Kinetics and mechanism of palladium(II) acetate reduction by hydrogen on the surface of a carbon support

被引：16

作者：

Berenblyum, A. S. ^{[1
]}

Al-Wadhaf, Hussein Ali ^{[1
]}

Katsman, E. A. ^{[1
]}

Flid, V. R. ^{[1
]}

机构：

[1] Moscow State Acad Fine Chem Technol, Moscow 119571, Russia

来源：

KINETICS AND CATALYSIS | 2011年 / 52卷 / 02期

关键词：

COMPLEXES; CATALYSTS;

D O I：

10.1134/S0023158411020029

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The kinetics of the reduction of Pd(II) compounds by dihydrogen on the surface of a carbon support has been investigated for palladium acetate as an example. A kinetic model has been constructed for this reaction. An autocatalytic mechanism is suggested, in which the key role is played by Pd(0) compounds and their hydrides. The reaction occurring on the support surface is compared with the same reaction in solutions of palladium phosphine acetate complexes, where a similar mechanism is observed. One of the most important features of the surface reaction is the relatively slow reduction of the Pd(I) compounds to Pd(0). This makes it possible to obtain materials with a high Pd(I) content of 5% and above.

引用

页码：296 / 304

页数：9

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