One-pot synthesis of platinum nanoparticles embedded on reduced graphene oxide for oxygen reduction in methanol fuel cells

Hyung Wook Ha, In Young Kim, Seong Ju Hwang, Rodney S. Ruoff

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

A simple approach has been developed for the synthesis of Pt nanoparticles with uniform diameters of approximately 2.9 nm supported on reduced graphene oxide (RG-O) platelets via a modified polyol method. Compared to Johnson Matthey (JM) Pt/C (75 wt Pt) catalyst, the Pt/RG-O (70 wt Pt) composite showed much higher electrochemical surface area, greater catalytic activity towards the oxygen reduction reaction (ORR), and significantly better single cell polarization performance. The maximum power density of the Pt/RG-O composite was about 128 mW cm-2, an 11 greater than the JM Pt/C commercial catalyst.

Original languageEnglish
Pages (from-to)B70-B73
JournalElectrochemical and Solid-State Letters
Volume14
Issue number7
DOIs
Publication statusPublished - 2011

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

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