文献类型：期刊文献

英文题名：A Monodispersed Spherical Zr-Based Metal-Organic Framework Catalyst, Pt/Au@Pd@UIO-66, Comprising an Au@Pd Core-Shell Encapsulated in a UIO-66 Center and Its Highly Selective CO2 Hydrogenation to Produce CO

作者：Zheng, Zhizhong[1];Xu, Haitao[1];Xu, Zhenliang[1];Ge, Jianping[2]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Membrane Sci & Engn R&D Lab, Shanghai 200237, Peoples R China;[2]East China Normal Univ, Shanghai Key Lab Green Chem & Chem Proc, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：14

期号：5

外文期刊名：SMALL

收录：;EI(收录号：20175004525302);WOS:【SCI-EXPANDED(收录号:WOS:000423834100011)】；

基金：We gratefully acknowledge the financial support from the National Natural Science Foundation of China (Grant No. 21371058).

语种：英文

外文关键词：core-shell; reverse-water-gas-shift; Zr-based MOFs

摘要：A Zr-based metal-organic framework (MOF) catalyst, Pt/Au@Pd@UIO-66, is assembled, where UIO-66 is Zr6O4(OH)(4)(BDC)(6) (BDC = 1,4-benzenedicarboxylate). The gold nanoparticles (NPs) act as the core for the epitaxial growth of Pd shells, and the core-shell monodispersed nanosphere Au@Pd is encapsulated into UIO-66 to control its morphology and impart nanoparticle functionality. The microporous nature of UIO-66 assists the adsorption of Pt NPs, which in turn enhances the interaction between NPs and UIO-66, favoring the formation of isolated and well-dispersed Pt NP active sites. This MOF exhibits high catalytic activity and CO product selectivity for the reverse-water-gas-shift reaction in a fixed-bed flow reactor.