CO oxidation over gold nanoparticles supported on TiO2 and TiO2-ZnO: Catalytic activity effects due to surface modification of TiO2 with ZnO

Kaushik Mallick, Mike S. Scurrell

Research output: Contribution to journalArticlepeer-review

70 Citations (Scopus)

Abstract

In situ reduction of gold ions, by a strong reducing agent facilitates the formation of gold nanoparticles on suitable metal oxide supports in such a way that a narrower size distribution and smaller particle size are obtained. Improved catalytic activity is also observed. Introducing zinc oxide to titanium oxide causes a surface modification of the titanium oxide and leads to a reduced catalytic activity for CO oxidation.

Original languageEnglish
Pages (from-to)527-536
Number of pages10
JournalApplied Catalysis A: General
Volume253
Issue number2
DOIs
Publication statusPublished - 28 Oct 2003
Externally publishedYes

Keywords

  • CO-oxidation
  • Embedded gold nanoparticles
  • FT-IR
  • In situ reduction
  • Raman spectra
  • Surface defect
  • Surface modification
  • TEM

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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