materials doped with atomically dispersed metal sites（ADMSs） are promising electrocatalysts for oxygen reduction reaction（ORR） electrocatalysis.In this work,we fabricated hierarchical porous nitrogen-doped carbon nanofibers with atomically dispersed Fe-N4 sites by carbonization of electrospinning iron-based metal-organic frameworks（MOFs）/polyacrylonitrile nanofibers for ORR electrocatalysis.Remarkably,the re sultant carbon nanofibers with atomically dispersed FeN4 sites exhibit extraordinary electrochemical performance with an onset potential of 0.994 V and a halfwave potential of 0.876 V in alkaline electrolyte,comparable to the benchmark commercial Pt/C catalyst.The high catalytic performance is originated from the unique hierarchically porous 1 D carbon structure and abundant highly active atomically dispersed Fe-N4 sites.

引用

页码：1588 / 1592

页数：5

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