yang-dumbbellshapedbi-2017.pdf (3.63 MB)
Dumbbell-shaped bi-component mesoporous Janus solid nanoparticles for biphasic interface catalysis
journal contribution
posted on 2017-07-10, 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 LuThere 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 editionVolume
56Issue
29Pagination
8459 - 8463Publisher
Wiley-BlackwellLocation
London, Eng.Publisher DOI
Link to full text
ISSN
1433-7851eISSN
1521-3773Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2017, Wiley-VCH Verlag GmbH & Co. KGaA, WeinheimUsage metrics
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No categories selectedKeywords
Janus particlesPickering emulsionshydrogenationmesoporous materialsnanocatalysisScience & TechnologyPhysical SciencesChemistry, MultidisciplinaryChemistryOIL-WATER INTERFACEPICKERING-EMULSIONSILICA-NANOPARTICLESORGANOSILICA NANOPARTICLESCARBONACEOUS NANOSPHERESPARTICLESPHASENANOSTRUCTURESSTRATEGYDROPLETS
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