Amphiphilic Janus particles for aerobic alcohol oxidation in oil foams

Wang, Kang, Davies-Jones, Josh, Graf, Arthur, Carravetta, Marina, Davies, Philip R. ORCID: https://orcid.org/0000-0003-4394-766X and Pera-Titus, Marc 2024. Amphiphilic Janus particles for aerobic alcohol oxidation in oil foams. ACS Catalysis 14 , 11545–11553. 10.1021/acscatal.4c00909

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Abstract

Amphiphilic Janus silica particles, tunable with oleophobic–oleophilic properties and low fluorine content (8 wt % F), exhibited prominent foamability for a variety of aromatic alcohols at low particle concentrations (<1 wt %) compared to randomly functionalized silica particles. When selectively loaded with Pd nanoparticles on the oleophilic hemisphere, the particles displayed more than a 2-fold increase in catalytic activity for the aerobic oxidation of benzyl alcohol compared to nonfoam bulk catalysis under ambient O2 pressure. The particles were conveniently recycled with high foamability and catalytic activity maintained for at least five consecutive runs.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Publisher:	American Chemical Society
ISSN:	2155-5435
Funders:	EPSRC, The European Regional Development Fund (ERDF), Welsh European Funding Office (WEFO)
Date of First Compliant Deposit:	24 July 2024
Date of Acceptance:	11 July 2024
Last Modified:	19 Aug 2024 16:24
URI:	https://orca.cardiff.ac.uk/id/eprint/170897

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