1. Dumbbell-Shaped Bi-component Mesoporous Janus Solid Nanoparticles for Biphasic Interface Catalysis.
- Author
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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, and Lu, G. Q. Max
- Subjects
CARBON ,RESORCINOL ,HYDROGENATION ,JANUS particles ,EMULSIONS - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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