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Investigating Catalytic Properties of Composite Nanoparticle Assemblies

Published online by Cambridge University Press:  15 March 2011

M.M. Maye ,
J. Luo ,
Y. Lou ,
N. K. Ly ,
W.-B. Chan ,
E. Phillip ,
M. Hepel  and
C.J. Zhong
M.M. Maye
Affiliation:
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902
J. Luo
Affiliation:
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902
Y. Lou
Affiliation:
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902
N. K. Ly
Affiliation:
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902
W.-B. Chan
Affiliation:
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902
E. Phillip
Affiliation:
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902
M. Hepel
Affiliation:
Department of Chemistry, State University of New York at Potsdam, Potsdam, NY 13676
C.J. Zhong
Affiliation:
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902
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Abstract

We present herein recent findings of an investigation of catalyst assembly and activation using metallic nanoparticles encapsulated with organic monolayers. Gold nanocrystals (2∼5 nm) encapsulated with thiolate monolayers assembled on electrode surfaces, were found to be catalytically active towards electrooxidation of CO and MeOH upon activation. The activation involved partial removal of the encapsulating thiolates and the formation of surface oxygenated species. A polymeric film was also used as a substrate for the assembly of the nanoparticle catalysts. When the polymer matrix was doped with small amounts of Pt, a remarkable catalytic activity was observed. These catalysts were characterized utilizing cyclic voltammetry and atomic force microscopy.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 703: Symposia U/V – Nanophase and Nanocomposite Materials IV , 2001 , V10.6
Copyright
Copyright © Materials Research Society 2002

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References

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