期刊
CATALYSIS COMMUNICATIONS
卷 116, 期 -, 页码 67-71出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2018.08.010
关键词
Pd/C catalyst; Dispersity; Bis(eta(3)-allyl)palladium complexes; Phenylacetylene hydrogenation; Activity; Selectivity
Liquid phase hydrogenation of phenylacetylene was investigated on a series of 9.1 wt% Pd/C catalysts prepared from bis(eta(3)-allyl)palladium complexes, as well as commercial Russian Pd/C catalyst (GIPKH-108). Pd/C catalysts were characterized by oxygen absorption and SEM. All prepared Pd/C catalysts demonstrated very high selectivity to styrene. The reduction temperature of palladium precursor has a significant effect on the palladium dispersity, but the substituent near terminal carbon atom of allyl ligand affects the dispersity more essentially than reduction temperature. Pd/C catalyst prepared from bis[(eta(3)-allyl)palladium acetate] showed highest metal dispersity, activity and selectivity in the hydrogenation of phenylacetylene to styrene.
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