Nitrogen-doped and simultaneously reduced graphene oxide with superior dispersion as electrocatalysts for oxygen reduction reaction

Title
Nitrogen-doped and simultaneously reduced graphene oxide with superior dispersion as electrocatalysts for oxygen reduction reaction
Authors
이철호윤진문이성호조성무유성종조은애Myung-Seob Khil조한익
Keywords
Graphene; Fuel cells; electrocatalysts; oxygen reduction reaction; nitrogen doped graphene; Nanostructures; Structural materials; Surface; Intercalation reaction; Catalytic properties
Issue Date
2014-11
Publisher
Materials research bulletin
Citation
VOL 59, 145-149
Abstract
Nitrogen doped graphene oxide (Nr-GO) with properties suitable for electrocatalysts is easily synthesized using phenylhydrazine as a reductant at relatively low temperature. The reducing agent removes various oxygen functional groups bonded to graphene oxide and simultaneously dope the nitrogen atoms bonded with phenyl group all over the basal planes and edge sites of the graphene. The Nr-GO exhibits remarkable electrocatalytic activities for oxygen reduction reaction compared to the commercial carbon black and graphene oxide due to the electronic modification of the graphene structure. In addition, Nr-GO shows excellent dispersibility in various solvent due to the dopant molecules.
URI
http://pubs.kist.re.kr/handle/201004/47859
ISSN
00255408
Appears in Collections:
KIST Publication > Article
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