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论文类型：期刊论文
发表时间：2016-02-29
发表刊物：JOURNAL OF POWER SOURCES
收录刊物：SCIE、EI
卷号：306
页面范围：85-91
ISSN号：0378-7753
关键字：N-doping graphene; Oxygen reduction reaction; N-distribution; Structural defects
摘要：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.