Title: Zn Loading Effects on the Selectivity of PdZn Catalysts for CO2 Hydrogenation to Methanol

Authors (10): N. Lawes, K. J. Aggett, L. R. Smith, T. J. A. .Slater, M. Dearg, D. J. Morgan, N. F. Dummer, S. H. Taylor, G. J. Hutchings, M. Bowker

Themes: Core (2023)

DOI: 10.1007/s10562-023-04437-5

Citations: 0

Pub type: journal-article

Publisher: Springer Science and Business Media LLC


License: [{"start"=>{"date-parts"=>[[2023, 8, 24]], "date-time"=>"2023-08-24T00:00:00Z", "timestamp"=>1692835200000}, "content-version"=>"tdm", "delay-in-days"=>0, "URL"=>"https://creativecommons.org/licenses/by/4.0"}, {"start"=>{"date-parts"=>[[2023, 8, 24]], "date-time"=>"2023-08-24T00:00:00Z", "timestamp"=>1692835200000}, "content-version"=>"vor", "delay-in-days"=>0, "URL"=>"https://creativecommons.org/licenses/by/4.0"}]

Publication date(s): 2023/08/24 (online)


Volume: Issue:

Journal: Catalysis Letters

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URL: http://dx.doi.org/10.1007/s10562-023-04437-5

AbstractPdZn/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. Graphical Abstract

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