Au nanoparticles enhance CO oxidation onto SnO2 nanobelt

L. H. Qian, K. Wang, H. T. Fang, Y. Li, X. L. Ma

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Au nanoparticles with a diameter of several nanometers (nm) attached onto metal oxides are considered as excellent catalytic materials. In this work, an individual SnO2 nanobelt is decorated by Au nanoparticles with a scale below 5 nm by means of conventional thermal evaporation. This novel Au/SnO2 complex nanostructure is configured to detect the occurrences of CO oxidations at low temperature region (<250 °C). Electrical property measurement is used to detect the captures and releases of oxygen species on the surface of SnO2 nanobelt, reflecting the occurrences of CO oxidations. As compared with the same SnO2 nanobelt without the architectures of Au nanoparticles, the enhanced CO oxidations on the surface of Au/SnO2 nanostructure are attributed to catalytic reactions improved by Au nanoparticles with small size and the introduction of Au/SnO2 interfaces.

Original languageEnglish (US)
Pages (from-to)132-136
Number of pages5
JournalMaterials Chemistry and Physics
Volume103
Issue number1
DOIs
StatePublished - May 15 2007

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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