REDUCTION KINETICS OF CUO-ZNO

被引：7

作者：

ANNESINI, MC ^{[1
]}

LAVECCHIA, R ^{[1
]}

MARRELLI, L ^{[1
]}

LOJACONO, M ^{[1
]}

CAMPA, MC ^{[1
]}

FIERRO, G ^{[1
]}

MORETTI, G ^{[1
]}

PORTA, P ^{[1
]}

机构：

[1] UNIV ROMA LA SAPIENZA,DEPT CHEM,I-00185 ROME,ITALY

来源：

SOLID STATE IONICS | 1993年 / 63-5卷

关键词：

D O I：

10.1016/0167-2738(93)90117-L

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：

Copper-containing catalysts are activated, before use, by a reduction process where the presence of ZnO has a promoting effect. The present paper deals with the kinetic behaviour of the reduction of the copper species in well defined specimens of CuO-ZnO. The effects of the temperature, hydrogen pressure and ZnO content on the consumption rate of hydrogen are analysed. A kinetic model is proposed which is consistent with the chemistry of the reduction reactions which involve the formation of the intermediate Cu+. The model appears to be able to describe the consumption rate of hydrogen and to account for the distribution of copper species in the course of the reduction.

引用

页码：281 / 288

页数：8

共 25 条

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