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Low temperature CO oxidation on Cu–Cu2O/TiO2catalyst prepared by photodeposition
- Source :
- Catalysis Science & Technology; June 2011, Vol. 1 Issue: 4 p601-608, 8p
- Publication Year :
- 2011
-
Abstract
- A series of Me/TiO2samples (Me = V, Cr, Mn, Fe, Co, Ni, Cu and Zn) with designed Me : TiO2ratio of 1 : 10 were prepared by a photodeposition method and studied for the oxidation of CO. The Cu/TiO2catalyst exhibited remarkably high activity and an overall CO oxidation could be achieved at <100 °C. The effects of activation temperatures, GHSV and initial CO concentration on CO oxidation over Cu/TiO2were further investigated. XRD, TEM, XPS-AES, H2-TPR and FTIR of CO adsorption were employed to characterize Cu/TiO2samples and the exact composition of Cu/TiO2prepared by photo-deposition was determined to be Cu–Cu2O/TiO2. Based on the catalytic and characterization results, the possible mechanism for CO oxidation over Cu–Cu2O/TiO2was discussed. Finally, the durability and deactivation of Cu–Cu2O/TiO2during CO oxidation was investigated in time-on-stream reaction.
Details
- Language :
- English
- ISSN :
- 20444753 and 20444761
- Volume :
- 1
- Issue :
- 4
- Database :
- Supplemental Index
- Journal :
- Catalysis Science & Technology
- Publication Type :
- Periodical
- Accession number :
- ejs25076767
- Full Text :
- https://doi.org/10.1039/c1cy00036e