Highly selective Pd/titanate nanotube catalysts for the double-bond migration reaction
Torrente-Murciano, Laura, Lapkin, Alexei A., Bavykin, Dmitry V., Walsh, Frank C. and Wilson, Karen (2007) Highly selective Pd/titanate nanotube catalysts for the double-bond migration reaction. Journal of Catalysis, 245, (2), 272-278. (doi:10.1016/j.jcat.2006.10.015).
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Pd(II) and Pd(0) catalysts supported onto titanate nanotubes (H2Ti3O7) were prepared by an ion-exchange technique. The catalysts are characterised by narrow size distribution of metal nanoparticles on the external surface of the nanotubes. Pd(II) catalysts show high selectivity toward double-bond migration reaction versus hydrogenation in linear olefins. The catalytic activity exhibits a volcano-type dependence on the metal loading, with the maximum activity observed at ca. 8 wt%. The Pd(II) was shown to be rapidly reduced to Pd(0) by appropriate choice of solvent. Prereduced Pd(0) catalysts were found to be less active toward double-bond migration and more selective toward hydrogenation. The DBM reaction was faster in protic solvents, such as methanol or ethanol.
|Keywords:||titanate nanotubes, double-bond migration, olefin isomerisation|
|Subjects:||T Technology > TP Chemical technology
Q Science > QD Chemistry
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering
|Date Deposited:||08 Jan 2007|
|Last Modified:||27 Mar 2014 18:27|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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