Investigating catalytic properties of composite nanoparticle assemblies

Mathew M Maye, J. Luo, Y. Lou, N. K. Ly, W. B. Chan, E. Phillip, M. Hepel, C. J. Zhong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

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.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
Pages427-432
Number of pages6
Volume703
StatePublished - 2002
Externally publishedYes
EventNanophase and Nanocomposite Materials IV - Boston, MA, United States
Duration: Nov 26 2001Nov 29 2001

Other

OtherNanophase and Nanocomposite Materials IV
CountryUnited States
CityBoston, MA
Period11/26/0111/29/01

Fingerprint

Chemical activation
Nanoparticles
Catalysts
Monolayers
Composite materials
Electrooxidation
Carbon Monoxide
Polymer matrix
Polymer films
Gold
Nanocrystals
Cyclic voltammetry
Atomic force microscopy
Catalyst activity
Electrodes
Substrates

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Maye, M. M., Luo, J., Lou, Y., Ly, N. K., Chan, W. B., Phillip, E., ... Zhong, C. J. (2002). Investigating catalytic properties of composite nanoparticle assemblies. In Materials Research Society Symposium - Proceedings (Vol. 703, pp. 427-432)

Investigating catalytic properties of composite nanoparticle assemblies. / Maye, Mathew M; Luo, J.; Lou, Y.; Ly, N. K.; Chan, W. B.; Phillip, E.; Hepel, M.; Zhong, C. J.

Materials Research Society Symposium - Proceedings. Vol. 703 2002. p. 427-432.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Maye, MM, Luo, J, Lou, Y, Ly, NK, Chan, WB, Phillip, E, Hepel, M & Zhong, CJ 2002, Investigating catalytic properties of composite nanoparticle assemblies. in Materials Research Society Symposium - Proceedings. vol. 703, pp. 427-432, Nanophase and Nanocomposite Materials IV, Boston, MA, United States, 11/26/01.
Maye MM, Luo J, Lou Y, Ly NK, Chan WB, Phillip E et al. Investigating catalytic properties of composite nanoparticle assemblies. In Materials Research Society Symposium - Proceedings. Vol. 703. 2002. p. 427-432
Maye, Mathew M ; Luo, J. ; Lou, Y. ; Ly, N. K. ; Chan, W. B. ; Phillip, E. ; Hepel, M. ; Zhong, C. J. / Investigating catalytic properties of composite nanoparticle assemblies. Materials Research Society Symposium - Proceedings. Vol. 703 2002. pp. 427-432
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AB - 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.

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