Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 139, Issue 10, Pages 3834-3840Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b00058
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Funding
- National Natural Science Foundation of the P. R of China [NSFC21471126, NSFC21671162, 2016YFA0200702]
- Ministry of Science and Technology of the P. R of China [NSFC21471126, NSFC21671162, 2016YFA0200702]
- National Thousand Talents Program of P. R. of China
- 985 Program of Chemistry and Chemical Engineering Disciplines of Xiamen University
- U.S. National Science Foundation [DMR-1308229]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1308229] Funding Source: National Science Foundation
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interfaces of Cu/ZnO and Cu/ZrO2 play vital roles in the hydrogenation of CO2 to methanol by these composite catalysts. Surface structural reorganization and particle growth during catalysis deleteriously reduce these active interfaces, diminishing both catalytic activities and MeH selectivities. Here we report the use of preassembled bpy and Zr-6(mu(3)-O)(4)(mu(3)-O)(4) sites in UiO-bpy metal-organic frameworks (MOFs) to anchor ultrasmall Cu/ZnO nano particles, thus preventing the agglomeration of Cu NPs and phase separation between Cu and ZnOx in MOF-cavity-confined Cu/ZnOx nanoparticles. The resultant Cu/ZnOx@MOF catalysts show very high activity with a space-time yield of up to 2.59 gMeOH kgCu(-1) h(-1), 100% selectivity for CO2 hydrogenation 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.
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