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  Size- and Support-Dependent Electronic and Catalytic Properties of Au0/Au3+ Nanoparticles Synthesized from Block Copolymer Micelles

Roldan Cuenya, B., Baeck, S.-H., Jaramillo, T. F., & McFarland, E. W. (2003). Size- and Support-Dependent Electronic and Catalytic Properties of Au0/Au3+ Nanoparticles Synthesized from Block Copolymer Micelles. Journal of the American Chemical Society, 125(42), 12928-12934. doi:/10.1021/ja036468u.

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 Creators:
Roldan Cuenya, Beatriz1, Author           
Baeck, Sung-Hyeon1, Author
Jaramillo, Thomas F1, Author
McFarland, Eric W.1, Author
Affiliations:
1Chemical Engineering Department, University of California, Santa Barbara, California, ou_persistent22              

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 Abstract: Supported Au nanoclusters synthesized from diblock copolymer micelles can be reliably prepared with well-controlled sizes and dispersions. For particles with diameters between approximately 1 and 6 nm, the particle size and the support were found to strongly influence the oxygen reactivity, the formation and stabilization of a metal-oxide, and the catalytic activity for electrooxidation of carbon monoxide. The smallest particles studied (1.5 nm) were the most active for electrooxidation of CO and had the largest fraction of oxygen associated with gold at the surface as measured by the Au3+/Au0 X-ray photoemission intensities. Conducting and semiconducting substrates, ITO-coated glass and TiO2, respectively, were associated with greater stabilization of Au3+ oxide as compared to insulating, SiO2, substrates.

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Language(s): eng - English
 Dates: 2003-06-022003-09-262003-10-01
 Publication Status: Issued
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: /10.1021/ja036468u
 Degree: -

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Title: Journal of the American Chemical Society
  Other : JACS
  Abbreviation : J. Am. Chem. Soc.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: 7 Volume / Issue: 125 (42) Sequence Number: - Start / End Page: 12928 - 12934 Identifier: ISSN: 0002-7863
CoNE: https://pure.mpg.de/cone/journals/resource/954925376870