Improved Cu- and Zn-based catalysts for CO2 hydrogenation to methanol

被引：42

作者：

Allam, Djaouida ^{[1
]}

Bennici, Simona ^{[2
,3
]}

Limousy, Lionel ^{[2
,3
]}

Hocine, Smain ^{[1
]}

机构：

[1] Univ Mouloud Mammeri Tizi Ouzou, Lab Chim Appl & Genie Chim, BP 17 RP, Tizi Ouzou 15000, Algeria

[2] Univ Haute Alsace, CNRS, UMR 7361, IS2M, F-68100 Mulhouse, France

[3] Univ Strasbourg, Strasbourg, France

来源：

COMPTES RENDUS CHIMIE | 2019年 / 22卷 / 2-3期

关键词：

CO2; valorization; Polyol synthesis; Methanol synthesis; Oxide catalysts; COLLOIDAL SILVER NANOPARTICLES; CARBON-DIOXIDE HYDROGENATION; CU/ZNO/ZRO2; CATALYSTS; DIMETHYL ETHER; CUO-ZNO-AL2O3; NANOCATALYST; POLYOL METHOD; ZINC-OXIDE; COPPER; COPRECIPITATION; PERFORMANCE;

D O I：

10.1016/j.crci.2019.01.002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study the influence of metal dispersion, spinel formation, and surface properties of binary and ternary catalysts (CuO-CeO2, ZnO-CeO2, CuO-ZnO-CeO2, and CuO-ZnO-Al2O3) was evaluated. The catalysts prepared by polyol method using polyethylene glycol as a solvent have been tested in the CO2 hydrogenation to methanol performed at atmospheric pressure. The catalysts prepared by polyol method presented improved properties in terms of metal oxide dispersion, morphology (i.e. sponge-like shape for the CeO2-containing catalysts), and a large variety of metal and metal oxide species on the surface. Moreover, the CuO-ZnO-CeO2 and CuO-ZnO-Al2O3 catalysts exhibited a higher activity and selectivity in the methanol synthesis by CO2 hydrogenation than those displayed by catalysts prepared by more conventional methods. (C) 2019 Academie des sciences. Published by Elsevier Masson SAS.

引用

页码：227 / 237

页数：11

共 85 条

[1] Influence of the thermal treatment upon the textural properties of sol-gel mesoporous γ-alumina synthesized with cationic surfactants [J].