Ordered Hierarchically Porous Carbon Codoped with Iron and Nitrogen as Electrocatalyst for the Oxygen Reduction Reaction

作者: Chengwei Deng , Hexiang Zhong , Lan Yao , Sisi Liu , Zhuang Xu

DOI: 10.1002/CSSC.201402556

关键词:

摘要: N-doped carbon catalysts have attracted great attention as potential alternatives to expensive Pt-based used in fuel cells. Herein, an ordered hierarchically porous codoped with N and Fe (Fe-NOHPC) is prepared by evaporation-induced self-assembly process followed carbonization under ammonia. The soft template species promote the formation of structure facilitate oxygen reduction reaction (ORR).The catalyst possesses a large surface area (1172.5 m(2) g(-1) ) pore volume 1.03 cm(3) . Compared commercial 20% Pt/C, it exhibits better ORR catalytic activity higher stability well methanol tolerance alkaline electrolyte, which demonstrates its use cells nonprecious cathode catalyst. configuration, species, are believed correlate high activity.

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