Graphene supported platinum for oxygen reduction reaction electrocatalyst through a facile microwave-assisted polyol synthesisopen access
- Authors
- Kim, Tae-Hyun; Yoo, Jung Hun; Yi, Sung-Chul
- Issue Date
- Mar-2017
- Publisher
- KOREAN ASSOC CRYSTAL GROWTH, INC
- Keywords
- Proton exchange membrane fuel cell; Oxygen reduction reaction; Graphene supported platinum; Microwave-assisted polyol synthesis
- Citation
- JOURNAL OF CERAMIC PROCESSING RESEARCH, v.18, no.3, pp.261 - 264
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF CERAMIC PROCESSING RESEARCH
- Volume
- 18
- Number
- 3
- Start Page
- 261
- End Page
- 264
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/152777
- DOI
- 10.36410/jcpr.2017.18.3.261
- ISSN
- 1229-9162
- Abstract
- In this paper, reduced graphene oxide supported platinum (Pt/rGO) was prepared through a facile microwave-assisted polyol synthesis method. The effect of pH value in the solution during the synthesis on the physicochemical and electrochemical characteristics of the Pt/rGO was investigated. The pH value significantly affected the morphology and chemical state of the Pt nanoparticle due to different hydrolytic components of PtCl62- ions. As a result, the highest activity toward the oxygen reduction reaction (ORR) was obtained as 1.372 mA cm(-2) at 0.9 V from the Pt/rGO prepared from pH 12 which presented 2.63 and 2.09 times higher than the Pt/rGOs prepared at pH 10 and 8, respectively. It is clearly demonstrated that the pH value in the solution is critical for the electrocatalytic performance toward the ORR.
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