In Situ Self-Sacrificed Template Synthesis of Fe-N/G Catalysts for Enhanced Oxygen Reduction

• DOI: 10.1021/acsami.5b05834
• Publication Date: 2015-07-29T11:10:48Z
• Authors: Qingxue Lai; Qi Su; Qingwen Gao; Yanyu Liang; Yuxi Wang; Zhi Yang; Xiaogang Zhang; Jianping He; Hao Tong
• Keywords: Nanocapsules; Carbon fibers

To facilely prepare high-performance Fe-N/G oxygen reduction catalysts via a simple and controllable route from available low-cost materials is still challenge. Herein, we develop an in situ self-sacrificed template strategy to synthesize melamine, glucose, FeSO4·7H2O. Fe/Fe3C@graphitic carbon nanocapsules are uniformly formed on the NG surface create highly opened stable mesoporous framework structure. Furthermore, effectively doped N sites high active Fe-Nx synchronously constructed such structures, leading enhanced synergistic effect for ORR promising catalyst similar catalytic activity four-electron selectivity, but superior stability commercial 30 wt % Pt/C 0.1 M KOH solution under same loading.