Chinese Journal of Catalysis ›› 2018, Vol. 39 ›› Issue (9): 1453-1462.DOI: 10.1016/S1872-2067(18)63124-9

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An effective FeCl3 template assisted synthesis of nitrogen, sulfur and iron-tridoped carbon nanosheets from a protic salt for oxygen reduction electrocatalysis

Junjie Zhu, Qingxue Lai, Yingxuan Zhao, Jia Zhong, Yanyu Liang   

  1. Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu, China
  • Received:2017-11-15 Revised:2018-06-06 Online:2018-09-18 Published:2018-07-19
  • Contact: 10.1016/S1872-2067(18)63124-9
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21273114, 21771107), Natural Science Foundation of Jiangsu Province (BK20161484), the Fundamental Research Funds for the Central Universities (NE2015003), the "Six Talent Peaks Program" of Jiangsu Province (2013-XNY-010), a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institution, and the Foundation of Graduate Innovation Center in NUAA (kfjj20160613).

Abstract:

Doping heteroatoms into carbon matrix was an efficient strategy to achieve a high-performance non-precious metal oxygen reduction electrocatalyst. Herein, an in situ templated synthesis strategy has been demonstrated to fabricate nitrogen, sulfur and iron-tridoped mesoporous carbon nanosheets (NSFC) with FeCl3 as the two-dimensional template. And a protic salt was used as the carbon, nitrogen and sulfur source, which realized one-step preparation of catalyst materials and the co-doping of various heteroatoms simultaneously. As a result, the optimized NSFC catalyst possessed comparable catalytic activity and selectivity, while superior durability and methanol permeability resistance to commercial 30 wt% Pt/C catalyst in alkaline media. Such excellent performance should be ascribed to the efficient multiple-element doping into the large-specific-surface-area and highly stable carbon nanosheets realized by the in situ synthesis route with a novel FeCl3 template.

Key words: Oxygen reduction electrocatalyst, FeCl3 template, Protic salt, In situ doping, Synergic catalysis