Dynamical changes in Cu/ZnO/Al2O3 catalysts

被引：68

作者：

Wilmer, H ^{[1
]}

Hinrichsen, O ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Lab Ind Chem, D-44780 Bochum, Germany

来源：

CATALYSIS LETTERS | 2002年 / 82卷 / 1-2期

关键词：

Cu/ZnO/Al2O3; catalyst; methanol synthesis; dynamic behavior; temperature-programmed desorption of H-2; N2O reactive frontal chromatography;

D O I：

10.1023/A:1020560628950

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：

A combination of various transient and steady-state kinetic experiments was used to provide evidence for dynamical changes in a Cu/ZnO/Al2O3 catalyst of industrial interest. From these it can be deduced that the reversible structural alterations strongly depend on the reaction conditions as well as on the pretreatment. The pretreatment was found to induce changes in the morphology of the metallic Cu particles to some extent, and surface alloying under more severe reducing conditions.

引用

页码：117 / 122

页数：6

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