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Indexed by:期刊论文

Date of Publication:2016-02-29

Journal:JOURNAL OF POWER SOURCES

Included Journals:SCIE、EI

Volume:306

Page Number:85-91

ISSN No.:0378-7753

Key Words:N-doping graphene; Oxygen reduction reaction; N-distribution; Structural defects

Abstract:N-doped graphene (NG) is a promising candidate for oxygen reduction reaction (ORR) in the cathode of fuel cells. However, the catalytic activity of NG is lower than that of commercial Pt/C in alkaline and acidic media. In this study, NG samples were obtained using urea as N source. The structural defects and N distribution in the samples were adjusted by regulating the pyrolysis temperature. The new NG type exhibited remarkable catalytic activities for ORR in both alkaline and acidic media. (C) 2015 Elsevier B.V. All rights reserved.