Journal
NANOSCALE
Volume 9, Issue 22, Pages 7373-7379Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nr00930e
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Funding
- Ministry of Science, ICT & Future Planning [2013 M3A6B1078882]
- research and development program of KIER from Republic of Korea [B7-2425]
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In this study, we report self-assembled nitrogen-doped fullerenes (N-fullerene) as non-precious catalysts, which are active for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), and thus applicable for energy conversion and storage devices such as fuel cells and metal-air battery systems. We screen the best N-fullerene catalyst at the nitrogen doping level of 10 at%, not at the previously known doping level of 5 or 20 at% for graphene. We identify that the compressive surface strain induced by doped nitrogen plays a key role in the fine-tuning of catalytic activity.
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