Citation: Shiming Zhang, Heyou Zhang, Weimin Zhang, Xianxia Yuan, Shengli Chen, Zi-Feng Ma. Induced growth of Fe-N_x active sites using carbon templates[J]. Chinese Journal of Catalysis, ;2018, 39(8): 1427-1435. doi: 10.1016/S1872-2067(18)63107-9 shu

Induced growth of Fe-N_x active sites using carbon templates

a Department of Chemical Engineering, Shanghai Electrochemical Energy Devices Research Center, Shanghai Jiao Tong University, Shanghai 200240, China;
b College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Key Laboratory of Analytical Chemistry for Biology and Medicine(Ministry of Education), Wuhan University, Wuhan 430072, Hubei, China;
c Sinopoly Battery Research Center, Shanghai Sinopoly Jiahua Battery Technology Co., Ltd., Shanghai 200241, China

Received Date: 4 January 2018
Revised Date: 27 May 2018

Fund Project: This work was supported by the National Natural Science Foundation of China (21606149, 2163308), the China Postdoctoral Science Foundation (2016M591678), the Shanghai Rising-Star Program (18QB1404400), and the Shanghai Scientific Research Project (18511110803).

Highly active Fe-N_x sites that effectively improve the performance of non-precious metal electrocatalysts for oxygen reduction reactions (ORRs) are desirable. Herein, we propose a strategy for introducing a carbon template into a melamine/Fe-salt mixture to inductively generate highly active Fe-N_x sites for ORR. Using ⁵⁷Fe Mössbauer spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction, we studied the structural composition of the Fe and N co-doped carbon catalysts. Interestingly, the results showed that this system not only converted inactive Fe and Fe-carbides into active Fe-N₄ and other Fe-nitrides, but also improved their intrinsic activities.
- Oxygen reduction reaction,
- Non-precious-metal electrocatalyst,
- Fe-N_x,
- Induced growth,
- Carbon template
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Induced growth of Fe-Nx active sites using carbon templates

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Induced growth of Fe-N_x active sites using carbon templates