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 journalArticle

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
JournalJournal of Alloys and Compounds
Volume471
Issue number1-2
DOIs
Publication statusPublished - 2009 Mar 5

Fingerprint

Electrooxidation
Sputtering
Methanol
Fuel cells
Nanocomposites
Thin films
Electrodes
Catalyst activity
Nanoparticles
Electron microscopy
Current density
X ray diffraction
Electric potential

Keywords

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

ASJC Scopus subject areas

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

Cite this

Co-sputtering growth and electro-oxidation properties of Pt-CuO nanocomposites for direct methanol thin film fuel cells. / Ahn, Hyo Jin; Shim, Hee Sang; Kim, Won Bae; Sung, Yung Eun; Seong, Tae Yeon.

In: Journal of Alloys and Compounds, Vol. 471, No. 1-2, 05.03.2009.

Research output: Contribution to journalArticle

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AU - Seong, Tae Yeon

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