Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 3, Pages 1142-1151Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta03850a
Keywords
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Funding
- National Science Foundation of China [21273079]
- Guangdong Provincial National Science Foundation [S20120011275]
- Program for New Century Excellent Talents in University [NCET-12-0190]
- Pearl River Nova Program of Guangzhou City [2011J2200062]
- Fundamental Research Funds for the Central Universities of China [2014ZG0005]
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A new catalyst, cobalt carbonitride (CoCN) nanoparticles supported on nitrogen-doped graphenes (NG), was synthesized via a high temperature ammonia nitridation method. The catalyst has a core-shell structure with a highly active CoCN core and a protective cobalt oxide shell. Linear sweep voltammetry measurements show that the catalyst presents excellent activity in an oxygen reduction reaction compared to cobalt oxide supported on NG and commercial Pt/C catalysts, benefiting from the strong synergistic effect between CoCN and NG and the electronic modification of cobalt oxide by CoCN from within.
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