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The influence of real structure of gold catalysts in the partial hydrogenation of acrolein

Mohr, Christian and Hofmeister, Herbert and Claus, Peter (2003):
The influence of real structure of gold catalysts in the partial hydrogenation of acrolein.
In: Journal of Catalysis, pp. 86-94, 213, (1), [Online-Edition: http://www.sciencedirect.com/science/article/B6WHJ-47BX61P-6...],
[Article]

Abstract

The hydrogenation of acrolein on supported gold catalysts has been used as test reaction to study several aspects of structure sensitivity, i.e., the dependence of activity and selectivity on the size of gold particles. We focused our work on the influence of the geometrical configuration of the supported gold nanoparticles, namely the occurrence of multiply twinned particles (MTPs) and the degree of rounding. A higher number of MTPs resulted in a lowering of selectivity to the desired product, allyl alcohol, as well as a lowering of the turnover frequency. The higher amount frequency of a gold catalyst supported on TiO2 compared to ZrO2 is attributed to a higher degree of rounding of the former.

Item Type: Article
Erschienen: 2003
Creators: Mohr, Christian and Hofmeister, Herbert and Claus, Peter
Title: The influence of real structure of gold catalysts in the partial hydrogenation of acrolein
Language: English
Abstract:

The hydrogenation of acrolein on supported gold catalysts has been used as test reaction to study several aspects of structure sensitivity, i.e., the dependence of activity and selectivity on the size of gold particles. We focused our work on the influence of the geometrical configuration of the supported gold nanoparticles, namely the occurrence of multiply twinned particles (MTPs) and the degree of rounding. A higher number of MTPs resulted in a lowering of selectivity to the desired product, allyl alcohol, as well as a lowering of the turnover frequency. The higher amount frequency of a gold catalyst supported on TiO2 compared to ZrO2 is attributed to a higher degree of rounding of the former.

Journal or Publication Title: Journal of Catalysis
Volume: 213
Number: 1
Uncontrolled Keywords: Acrolein hydrogenation; Degree of rounding; Gold catalysts; MTPs; Structure sensitivity
Divisions: 07 Department of Chemistry > Fachgebiet Technische Chemie > Technische Chemie II
07 Department of Chemistry > Fachgebiet Technische Chemie
07 Department of Chemistry
Date Deposited: 20 Mar 2009 09:02
Official URL: http://www.sciencedirect.com/science/article/B6WHJ-47BX61P-6...
Identification Number: doi:10.1016/S0021-9517(02)00043-X
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