Identification of single-site gold catalysis in acetylene hydrochlorination

Malta, G. et al. (2017) Identification of single-site gold catalysis in acetylene hydrochlorination. Science, 355(6332), pp. 1399-1403. (doi: 10.1126/science.aal3439) (PMID:28360324)

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There remains considerable debate over the active form of gold under operating conditions of a recently validated gold catalyst for acetylene hydrochlorination. We have performed an in situ x-ray absorption fine structure study of gold/carbon (Au/C) catalysts under acetylene hydrochlorination reaction conditions and show that highly active catalysts comprise single-site cationic Au entities whose activity correlates with the ratio of Au(I):Au(III) present. We demonstrate that these Au/C catalysts are supported analogs of single-site homogeneous Au catalysts and propose a mechanism, supported by computational modeling, based on a redox couple of Au(I)-Au(III) species. View Full Text

Item Type:Articles
Glasgow Author(s) Enlighten ID:Gibson, Dr Emma
Authors: Malta, G., Kondrat, S. A., Freakley, S. J., Davies, C. J., Lu, L., Dawson, S., Thetford, A., Gibson, E. K., Morgan, D. J., Jones, W., Wells, P. P., Johnston, P., Catlow, C. R. A., Kiely, C. J., and Hutchings, G. J.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Science
Publisher:American Association for the Advancement of Science
ISSN (Online):1095-9203
Copyright Holders:Copyright © 2017 American Association for the Advancement of Science
First Published:First published in Science 355(6332):1399-1403
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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