Influence of the electronic state of the metals in Cu–Pt/SiO2 catalysts on the catalytic properties in selective hydrogenation of the C≡C bond

BACKGROUND The development of highly efficient and selective bimetallic catalytic systems for the hydrogenation of unsaturated compounds is an important scientific task. RESULTS A new bimetallic 1%Cu‐1%Pt/SiO2 catalyst for the selective hydrogenation of phenylacetylene was developed. The bimetallic...

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Bibliographic Details
Published in:Journal of chemical technology and biotechnology (1986) 2021-12, Vol.96 (12), p.3436-3441
Main Authors: Shesterkina, Anastasiya, Shuvalova, Elena, Strekalova, Anna, Tkachenko, Olga, Kustov, Leonid
Format: Article
Language:English
Subjects:
Bimetals
Catalysts
Copper
copper–platinum bimetallic catalyst
Electron states
Hydrogenation
Impregnation
Metals
Phenylacetylene
selective hydrogenation
Selectivity
Silicon dioxide
Styrene
Styrenes
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Summary:BACKGROUND The development of highly efficient and selective bimetallic catalytic systems for the hydrogenation of unsaturated compounds is an important scientific task. RESULTS A new bimetallic 1%Cu‐1%Pt/SiO2 catalyst for the selective hydrogenation of phenylacetylene was developed. The bimetallic catalysts were prepared by a consecutive incipient wetness impregnation method and a redox method with preadsorbed hydrogen. We showed that the catalytic properties of 1%Cu‐1%Pt/SiO2 catalysts and selectivity toward styrene depend on the states of metals and interactions between Cu and Pt in bimetallic particles. The strong contact interaction between Pt0, Ptδ– and Cu
ISSN:0268-2575
1097-4660
DOI:10.1002/jctb.6907