• 文献标题:   Co,N,S-Codoped Three-Dimensional Graphene as Efficient Bi-Functional Electrocatalyst for Oxygen Reduction/Hydrogen Evolution Reaction
  • 文献类型:   Article
  • 作  者:   WANG SM, QIN Y, LIU Y, CHU FQ, KONG Y, TAO YX
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF THE ELECTROCHEMICAL SOCIETY
  • ISSN:   0013-4651 EI 1945-7111
  • 通讯作者地址:   Changzhou Univ
  • 被引频次:   3
  • DOI:   10.1149/2.0671712jes
  • 出版年:   2017

▎ 摘  要

Co,N,S-codoped three-dimensional graphene (Co,N,S/3DG) has been fabricated using Co(SCN)(2) as the precursor. It has been found that Co, N, S/3DG is a highly efficient bi-functional electrocatalyst for oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER). It exhibits the high catalytic activity comparable to the Pt/C catalyst toward ORR, and the low overpotential of 260 mV to afford the current density of 10 mA cm(-2) toward HER. The doping of S can promote the electrocatalytic performance of Co,N-codoped graphene due most likely to the defects induced by sulfur atom. The results provide new clues to design multi-functional electrocatalyst in energy storage and conversion. (C) 2017 The Electrochemical Society. All rights reserved.