Lopez-Sanchez, J. A., Morisse, C., Winfield, J. M., Krumm, B., Klapötke, T. M. and Lennon, D. (2015) The preparation of a residue-free, alumina-supported gold catalyst by decomposition of an azido-gold(III) complex and an evaluation of the effectiveness of the catalyst for the hydrogenation of propyne. Zeitschrift für Anorganische und Allgemeine Chemie, 641(3-4), pp. 694-698. (doi: 10.1002/zaac.201400506)
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Abstract
A 1 % w/w alumina-supported gold catalyst is described that is prepared from the impregnation of alumina with a solution of ammonium tetraazidoaurate(III), NH4[Au(N3)4]. Decomposition of the azide precursor leads to a residue-free catalyst comprised of well-dispersed gold particles. This novel material is tested for propyne hydrogenation using pulse-flow techniques and displays 100 % selectivity to the partial hydrogenation product, propene, albeit in the presence of a large retention of hydrocarbon by the catalyst. The latter characteristic is associated with a support-mediated deactivation pathway. Comparing catalytic performance with a 1.45 % w/w Au/TiO2 reference catalyst indicates that chlorine-free precursor compounds are not required to enhance catalytic activity for this particular reaction.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Lennon, Professor David and Winfield, Professor John and Morisse, Mr Clement |
| Authors: | Lopez-Sanchez, J. A., Morisse, C., Winfield, J. M., Krumm, B., Klapötke, T. M., and Lennon, D. |
| College/School: | College of Science and Engineering > School of Chemistry |
| Journal Name: | Zeitschrift für Anorganische und Allgemeine Chemie |
| Publisher: | Wiley - V C H Verlag GmbH & Co. KGaA |
| ISSN: | 0044-2313 |
| ISSN (Online): | 1521-3749 |
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