Hollow Zn/Co ZIF Particles Derived from Core-Shell ZIF-67@ZIF-8 as Selective Catalyst for the Semi-Hydrogenation of Acetylene

被引：741

作者：

Yang, Jian ^{[3
]}

Zhang, Fengjun ^{[3
]}

Lu, Haiyuan ^{[1
,2
]}

Hong, Xun ^{[1
,2
]}

Jiang, Hailong ^{[4
]}

Wu, Yuen ^{[1
,2
]}

Li, Yadong ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, Ctr Adv Nanocatalysis, Hefei 230026, Anhui, Peoples R China

[2] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

[3] Anhui Jianzhu Univ, Anhui Key Lab Adv Bldg Mat, Univ Sci & Technol China, Ctr Adv Nanocatalysis, Hefei 230026, Anhui, Peoples R China

[4] Univ Sci & Technol China, Dept Chem, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2015年 / 54卷 / 37期

基金：

中国国家自然科学基金;

关键词：

core-shell particles; metal-organic frameworks; semi-hydrogenation of acetylene; zeolite imidazolate frameworks; METAL-ORGANIC FRAMEWORKS; ZEOLITIC IMIDAZOLATE FRAMEWORKS; HETEROGENEOUS CATALYSIS; HYDROGENATION; NANOCRYSTALS; NANOPARTICLES; FABRICATION; PALLADIUM; STRATEGY; SURFACE;

D O I：

10.1002/anie.201504242

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The rational design of metal-organic frameworks (MOFs) with hollow features and tunable porosity at the nanoscale can enhance their intrinsic properties and stimulates increasing attentions. In this Communication, we demonstrate that methanol can affect the coordination mode of ZIF-67 in the presence of Co2+ and induces a mild phase transformation under solvothermal conditions. By applying this transformation process to the ZIF-67@ZIF-8 core-shell structures, a well-defined hollow Zn/Co ZIF rhombic dodecahedron can be obtained. The manufacturing of hollow MOFs enables us to prepare a noblemetal@MOF yolk-shell composite with controlled spatial distribution and morphology. The enhanced gas storage and porous confinement that originate from the hollow interior and coating of ZIF-8 confers this unique catalyst with superior activity and selectivity toward the semi-hydrogenation of acetylene.

引用

页码：10889 / 10893

页数：5

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