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Amphiphilic janus particles for aerobic alcohol oxidation in oil foams

Amphiphilic janus particles for aerobic alcohol oxidation in oil foams
Amphiphilic janus particles for aerobic alcohol oxidation in oil foams
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.
alcohol oxidation, gas-liquid-solid interface, janus particles, microreactor, oil foams, photoinduced force microscopy (PiFM), gas−liquid−solid interface, Janus particles
2155-5435
11545-11553
Wang, Kang
89ac222c-7763-4e6c-99a5-4d3c9181b954
Davies-Jones, Josh
f11373e8-1ddf-4ee3-a0cb-60150bb8d82c
Graf, Arthur
6a587b95-5e83-4bf5-b584-6e561c6f484d
Carravetta, Marina
1b12fa96-4a6a-4689-ab3b-ccc68f1d7691
Davies, Philip R.
e43c0f37-11a8-41a5-8bac-d85a7914d4bb
Pera-Titus, Marc
177729ee-3075-4051-8056-188d991b93ff
Wang, Kang
89ac222c-7763-4e6c-99a5-4d3c9181b954
Davies-Jones, Josh
f11373e8-1ddf-4ee3-a0cb-60150bb8d82c
Graf, Arthur
6a587b95-5e83-4bf5-b584-6e561c6f484d
Carravetta, Marina
1b12fa96-4a6a-4689-ab3b-ccc68f1d7691
Davies, Philip R.
e43c0f37-11a8-41a5-8bac-d85a7914d4bb
Pera-Titus, Marc
177729ee-3075-4051-8056-188d991b93ff

Wang, Kang, Davies-Jones, Josh, Graf, Arthur, Carravetta, Marina, Davies, Philip R. and Pera-Titus, Marc (2024) Amphiphilic janus particles for aerobic alcohol oxidation in oil foams. ACS Catalysis, 14 (15), 11545-11553. (doi:10.1021/acscatal.4c00909).

Record type: Article

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.

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Accepted/In Press date: 11 July 2024
e-pub ahead of print date: 19 July 2024
Keywords: alcohol oxidation, gas-liquid-solid interface, janus particles, microreactor, oil foams, photoinduced force microscopy (PiFM), gas−liquid−solid interface, Janus particles

Identifiers

Local EPrints ID: 493200
URI: http://eprints.soton.ac.uk/id/eprint/493200
ISSN: 2155-5435
PURE UUID: 0cbd1579-326c-4b1e-ab91-ea74396e1c22
ORCID for Marina Carravetta: ORCID iD orcid.org/0000-0002-6296-2104

Catalogue record

Date deposited: 27 Aug 2024 17:18
Last modified: 28 Aug 2024 01:38

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Contributors

Author: Kang Wang
Author: Josh Davies-Jones
Author: Arthur Graf
Author: Philip R. Davies
Author: Marc Pera-Titus

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