title: Confinement of Ultrasmall Cu/ZnOxNanoparticles in Metal-Organic Frameworks for Selective Methanol Synthesis from Catalytic Hydrogenation of CO2.
abstract: The interfaces of Cu/ZnO and Cu/ZrO2play vital roles in the hydrogenation of CO2to methanol by these composite catalysts. Surface structural reorganization and particle growth during catalysis deleteriously reduce these active interfaces, diminishing both catalytic activities and MeOH selectivities. Here we report the use of preassembled bpy and Zr6(μ3-O)4(μ3-OH)4sites in UiO-bpy metal-organic frameworks (MOFs) to anchor ultrasmall Cu/ZnOxnanoparticles, thus preventing the agglomeration of Cu NPs and phase separation between Cu and ZnOxin MOF-cavity-confined Cu/ZnOxnanoparticles. The resultant Cu/ZnOx@MOF catalysts show very high activity with a space-time yield of up to 2.59 gMeOHkgCu-1h-1, 100% selectivity for CO2hydrogenation to methanol, and high stability over 100 h. These new types of strong metal-support interactions between metallic nanoparticles and organic chelates/metal-oxo clusters offer new opportunities in fine-tuning catalytic activities and selectivities of metal nanoparticles@MOFs.
authors.affiliation: Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, PR China.
authors.forename: Bing
authors.initials: B
authors.lastname: An
authors.affiliation: Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, PR China.
authors.forename: Jingzheng
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, PR China.
authors.forename: Kang
authors.initials: K
authors.lastname: Cheng
authors.affiliation: Department of Chemistry, University of Chicago , 929 East 57th Street, Chicago, Illinois 60637, United States.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Ji
authors.affiliation: Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, PR China.
authors.forename: Cheng
authors.identifier: 0000-0002-7906-8061
authors.initials: C
authors.lastname: Wang
authors.affiliation: Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, PR China.|Department of Chemistry, University of Chicago , 929 East 57th Street, Chicago, Illinois 60637, United States.
authors.forename: Wenbin
authors.identifier: 0000-0001-7035-7759
authors.initials: W
authors.lastname: Lin