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Selected Works of Wenyu Huang
Article
Size Effect of Ruthenium Nanoparticles in Catalytic Carbon Monoxide Oxidation
Nano Letters (2010)
  • Sang Hoon Joo, University of California - Berkeley
  • Jeong Y. Park, University of California - Berkeley
  • J. Russell Renzas, University of California - Berkeley
  • Derek R. Butcher, University of California - Berkeley
  • Wenyu Huang, University of California - Berkeley
  • Gabor A. Somorjai, University of California - Berkeley
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Abstract

Carbon monoxide oxidation over ruthenium catalysts has shown an unusual catalytic behavior. Here we report a particle size effect on CO oxidation over Ru nanoparticle (NP) catalysts. Uniform Ru NPs with a tunable particle size from 2 to 6 nm were synthesized by a polyol reduction of Ru(acac)3 precursor in the presence of poly(vinylpyrrolidone) stabilizer. The measurement of catalytic activity of CO oxidation over two-dimensional Ru NPs arrays under oxidizing reaction conditions (40 Torr CO and 100 Torr O2) showed an activity dependence on the Ru NP size. The CO oxidation activity increases with NP size, and the 6 nm Ru NP catalyst shows 8-fold higher activity than the 2 nm catalysts. The results gained from this study will provide the scientific basis for future design of Ru-based oxidation catalysts.

Disciplines
Publication Date
2010
Publisher Statement
Reprinted (adapted) with permission from Nano Lett., 2010, 10 (7), pp 2709–2713. Copyright 2010 American Chemical Society.
Citation Information
Sang Hoon Joo, Jeong Y. Park, J. Russell Renzas, Derek R. Butcher, et al.. "Size Effect of Ruthenium Nanoparticles in Catalytic Carbon Monoxide Oxidation" Nano Letters Vol. 10 Iss. 7 (2010)
Available at: http://works.bepress.com/wenyu_huang/14/