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On an Easy Way to Prepare Fe, S, N Tri-Doped Mesoporous Carbon Materials as Efficient Electrocatalysts for Oxygen Reduction Reaction

Authors
  • Liu, Sa1
  • Liu, Liwen1
  • Chen, Xiaowen1
  • Yang, Zheng1
  • Li, Mengli1
  • Wang, Yan1
  • Lv, Wenjie1
  • Zhu, Ping1
  • Zhao, Xinsheng2
  • Wang, Guoxiang3
  • 1 Jiangsu Normal University, School of Chemistry and Materials Science, Xuzhou, 221116, People’s Republic of China , Xuzhou (China)
  • 2 Jiangsu Normal University, School of Physics and Electronic Engineering, Xuzhou, 221116, People’s Republic of China , Xuzhou (China)
  • 3 Dalian Polytechnic University, School of Light Industry & Chemical Engineering, Dalian, 116034, People’s Republic of China , Dalian (China)
Type
Published Article
Journal
Electrocatalysis
Publisher
Springer US
Publication Date
Nov 03, 2018
Volume
10
Issue
1
Pages
72–81
Identifiers
DOI: 10.1007/s12678-018-0496-9
Source
Springer Nature
Keywords
License
Yellow

Abstract

Recently, precious metal-free and heteroatom functionalized carbon materials are widely considered as the promising candidates for oxygen reduction reaction (ORR). However, it is still a challenge to controllably prepare the carbon-based electrocatalysts with desirable activities. Herein, we demonstrate a simple strategy to synthesize the Fe/S/N tri-doped mesoporous carbon (Fe-S,N-C) materials as electrocatalysts for ORR. The resultant Fe-S,N-C catalyst possesses high content of pyridinic N (also including Fe-Nx), graphitic N atoms, thiophene S atoms, and abundant defects, as well as the high surface area and desirable mesoporous microstructure. Thus, in alkaline medium, the Fe-S,N-C shows an expected high ORR activity with a onset potential of 0.95 V and half-wave potential of 0.83 V. Meanwhile, the ORR proceeded on Fe-S,N-C via the four-electron transfer pathway. What is more, the as-prepared catalyst shows excellent electrocatalytic stability and good methanol tolerance, suggesting its potential applications in fuel cells and metal-air battery. Graphical AbstractA high-performance Fe/S/N tri-doped mesoporous carbon-based electrocatalyst with abundant defects and active sites has been successfully prepared by one easy way for ORR in alkaline medium.

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