Journal
JOURNAL OF CATALYSIS
Volume 283, Issue 1, Pages 89-97Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2011.07.007
Keywords
Platinum; Rhenium; Bimetallic; Titania; Amide; DFT
Categories
Funding
- EPSRC
- Johnson Matthey plc [GR/S43702/01, EP/G012156/1]
- DELNI
- EPSRC [EP/G012156/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G012156/1] Funding Source: researchfish
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Hydrogenation of tertiary amides, in particular, N-methylpyrrolidin-2-one, can be efficiently facilitated by a TiO(2)-supported bimetallic Pt/Re catalyst at low temperatures and pressures. Characterisation of the catalysts and kinetic tests have shown that the close interaction between the Re and Pt is crucial to the high activity observed. DFT calculations were used to examine a range of metal combinations and show that the role of the uncoordinated Re is to activate the C=O and that of the Pt is as a hydrogenation catalyst, removing intermediates from the catalyst surface. The rate enhancement observed on the TiO(2) support is thought to be due to the presence of oxygen vacancies allowing adsorption and weakening of the C=O bond. (C) 2011 Elsevier Inc. All rights reserved.
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