Effect of electron irradiation on the catalytic properties of supported Pd catalysts

被引：17
|
作者：
Pribytkov, A. S. [1 ]
Baeva, G. N.
Telegina, N. S.
Tarasov, A. L.
Stakheev, A. Yu.
Tel'nov, A. V.
Golubeva, V. N.
机构：
[1] Russian Acad Sci, Zelinskii Inst Organ Chem, Moscow 119991, Russia
[2] All Russia Res Inst Expt Phys, Russian Fed Nucl Ctr, Sarov 607200, Nizhegorodskaya, Russia
来源：
KINETICS AND CATALYSIS | 2006年 / 47卷 / 05期
关键词：
Palladium; Irradiation Dose; Reduction Temperature; Electron Irradiation; Unirradiated Sample;
D O I：
10.1134/S0023158406050168
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 effect of electron irradiation on the properties of the systems 1% Pd/C, 1% Pd/Al2O3, and 1% Pd/TiO2 is studied in gas-phase and liquid-phase toluene hydrogenation. An increase in the irradiation dose to 120-900 Mrad increases the catalytic activity by a factor of 2-8 relative to that of the original system. XPS data for the Pd/C catalyst suggest that, after irradiation with high-energy electrons, the metal particles are stabilized on the surface of the carbon support, their degree of dispersion is increased, and their sintering is suppressed. These inferences are consistent with the observed changes in catalytic properties.
引用
收藏
页码：765 / 769
页数：5
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