Sulfonation of graphene nanosheet-supported platinum via a simple thermal-treatment toward its oxygen reduction activity in acid medium

T.-F. Hung, B. Wang, C.-W. Tsai, M.-H. Tu, G.-X. Wang, R.-S. Liu, Din-ping Tsai, M.-Y. Lo, D.-S. Shy, X.-K. Xing

Research output: Journal article publicationJournal articleAcademic researchpeer-review

22 Citations (Scopus)

Abstract

The sulfonated graphene nanosheet-supported platinum (s-Pt/GNS) catalyst synthesized via a simple thermal-treatment in the presence of concentrated sulfuric acid was reported in this study. Influence of sulfonation on its structural, surface, morphological and catalytic characteristics of as-prepared s-Pt/GNS was explored using X-ray diffractometer, Raman spectrometry, zeta potential analyzer, scanning and transmission electron microscopes, and cyclic voltammetry. For the oxygen reduction reaction, the current density generated from the s-Pt/GNS at 0.6 V was approximately 32.5 A g-1 Pt, which was about 193% higher than that of original Pt/GNS. © 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)14205-14210
Number of pages6
JournalInternational Journal of Hydrogen Energy
Volume37
Issue number19
DOIs
Publication statusPublished - 1 Oct 2012
Externally publishedYes

Keywords

  • Graphene
  • In situ chemical reaction
  • Oxygen reduction reaction
  • Platinum catalyst
  • Sulfonation
  • Thermal treatment

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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