Catalysis Letters

, Volume 120, Issue 1, pp 19–24

Deposition of Gold Particles on Mesoporous Catalyst Supports by Sonochemical Method, and their Catalytic Performance for CO Oxidation

  • Nina Perkas
  • Ziyi Zhong
  • Judit Grinblat
  • Aharon Gedanken
Article

DOI: 10.1007/s10562-007-9257-8

Cite this article as:
Perkas, N., Zhong, Z., Grinblat, J. et al. Catal Lett (2008) 120: 19. doi:10.1007/s10562-007-9257-8

Abstract

Supported gold catalysts on the mesoporous (MSP) metal oxides were prepared by a one-step, ultrasound-assisted reduction method, and characterized by XRD, HRTEM, EDX, BET, and XPS analysis. Their catalytic activities were examined in the oxidation of CO. Compared to the Au/Fe2O3(MSP) catalyst, the Au/TiO2(MSP) and Au/Fe2O3-TiO2(MSP) catalysts exhibited higher catalytic activity in the oxidation of CO at low temperatures. The high catalytic activity of Au/TiO2(MSP) was attributed to the metallic state of the gold nanoparticles, their small size (2–2.5 nm), and their high dispersion on the catalyst support.

Keywords

Sonochemical reduction Gold Mesoporous support CO oxidation 

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Nina Perkas
    • 1
  • Ziyi Zhong
    • 2
  • Judit Grinblat
    • 1
  • Aharon Gedanken
    • 1
  1. 1.Department of Chemistry and Kanbar Laboratory for NanomaterialsBar-Ilan University Center for Advanced Materials and Nanotechnology, Bar-Ilan UniversityRamat-GanIsrael
  2. 2.Institute of Chemical and Engineering and SciencesJurong IslandSingapore

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