Journal
NANO RESEARCH
Volume 6, Issue 4, Pages 293-301Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-013-0307-9
Keywords
oxygen reduction reaction; nitrogen-doping; porous carbon
Categories
Funding
- 973 Program [2011CBA00503, 2011CB932403]
- 863 Program [2012AA03A609]
- Fundamental Research Funds for the Central Universities
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N-doped porous carbon materials have been prepared by a simple one-step pyrolysis of ethylenediaminetetraacetic acid (EDTA) and melamine in the presence of KOH and Co(NO3)(2)center dot 6H(2)O. The combination of the high specific area (1485 m(2)center dot g(-1)), high nitrogen content (10.8%) and suitable graphitic degree results in catalysts exhibiting high activity (with onset and half-wave potentials of 0.88 and 0.79 V vs the reversible hydrogen electrode (RHE), respectively) and four-electron selectivity for the oxygen reduction reaction (ORR) in alkaline medium-comparable to a commercial Pt/C catalyst, but far exceeding Pt/C in stability and durability. Owing to their superb ORR performance, low cost and facile preparation, the catalysts have great potential applications in fuel cells, metal-air batteries, and ORR-related electrochemical industries.
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