Lee, Cheol-Ho Yun, Jin-Mun Lee, Sungho Jo, Seong Mu Yoo, Sung Jong Cho, Eun Ae Khil, Myung-Seob Joh, Han-Ik 2024-01-20T08:32:49Z 2024-01-20T08:32:49Z 2021-09-02 2014-11 0025-5408 https://pubs.kist.re.kr/handle/201004/126183 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. (C) 2014 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD ELECTROCHEMICAL EXFOLIATION GRAPHITE OXIDE EFFICIENT FLAKES Nitrogen-doped and simultaneously reduced graphene oxide with superior dispersion as electrocatalysts for oxygen reduction reaction Article 10.1016/j.materresbull.2014.07.015 1 MATERIALS RESEARCH BULLETIN, v.59, pp.145 - 149 MATERIALS RESEARCH BULLETIN 59 145 149 scie scopus 000342956000024 2-s2.0-84904572451 Materials Science, Multidisciplinary Materials Science Article ELECTROCHEMICAL EXFOLIATION GRAPHITE OXIDE EFFICIENT FLAKES Nanostructures Structural materials Surface Intercalation reaction Catalytic properties