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Reactivation of a Carbon-supported Gold Catalyst for the Hydrochlorination of Acetylene

Abstract

Acetylene hydrochlorination using a carbon-supported gold catalyst is studied. Reactivation of the catalyst is demonstrated using a brief treatment of the spent catalyst with boiling aqua regia and the process of reactivation and deactivation is characterised using X-ray photoelectron spectroscopy. Deactivation is considered to be due to loss of Au3+ which is restored by the aqua regia treatment.

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Acknowledgements

We acknowledge the support of the Engineering and Physical Sciences Research Council (EPSRC) of the UK and Johnson Matthey plc (project ATHENA) and the European Union (project AURICAT; Contract HPRN-CT-2002-00174). In addition we thank the World Gold Council who have provided sponsorship for the studentship of MC under the GROW scheme.

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Correspondence to Graham J. Hutchings.

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Conte, M., Carley, A.F. & Hutchings, G.J. Reactivation of a Carbon-supported Gold Catalyst for the Hydrochlorination of Acetylene. Catal Lett 124, 165–167 (2008). https://doi.org/10.1007/s10562-008-9583-5

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Keywords

  • Gold catalysis
  • Catalyst reactivation
  • Acetylene hydrochlorination