Infrared spectroscopic characterization of CO adsorption on gold-platinum nanoparticle catalysts

Jin Luo, Mott Derrick, Mathew M. Maye, Lingyan Wang, Peter N. Njoki, Chuan Jian Zhong

Research output: Contribution to journalConference article

Abstract

The exploration of gold and gold-platinum nanoparticles for catalysis of methanol oxidation and oxygen reduction reactions is interesting because of the unique catalytic properties of gold at nanoscale sizes. Gold and gold-platinum nanoparticles of 2-5 nm sizes with organic monolayer encapsulation were prepared. The nanoparticles were assembled on different supporting materials and thermally treated at different temperatures. Using CO as a probe molecule, the surface composition of the nanoparticles was characterized using transmission FTIR. The surface composition was then correlated with the electrocatalytic activities observed for methanol oxidation and oxygen reduction reactions. Some initial insights into the understanding of the relationship between the catalytic activity and the bimetallic surface composition are revealed. Implications of the findings to the design of gold-based bimetallic nanoparticle catalysts for fuel cell applications are also discussed. This is an abstract of a paper presented at the 228th ACS National Meeting (Philadelphia, PA, 8/22-26/2004).

Original languageEnglish (US)
Pages (from-to)INOR-127
JournalACS National Meeting Book of Abstracts
Volume228
Issue number1
StatePublished - Jan 1 2004
Externally publishedYes
EventAbstracts of Papers - 228th ACS National Meeting - Philadelphia, PA, United States
Duration: Aug 22 2004Aug 26 2004

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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