Highly active Au/TiO2 catalysts for low-temperature CO oxidation: preparation, conditioning and stability

Using a modified depositionprecipitation procedure and a new reductive conditioning method, Au/TiO2 catalysts with small metallic Au particles (<2 nm) and a very high activity for low-temperature CO oxidation were prepared. The particles are stable during reaction; a decreasing activity is caused...

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Bibliographic Details
Published in:	Catalysis letters Vol. 89; no. 1-2; pp. 109 - 114
Main Authors:	SCHUMACHER, B, PLZAK, V, KINNE, M, BEHM, R. J
Format:	Journal Article
Language:	English
Published:	Dordrecht Springer 01-07-2003 Springer Nature B.V
Subjects:	Catalysis Catalysts Catalysts: preparations and properties Chemistry Conditioning Exact sciences and technology General and physical chemistry Gold Low temperature Oxidation Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Titanium dioxide Gold kinetic measurements particle size Stability CO oxidation DRIFTS Au/TiO2 Transition metal XRD Supported catalyst Heterogeneous catalysis Transition metal compounds catalyst deactivation catalyst activation Preparation Oxidation XPS Carbon monoxide Titanium oxide TEM Low temperature selective CO oxidation
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Summary:	Using a modified depositionprecipitation procedure and a new reductive conditioning method, Au/TiO2 catalysts with small metallic Au particles (<2 nm) and a very high activity for low-temperature CO oxidation were prepared. The particles are stable during reaction; a decreasing activity is caused by the accumulation of by-products on the catalyst.
ISSN:	1011-372X 1572-879X
DOI:	10.1023/A:1024731812974