Co-sputtering growth and electro-oxidation properties of Pt-CuO nanocomposites for direct methanol thin film fuel cells

Hyo Jin Ahn, Hee Sang Shim, Won Bae Kim, Yung Eun Sung, Tae Yeon Seong

Research output: Contribution to journalLetter

16 Citations (Scopus)

Abstract

We investigated the catalytic activity of Pt-incorporated CuO electrodes for thin-film fuel cells. The electron microscopy and X-ray diffraction results show the formation of Pt nanoparticles embedded within an amorphous CuO matrix (Pt-CuO nanocomposite). The Pt-CuO nanocomposite electrode gives a much higher current density than a Pt only electrode at an accelerating voltage of 0.67 V in a mixture of 2.0 M CH3OH and 0.5 M H2SO4 solutions. The enhanced catalytic activity of the nanocomposite electrode is attributed to the increased active surface area, due to the formation of Pt nanoparticles, and the amorphous CuO supporting matrix.

Original languageEnglish
Pages (from-to)L39-L42
JournalJournal of Alloys and Compounds
Volume471
Issue number1-2
DOIs
Publication statusPublished - 2009 Mar 5

Keywords

  • Co-sputtering
  • CuO
  • Nanocomposite
  • Pt
  • Thin-film fuel cell

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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