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Journal Article

Structural Analysis of Au/TiO2Catalysts by Debye Function Analysis

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Vogel,  Walter
Fritz Haber Institute, Max Planck Society;

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Citation

Cunningham, D., Vogel, W., Sanchez, R. T., Tanakaa, K., & Haruta, M. (1999). Structural Analysis of Au/TiO2Catalysts by Debye Function Analysis. Journal of Catalysis, 183(1), 24-31. doi:10.1006/jcat.1998.2320.


Cite as: https://hdl.handle.net/21.11116/0000-0008-C74F-0
Abstract
Catalysts comprising between 1 and 3.6 wt% Au on TiO2have been studied by Debye function analysis. The structure of the deposited particles in Au/TiO2, prepared by deposition–precipitation, in the presence of magnesium citrate, was predominantly fcc cuboctahedral, with a size distribution between 3 and 4 nm. Optimized fits indicate a twin probability of ∼9%. Au/TiO2catalysts prepared by photodeposition were found to be much less active for CO oxidation than catalysts prepared by deposition–precipitation and comprised fcc cuboctahedral particles between 1 and 7 nm in size.