首页|The regulation of Cu-ZnO interface by Cu-Zn bimetallic metal organic framework-templated strategy for enhanced CO2 hydrogenation to methanol
The regulation of Cu-ZnO interface by Cu-Zn bimetallic metal organic framework-templated strategy for enhanced CO2 hydrogenation to methanol
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NSTL
Rich Cu-ZnO interfaces play a significant role in Cu/ZnO catalysts for CO2 hydrogenation to methanol.However,the low methanol selectivity and catalytic stability of reported Cu/ZnO catalysts mainly ascribe to the reduction of Cu-ZnO interfaces,which caused by the agglomeration of Cu nanoparticles.Herein,Cu/ZnO catalysts(named CuxZnO-MOF-74-350)with rich Cu-ZnO interfaces were prepared by using Cu-Zn bimetallic metal organic framework(MOFs)-templated strategy(x is the feeding ratios of Cu/Zn).Especially,CuZnO-MOF-74-350 catalyst exhibited high methanol selectivity of about 80% at a CO2 conversion of 7.5%,and had long-term durability for 100 h at 190 ℃ under 4.0 MPa.The great catalytic performance mainly resulted from rich interfaces,which were conducive to the adsorption of CO2 and the formation of intermediate.This study provides a novel strategy for optimizing the activity of catalysts in the view of the regulation of interface.
Cu/ZnO catalystBimetallic metal organic frameworkCu-ZnO interfacesCO2 hydrogenationMethanolThermocatalysis
Caiyun Han、Haotian Zhang、Congming Li
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College of Environmental Science and Engineering,Taiyuan University of Technology,Jinzhong 030600,Shanxi,PR China
Key Laboratory of Coal Science and Technology,Ministry of Education and Shanxi Province,Taiyuan University of Technology,Taiyuan 030024,Shanxi,PR China
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