典型文献
The regulation of coordination structure between cobalt and nitrogen on graphene for efficient bifunctional electrocatalysis in Zn-air batteries
文献摘要：
Electrocatalysts with atomically dispersed metal moieties are of importance in enhancing electrocatalysis for a specific reaction including oxygen reduction.However,it is still challenging to modulate the coor-dination structure of metal atoms with heteroatoms on carbon supports.Herein,an innovative and facile bridging strategy to regulate the coordination structure of cobalt with nitrogen atoms on reduced gra-phene oxide(rGO)sheets was developed by the interfacial complexation of amino-rich folic acid with cobalt ions on graphene oxide sheets and the subsequent thermal treatment.Typically,the actual coor-dination interaction between cobalt and nitrogen species was revealed by using X-ray absorption spec-troscopy(XAS),exhibiting the Co-N4 coordination structure well-dispersed on reduced graphene oxide.Such unique structure enables the efficient oxygen reduction and evolution reactions via the favorable adsorption and desorption of intermediates.With the enhanced bifunctional electrocatalytic activities,the fabricated Zn-air battery exhibited the excellent performance with large power density of 319.8 mW cm-2 and good long-term stability(over 300 h).This work establishes the synthesis strategy for bridging metal atom with heteroatom on graphene sheets to enhance the bifunctional electrocatalysis toward Zn-air batteries.
文献关键词：
中图分类号：
作者姓名：
Xinxin Shu;Maomao Yang;Miaomiao Liu;Wei Pan;Jintao Zhang
作者机构：
Key Laboratory for Colloid and Interface Chemistry of State Education Ministry,School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100,Shandong,China;College of Chemistry,Chemical Engineering and Materials Science,Shandong Normal University,Jinan 250014,Shandong,China;State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,Shandong,China
文献出处：
引用格式：
[1]Xinxin Shu;Maomao Yang;Miaomiao Liu;Wei Pan;Jintao Zhang-.The regulation of coordination structure between cobalt and nitrogen on graphene for efficient bifunctional electrocatalysis in Zn-air batteries)[J].能源化学,2022(05):213-221
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0.540213
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