Increased Oxygen Vacancies in CuO-ZnO Snowflake-like Composites Drive the Hydrogenation of CO2 to Methanol

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外文摘要：Cu/ZnO is widely used in the hydrogenation of carbon dioxide(CO2)to methanol(CH3OH)to improve the low conversion rate and selectivity generally observed.In this work,a series of In,Zr,Co,and Ni-doped CuO-ZnO catalysts was synthesized via a hydrothermal method.By introducing a second metal element,the activity and dispersion of the active sites can be adjusted and the synergy between the metal and the carrier can be enhanced,forming an abundance of oxygen vacancies.Oxygen vacancies not only adsorb CO2 but also activate the intermediates in methanol synthesis,playing a key role in the entire reaction.Co3O4-CuO-ZnO had the best catalytic performance(a CO2 conversion rate of 9.17%;a CH3OH selectivity of 92.77%).This study describes a typical strategy for multi-component doping to construct a catalyst with an abundance of oxygen vacancies,allowing more effective catalysis to synthesize CH3OH from CO2.

外文关键词：

CuO-ZnO catalystCO2 hydrogenation to CH3OHdopingoxygen vacancysynergy

作者：

San Xiaoguang、Wu Wanmeng、Zhang Lei、Meng Dan、Chang Xiangshuang、Tan Jianen、Qi Jian

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作者单位：

College of Chemical Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China

Shenyang Xinghua Aviation Electrical Appliances Co.,Ltd.Shenyang 110023,China

Department of Prosthodontics,PLA 964 Hospital,Changchun 130000,China

State Key Laboratory of Biochemical Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China

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出版年：

2024

中国炼油与石油化工(英文版)

中国石化集团石油化工科学研究院

中国炼油与石油化工(英文版)

影响因子：1.199

ISSN：1008-6234

年,卷(期)：2024.26(2)