期刊
CHEMSUSCHEM
卷 8, 期 4, 页码 659-664出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201403222
关键词
composites; electrocatalysis; oxygen evolution reaction; spinel; synergetic effect
资金
- National Natural Science Foundation of China [21271009, 21471006]
- Program for New Century Excellent Talents in University [NCET 11-0888]
- Doctoral Fund of the Ministry of Education of China [20123424110002]
- National Undergraduate Training Programs for Innovation and Entrepreneurship [201410370043]
Abundant iron group metal oxides and their composites possess great potential in the application of electrochemical energy storage and conversion. In this work, we obtained Co-Fe-O composites/reduced graphene oxides (CFO/rGO) hybrid structures, engineered their compositions, phase, and structures by a facile hydrothermal route, and studied their composition-dependent activity for electrochemical oxygen evolution reaction (OER) in alkaline media. It is found that synergetic effects bring a clear decrease in overpotential and Tafel slope for CFO/rGO catalysts in comparison with monometallic composition/rGO catalysts. OER charge-transfer resistance is significantly reduced after Fe addition, indicating that the reaction barriers of CFO/rGO are reduced. The optimal CFO/rGO with Co-Fe ratio of 2:1 was identified. Our results on the synergetic effects of CFO/rGO enrich the understanding of iron-group composites for electrocatalytic applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据