期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 8, 页码 2623-2627出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta13788k
关键词
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资金
- National Natural Science Foundation of China [21175012]
- Ministry of Science and Technology [2012DFR40240]
- Chinese Ministry of Education
We have prepared a nanoporous Fe-C-N catalyst with promising ORR activity via a combined chemical precipitation and pyrolysis method. Cyanamide, Fe(NO3)(3), and graphene oxide (GO) were used as the N, Fe, and C precursors, respectively. The synthesized Fe-C-N has a unique beanpod-shaped nanostructure with a specific surface area determined as 186 m(2) g(-1). Furthermore, a limiting current density of 6.1 mA cm(-2) in phosphate buffer solution (PBS pH 7.0) was achieved, which is nearly twice that obtained with commercial Pt@C. The Fe-C-N catalyst was used as the cathode of a fuel cell (FC) to recover energy from organic fuels in neutral solution.
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