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Dumbbell-shaped bi-component mesoporous Janus solid nanoparticles for biphasic interface catalysis

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journal contribution
posted on 10.07.2017, 00:00 authored by Tianyu Yang, L Wei, L Jing, J Liang, X Zhang, M Tang, M J Monteiro, Ying (Ian) ChenYing (Ian) Chen, Y Wang, S Gu, D Zhao, J Liu, G Q M Lu
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.

History

Journal

Angewandte chemie international edition

Volume

56

Issue

29

Pagination

8459 - 8463

Publisher

Wiley-Blackwell

Location

London, Eng.

ISSN

1433-7851

eISSN

1521-3773

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2017, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim