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).

Abstract

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.

This record has no associated files available for download.

Contributors

Download statistics