TY - JOUR
T1 - Highly selective Pd/titanate nanotube catalysts for the double-bond migration reaction
AU - Torrente Murciano, Laura
AU - Lapkin, Alexei
AU - Bavykin, D
AU - Walsh, F
AU - Wilson, K
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
UR - http://dx.doi.org/10.1016/j.jcat.2006.10.015
U2 - 10.1016/j.jcat.2006.10.015
DO - 10.1016/j.jcat.2006.10.015
M3 - Article
VL - 245
SP - 272
EP - 278
JO - Journal of Catalysis
JF - Journal of Catalysis
IS - 2
ER -