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*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

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/TiO 2(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.

Original languageEnglish
Pages (from-to)19-24
Number of pages6
JournalCatalysis Letters
Volume120
Issue number1-2
DOIs
StatePublished - Jan 2008
Externally publishedYes

Keywords

  • CO oxidation
  • Gold
  • Mesoporous support
  • Sonochemical reduction

Fingerprint Dive into the research topics of 'Deposition of gold particles on mesoporous catalyst supports by sonochemical method, and their catalytic performance for CO oxidation'. Together they form a unique fingerprint.

Cite this