Co, N, S-Codoped Three-Dimensional Graphene as Efficient Bi-Functional Electrocatalyst for Oxygen Reduction/Hydrogen Evolution Reaction. Issue 12 (11th August 2017)

• Record Type: Journal Article
• Authors: Wang, Shumin; Qin, Yong; Liu, Yang; Chu, Fuqiang; Kong, Yong; Tao, Yongxin
• Is Part Of: Journal of the Electrochemical Society. Volume 164:Issue 12(2017)
• Page Start: F1110
• Page End: F1114
• Publication Date: 2017-08-11
• Subjects: Co, N, S-codoped graphene -- electrocatalyst -- hydrogen evolution reaction -- oxygen reduction reaction; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0671712jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : 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.