Spherical Sandwich Au@Pd@UIO-67/Pt@UIO-n (n=66, 67, 69) Core-Shell Catalysts: Zr-Based Metal-Organic Frameworks for Effectively Regulating the Reverse Water-Gas Shift Reaction

被引：31

作者：

Xu, Haitao ^{[1
]}

Luo, Xikuo ^{[1
]}

Wang, Jiajia ^{[1
]}

Su, Yuqun ^{[1
]}

Zhao, Xi ^{[1
]}

Li, Yansong ^{[1
]}

机构：

[1] ECUST, State Key Lab Chem Engn, Membrane Sci & Engn R&D Lab, Chem Engn Res Ctr, 130 Meilong Rd, Shanghai 200237, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2019年 / 11卷 / 22期

基金：

中国国家自然科学基金;

关键词：

spherical sandwich; Zr-based MOFs; noble-metal NPs; core shell catalyst; RWGS; CO2; HYDROGENATION; ELECTROCHEMICAL REDUCTION; NANOPARTICLES; OXIDATION; SUPPORT; NANOSTRUCTURE; SELECTIVITY; STATES; OXIDE; MOFS;

D O I：

10.1021/acsami.9b04748

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, spherical sandwich AupPd@UIO-67/Pt@ UIO-n (n = 66, 67, 69) core shell catalysts were assembled. Au nanoparticles (NPs) were used as the core for the epitaxial growth of Pd shells, and AupPd core shell NPs were successfully encapsulated in the center of monodispersed Au@Pd@UIO-67 nanospheres. Pt NPs were fully fixed onto the nanosphere surfaces to obtain Au@Pd@UIO-67/Pt composites; further coating with UIO-n led to Au@PdpUI0-67/Pt@ UIO-n, in which Pt NPs are sandwiched between the AupPdpUIO-67 core and the UIO-n shell. The Au@Pd core shell NPs efficiently controlled the morphology and structure of UIO-67 and enhanced the CO selectivity of the catalyst. Pt NPs increased the CO, conversion, and the UIO-n component effectively regulated the reverse water gas shift reaction.

引用

页码：20291 / 20297

页数：7