Effect of deposition sequence of platinum and ruthenium particles into nanofibrous network of polyaniline-poly(styrene sulfonic acid) on electrocatalytic oxidation of methanol

Feng Jiin Liu, Li Ming Huang, Ten Chin Wen, Ching Fan Li, Shu Ling Huang, A. Gopalan

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29 Citations (Scopus)

Abstract

This study reports on the preparation of Pt- and Ru-based electrocatalysts through electrodeposition of Pt and Ru particles into the nanofibrous network of polyaniline (PANI)-poly(styrene sulfonic acid) (PSS). The sequence of electrodeposition of Pt and Ru particles was changed and the electrocatalysts, PANI-PSS-Pt-Ru and PANI-PSS-Ru-Pt, were obtained. Scanning electron microscopy (SEM), X-ray photoelectron microscopy (XPS), and cyclic voltammetry (CV) were employed to investigate the morphology, structural and electrochemical properties of the electrocatalysts, PANI-PSS-Pt-Ru and PANI-PSS-Ru-Pt. The distribution of Pt and Ru particles into PANI-PSS matrix was analyzed by the Auger depth profiles. The electrochemical behavior PANI-PSS-Pt-Ru and PANI-PSS-Ru -Pt and the electrocatalytic behavior toward oxidation of methanol were evaluated by cyclic voltammetry. PANI-PSS-Ru-Pt exhibited a superior electrocatalytic performance for methanol oxidation as compared to PANI-PSS-Pt-Ru.

Original languageEnglish
Pages (from-to)603-609
Number of pages7
JournalSynthetic Metals
Volume158
Issue number15
DOIs
Publication statusPublished - 2008 Sep 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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