Version 2 2024-05-30, 16:23Version 2 2024-05-30, 16:23
Version 1 2017-07-24, 08:52Version 1 2017-07-24, 08:52
journal contribution
posted on 2024-05-30, 16:23authored byT Yang, L Wei, L Jing, J Liang, X Zhang, M Tang, MJ Monteiro, Ying (Ian) ChenYing (Ian) Chen, Y Wang, S Gu, D Zhao, H Yang, J Liu, GQM 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.