Kevin Morgan - Activation of alkanes by gold modified lanthanum oxide

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      Publication Details (including relevant citation   information):

      ChemCatChem,   Volume 3, Issue 2, Pages 394-398 (2011)

        J. Sa, M. Ace, J.J. Delgado, A.Goguet, C. Hardacre, K.   Morgan


      Functionalisation   of alkanes is much sought after for the production of fine and   bulk chemicals. In particular the oxidative activation of alkanes   and their conversion to ethene and propene has been studied   extensively due to the use of these alkenes in polymerisation   reactions. The greater reactivity of the products in comparison   with the reactants has proven to be a major issue in this   reaction as this can result in over oxidation, producing CO and   CO2 and, therefore, reducing the alkene yield.  Herein,   we demonstrate the first application of supported gold catalysts   for the direct activation of C2+ aliphatic alkanes   with oxygen to form alkenes. This   catalyst is particularly notable as it is highly active,   selective to propene and ethene and stable on stream over a 48   hours period. Maintaining cationic gold is thought to be critical   for the stability and this catalyst design provides the   possibility of applying gold based catalysts over a much wider   temperature range than has been reported.

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