期刊
SUSTAINABLE ENERGY & FUELS
卷 1, 期 4, 页码 823-831出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7se00085e
关键词
-
资金
- National Natural Science Foundation [21573083]
- Program for New Century Excellent Talents in Universities of China [NCET-13-0237]
- Fundamental Research Funds for the Central University [2013TS136, 2014YQ009]
- 1000 Young Talent
- Huazhong University of Science and Technology (HUST)
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-SC0012704]
A simple one-pot synthetic strategy for the general preparation of nitrogen doped carbon supportedmetal/metal oxides (Co@CoO/NDC, Ni@NiO/NDC and MnO/NDC) derived from the complexing function of (ethylenediamine) tetraacetic acid (EDTA) is developed. EDTA serves not only as a resource to tune the morphology in terms of the complexation constant for M-EDTA, but also as a nitrogen and oxygen source for nitrogen doping and metal oxide formation, respectively. When the materials are used as electrocatalysts for the oxygen electrode reaction, Co@CoO/NDC-700 and MnO/NDC-700 show superior electrocatalytic activity towards the oxygen reduction reaction (ORR), while Co@CoO/NDC-700 and Ni@NiO/NDC-700 exhibit excellent oxygen evolution reaction (OER) activities. Taken together, the resultant Co@CoO/NDC-700 exhibits the best catalytic activity with favorable reaction kinetics and durability as a bi-functional catalyst for the ORR and OER, which is much better than the other two catalysts, Pt/C and Ir/C. Moreover, as an air electrode for a homemade zinc-air battery, Co@CoO/NDC700 shows superior cell performance with a highest power density of 192.1 mW cm(-2), the lowest charge-discharge overpotential and high charge-discharge durability over 100 h.
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