Carbon dioxide hydrogenation to methanol over the pre-reduced LaCr0.5Cu0.5O3 catalyst

被引：62

作者：

Jia, Lishan ^{[1
,3
]}

Gao, Jing ^{[1
,3
]}

Fang, Weiping ^{[2
]}

Li, Qingbiao ^{[1
,3
]}

机构：

[1] Xiamen Univ, Dept Chem Engn & Biochem Engn, Coll Chem & Chem Engn, Xiamen 361005, Fujian, Peoples R China

[2] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, Xiamen 361005, Fujian, Peoples R China

[3] Ethers & Esters, Natl Engn Lab Green Chem Prod Alcohols, Xiamen 361005, Fujian, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2009年 / 10卷 / 15期

关键词：

CO2; hydrogenation; Methanol synthesis; LaCr0.5Cu0.5O3; perovskite; X-RAY PHOTOELECTRON; CU-ZNO/ZRO2; CATALYSTS; ELECTRICAL-PROPERTIES; PEROVSKITES; CO2; OXIDES; LACRO3; GAS; PERFORMANCE; CONVERSION;

D O I：

10.1016/j.catcom.2009.07.017

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 synthesis of methanol from CO2 hydrogenation was carried out over the pre-reduced Cu-based LaCr0.5Cu0.5O3 catalyst. It showed a much higher catalytic performance (X-CO2 = 10.4% and S-MeOH = 90.8%) at 250 degrees C than over 13% Cu/LaCrO3 prepared by wet-impregnation method (X-CO2 = 4.8% and S-MeOH = 46.6%). XRD, H-2/CO2-TPD and XPS measurements illustrated that hydrogen was adsorbed on the Cu alpha+ sites and that CO2 was activated on the medium basic sites for the reduced LaCr0.5Cu0.5O3. This phenomenon was responsible for its catalytic activity. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2000 / 2003

页数：4

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