Lawes, Naomi, Aggett, Kieran J., Smith, Louise R., Slater, Thomas J. A. ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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Abstract
PdZn/TiO2 catalysts have been investigated for the hydrogenation of CO2 to methanol. Varying the ratio of Pd and Zn using TiO2 as a support has a dramatic effect on catalytic performance. Chemical vapour impregnation was used to produce PdZn alloys on TiO2 and X-ray diffraction, X-ray photoelectron spectroscopy, and scanning transmission electron microscopy revealed changes in the structure at varying total PdZn molar ratios. Compared to monometallic Pd/TiO2, introducing a low loading of Zn drastically changes product selectivity. When Pd is alloyed with Zn above a total Zn/Pd = 1 molar ratio, methanol selectivity is improved. Therefore, for enhanced methanol productivity, it is crucial for the Zn loading to be higher than that required for the stoichiometric formation of the 1:1 β-PdZn alloy.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Chemistry Cardiff Catalysis Institute (CCI) |
Publisher: | Springer |
ISSN: | 1011-372X |
Funders: | EPSRC |
Date of First Compliant Deposit: | 28 September 2023 |
Date of Acceptance: | 3 August 2023 |
Last Modified: | 11 Apr 2024 11:54 |
URI: | https://orca.cardiff.ac.uk/id/eprint/162813 |
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