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Template‐Directed Ordered Mesoporous Silica@Palladium‐Containing Zinc Metal–Organic Framework Composites as Highly Efficient Suzuki Coupling Catalysts
Author(s) -
Yang Ying,
Cong Daoyong,
Hao Shijie
Publication year - 2016
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201501314
Subject(s) - palladium , catalysis , materials science , mesoporous material , mesoporous silica , substrate (aquarium) , metal , zinc , metal organic framework , composite material , chemical engineering , chemistry , metallurgy , organic chemistry , oceanography , adsorption , engineering , geology
We report a new type of ordered mesoporous silica@Pd‐containing Zn metal–organic framework composites (OMS@Pd‐ZnMOF) synthesized directly by cooperative template‐directed self‐assembly. The growth of Pd‐ZnMOF crystals on the bare surface of in situ generated silica spheres is achieved based on a surface‐charge‐induced epitaxial growth mechanism. The catalytic properties of the resulting OMS@Pd‐ZnMOF composites can be tailored by the variation of the Pd/(Pd+Zn) molar ratio in the synthetic gel, and OMS@Pd‐ZnMOF‐5 % (which corresponds to 1.2 wt % Pd) shows a wide substrate scope and is highly active and stable in Suzuki–Miyaura coupling reactions.