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Dumbbell‐Shaped Bi‐component Mesoporous Janus Solid Nanoparticles for Biphasic Interface Catalysis
Author(s) -
Yang Tianyu,
Wei Lijuan,
Jing Lingyan,
Liang Jifen,
Zhang Xiaoming,
Tang Min,
Monteiro Michael J.,
Chen Ying Ian,
Wang Yong,
Gu Sai,
Zhao Dongyuan,
Yang Hengquan,
Liu Jian,
Lu G. Q. Max
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201701640
Subject(s) - janus particles , janus , mesoporous material , materials science , catalysis , chemical engineering , nanoparticle , wetting , nanotechnology , carbon fibers , particle (ecology) , organic chemistry , chemistry , composite material , engineering , oceanography , geology , composite number
There is a strong desire to design and synthesize catalysts that assemble at the oil–water interface to improve the efficiency of biphasic reactions. Anisotropic dumbbell‐shaped bi‐component mesoporous carbon–organosilica Janus particles with asymmetric wettability are synthesized through a one‐step compartmentalized growth of a mesoporous organosilica sphere attached to a mesoporous resorcinol–formaldehyde (RF) sphere. A library was prepared of tunable Janus particles possessing diverse hollow structures with various functionalities. As a proof of concept, the Janus particle‐derived catalyst can assemble at the oil–water interface to stabilize Pickering emulsions. Owing to the increased reaction interface area, the Janus catalyst exhibits a more than three‐fold increase in catalytic efficiency compared to the Pt loaded carbon sphere catalyst in aqueous hydrogenation reactions.