Facile Synthesis of Fe3C@Graphene Hybrid Nanorods as an Efficient and Robust Catalyst for Oxygen Reduction Reaction

被引：14
|
作者：
Wang, Rui [1 ]
Li, Junsheng [2 ]
Cai, Shichang [1 ]
Zeng, Yan [1 ]
Zhang, Haining [1 ]
Cai, Haopeng [1 ]
Tang, Haolin [1 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
[2] Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, Wuhan 430070, Peoples R China
来源：
CHEMPLUSCHEM | 2016年 / 81卷 / 07期
基金：
中国国家自然科学基金;
关键词：
iron@carbon hybrids; heterogeneous catalysis; nanostructures; oxygen reduction reaction; NITROGEN-DOPED CARBON; GRAPHITIC LAYERS; NANOPARTICLES; GRAPHENE; CARBIDE; OXIDE; ELECTROCATALYST; NANOCRYSTALS; ELECTRODES; SURFACES;
D O I：
10.1002/cplu.201600215
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Robust and efficient catalysts for the oxygen reduction reaction (ORR) are required for the development of various energy storage and conversion devices. In this study, a durable and high-performance Fe3C@graphene ORR catalyst has been developed by the carbonization of urea- and agar-modified Fe2O3 nanorods. The influence of the carbonization temperature and annealing time on the activity and stability of the resulting Fe/C catalyst was studied in detail. The Fe/C catalyst synthesized at a temperature of 700 degrees C (holding time: 60min) showed better ORR activity and improved stability compared to a commercial Pt/C catalyst. The improved ORR catalytic activity of the catalyst is due to its high Fe3C content and its good durability results from the unique microstructure of the Fe3C@graphene hybrid
引用
收藏
页码：646 / 651
页数：6
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