SINTERING KINETICS OF SUPPORTED METALS - NEW PERSPECTIVES FROM A UNIFYING GPLE TREATMENT

被引：151

作者：

BARTHOLOMEW, CH

机构：

[1] Department of Chemical Engineering, Brigham Young University, Provo

来源：

APPLIED CATALYSIS A-GENERAL | 1993年 / 107卷 / 01期

关键词：

GENERAL POWER LAW (GPL); KINETICS; SINTERING; SUPPORTED CATALYSTS;

D O I：

10.1016/0926-860X(93)85114-5

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：

Studies of sintering kinetics of conventional supported metal catalysts are reviewed. Available kinetic data for sintering have been reanalyzed using the new General Power Law Expression (GPLE), which provides the capability of treating these data in a consistent, unifying fashion such that quantitative comparisons regarding effects of reaction conditions and catalyst properties are possible for the first time. It is shown that all available dispersion-versus-time data can be fitted to either first or second order GPL kinetics. From the analysis of these data new conclusions arise regarding the effects of atmosphere, time, temperature, support, promoters, and metal on the thermal stability of supported metals.

引用

页码：1 / 57

页数：57

共 83 条

[1]

ADAMIEC J, 1981, AICHE ANN M NEW ORLE

[2] EFFECTS OF METAL SUPPORT INTERACTION AND TEMPERATURE ON THE SINTERING OF PT-PARTICLES AND AG-PARTICLES SUPPORTED ON INORGANIC SOLIDS [J].