CATALYTIC COLLOIDAL PD DISPERSIONS IN WATER-ORGANIC SOLUTIONS OF QUATERNARY AMMONIUM SALT

Authors
BERKOVICH Y GARTI N
Citation
Y. Berkovich et N. Garti, CATALYTIC COLLOIDAL PD DISPERSIONS IN WATER-ORGANIC SOLUTIONS OF QUATERNARY AMMONIUM SALT, Colloids and surfaces. A, Physicochemical and engineering aspects, 128(1-3), 1997, pp. 91-99
Citations number
37
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
128
Issue
1-3
Year of publication
1997
Pages
91 - 99
Database
ISI
SICI code
0927-7757(1997)128:1-3<91:CCPDIW>2.0.ZU;2-G
Abstract
Colloidal Pd prepared in a water-organic microemulsion in the presence of the cationic surfactant aliquat 336 (trioctylmethylammonium chlori de) is useful for the transfer hydrogenolysis of bromotoluene with sod ium formate. The Pd catalytic activity is strongly dependent on the pa rticle dimension, being highest for the smallest particles. The size o f the particles is determined by the preparation conditions: coarser p articles are formed at higher water contents and lower temperatures. T he reaction obeys the mechanism of micellar catalysis. (C) 1997 Elsevi er Science B.V.