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Characterization of Au/MnO/TiO for photocatalytic oxidation of carbon monoxide

Topics in Catalysis, ISSN: 1022-5528, Vol: 47, Issue: 3-4, Page: 109-115
2008
  • 10
    Citations
  • 0
    Usage
  • 25
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    10
    • Citation Indexes
      10
  • Captures
    25

Conference Paper Description

The Au/MnO/TiO catalyst was used for the photocatalytic oxidation of carbon monoxide. The catalytic activity of Au/MnO/TiO with low concentration of manganese (3-7 mol%) was much higher than that of Au/TiO. The surface of Au/MnO/TiO was characterized by XPS and Raman spectroscopy. While the main state ofmanganese in 13.8 mol% MnO /TiO was Mn species, Mn was the dominant species in the samples with below 6.5 mol% manganese. Raman spectroscopy revealed that the interaction between the MnO and TiO form Mn-O-Ti species in which the state of manganese was Mn . The Au particles also interacted with both MnO and TiO to modify the surface of them. In the case of the Au species, low loading of manganese produced the metallic Au and perimeter interfacial Au, whereas high loading showed the coexistence of three components which were metallic Au, perimeter interfacial Au, and oxidic Au. The catalytic active component was the metallic Au and perimeter interfacial Au 7 species, which were dispersed on TiO and Mn/TiO. © Springer Science+Business Media, LLC 2008.

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