Co/N co-doped graphene-like nanocarbon for highly efficient oxygen reduction electrocatalyst

作     者：Lei Liu Jian Zhang Wujun Ma Yunhui Huang 刘磊;张建;麻伍军;黄云辉

作者机构：School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China School of Materials Science and EngineeringNanyang Technological UniversitySingapore 639798Singapore School of ChemistryBiology and Materials EngineeringSuzhou University of Science and TechnologySuzhou 215009China 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2019年第62卷第3期

页      面：359-367页

核心收录：

学科分类：0808[工学-电气工程] 081705[工学-工业催化] 0806[工学-冶金工程] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China (51602113 and 51702111) China Postdoctoral Science Foundation (2016M590692) 

主　　题：graphene-like nanocarbon oxygen reduction reaction electrocatalyst zinc-air battery 

摘      要：The development of efficient and inexpensive graphene-based electrocatalysts is of great significance to promote the commercial application of fuel cell and metal-air batteries. In this paper, a new type of Co and N co-doped graphene-like nanocarbon(Co/N-GLC) material was prepared by nano-silicon protection and high temperature *** obtained Co/N-GLC catalyst not only has a similar morphology of graphene, but also possesses a high specific surface area(809 m2 g-1) with hierarchical porous structure(micropores/mesopores), and relative high active dopants *** properties endow it with a good oxygen reduction activity in alkaline media, which can be comparable to commercial Pt/C catalyst. Moreover, the assembled zinc-air batteries using Co/N-GLC catalyst as the air electrode display a better discharge performance and higher stability compared to that of Pt/C electrode. This work demonstrates that the prepared graphene-like carbon catalyst has a good prospect,which can replace noble metal catalyst at the cathode in metalair batteries.