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Synthesis of novel composite materials via the deposition of precious metals onto protonated titanate (TiO2) nanotubes


Reference:

Walsh, F. C., Bavykin, D. V., Torrente Murciano, L., Lapkin, A. A. and Cressey, B. A., 2006. Synthesis of novel composite materials via the deposition of precious metals onto protonated titanate (TiO2) nanotubes. Transactions of the Institute of Metal Finishing, 84 (6), pp. 293-299.

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Official URL:

http://dx.doi.org/10.1179/174591906X149077

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.

Details

Item Type Articles
CreatorsWalsh, F. C., Bavykin, D. V., Torrente Murciano, L., Lapkin, A. A. and Cressey, B. A.
DOI10.1179/174591906X149077
DepartmentsFaculty of Engineering & Design > Chemical Engineering
RefereedYes
StatusPublished
ID Code26924

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