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

Journal Article · Sat Nov 15 00:00:00 EST 2014 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2014.07.015· OSTI ID:22420614

Lee, Cheol-Ho; Yun, Jin-Mun; Lee, Sungho; Jo, Seong Mu ^[1]; Yoo, Sung Jong; Cho, Eun Ae ^[2]; Khil, Myung-Seob ^[3]; Joh, Han-Ik ^[1]

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1. Carbon Convergence Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology, San 101, Eunha-ri, Bongdong-eup, Wanju-gun, Jeollabukdo 565-905 (Korea, Republic of)
2. Fuel Cell Research Center, Korea Institute of Science and Technology, 39-1, Hawolgok-dong, Seoul136-791 (Korea, Republic of)
3. Department of Organic Materials and Fiber Engineering, Chonbuk National University, Baekje-daero 567, Deokjin-dong, Deokjin-ku, Jeonju, Jeollabukdo 561-756 (Korea, Republic of)

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.

• OSTI ID: 22420614
• Journal Information: Materials Research Bulletin, Vol. 59; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ATOMS
BUILDING MATERIALS
CARBON BLACK
CARBON OXIDES
CLATHRATES
COMPARATIVE EVALUATIONS
DOPED MATERIALS
ELECTROCATALYSTS
GRAPHENE
MOLECULES
NANOSTRUCTURES
NITROGEN
REDUCING AGENTS
REDUCTION
SOLVENTS
SURFACES