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Immobilization of polymer-protected metal colloid catalysts by the formation of polymer hydrogen bond complexes

✍ Scribed by Yuan Wang; Hanfan Liu; Yanxia Huang

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
519 KB
Volume
7
Category
Article
ISSN
1042-7147

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✦ Synopsis

poly(N-vinyl-2-pyrrolidone)-(PVP) and polyvinyl alco-

hol-(PVA) protected nanoscopic noble metal colloidal catalysts were immobilized to prepare the corresponding heterogeneous catalysts by forming polymer hydrogen bond complexes of polyacrylic acid ( P . ) with PVP or PVA. A PVP-PAA-Pd catalyst was found to be very active and selective for the partial hydrogenation of cyclopentadiene to cyclopentene.

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Zerovalent palladium, platinum and rhodium catalysts dispersed in thin poly(pyrrole-alkylammonium) films coated on carbon electrodes have been applied to the electrocatalytic hydrogenation of organic substates containing two different carbon-carbon double bonds, namely limonene and carvone. Results