Graphene supported platinum for oxygen reduction reaction electrocatalyst through a facile microwave-assisted polyol synthesis

Tae Hyun Kim, Jung Hun Yoo, Sung Chul Yi

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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.

Original languageEnglish
Pages (from-to)261-264
Number of pages4
JournalJournal of Ceramic Processing Research
Volume18
Issue number3
Publication statusPublished - 2017 Jan 1

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Keywords

  • Graphene supported platinum
  • Microwave-assisted polyol synthesis
  • Oxygen reduction reaction
  • Proton exchange membrane fuel cell

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