Influence of Preparation Parameters on the Performance of Colloid-derived Oxidic Palladium Catalysts for Selective Hydrogenation of C–C Triple Bonds

(Hydr-) oxidic PdO x H y colloids were prepared by H 2 PdCl 4 hydrolysis in presence of poly(vinylpyrrolidone) under pH control. After immobilization, the resulting catalysts show a high chemo- and stereo selectivity in the hydrogenation of C–C triple bonds. Systematic investigations of the preparat...

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Bibliographic Details
Published inTopics in catalysis Vol. 52; no. 4; pp. 412 - 423
Main Authors Klasovsky, Florian, Claus, Peter, Wolf, Dorit
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.04.2009
Subjects
Catalysis
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Original Paper
Pharmacy
Physical Chemistry
Palladium oxide
Catalyst preparation concept
Heterogeneously catalyzed hydrogenation
PVP stabilized colloids
Pd-free Lindlar catalyst
2-Hexyne
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Summary:(Hydr-) oxidic PdO x H y colloids were prepared by H 2 PdCl 4 hydrolysis in presence of poly(vinylpyrrolidone) under pH control. After immobilization, the resulting catalysts show a high chemo- and stereo selectivity in the hydrogenation of C–C triple bonds. Systematic investigations of the preparation parameters indicate that the hydrolysis pH, the PVP amount and chainlength as well as the colloid aging time are of major importance for catalytic performance.
ISSN:1022-5528
1572-9028
DOI:10.1007/s11244-008-9173-1