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Elucidating structure–property relationships in the design of metal nanoparticle catalysts for the activation of molecular oxygen

Elucidating structure–property relationships in the design of metal nanoparticle catalysts for the activation of molecular oxygen
Elucidating structure–property relationships in the design of metal nanoparticle catalysts for the activation of molecular oxygen
A novel synthetic strategy for the design of metal nanoparticles by extrusion of anionic chloride precursors from a porous copper chlorophosphate framework has been devised for the sustainable aerobic oxidation of vanillyl alcohol (4-hydroxy-3-methoxybenzyl alcohol) to vanillin (4-hydroxy-3-methoxybenzaldehyde) using a one-step, base-free method. The precise nature of the Au, Pt, and Pd species has been elucidated for the as-synthesized and thermally activated analogues, which exhibit fascinating catalytic properties when subjected to diverse activation environments. By employing a combination of structural and spectroscopic characterization tools, it has been shown that analogous heat treatments have differing effects on extrusion of a particular metal species. The most active catalysts in this series of materials were the extruded Pt nanoparticles that were generated by reduction in H2, which exhibit enhanced catalytic behavior, when compared to its Au or Pd counterparts, for industrially significant, aerobic oxidation reactions.
2155-5435
3807-3816
Hinde, Christopher
08da9ba4-06f6-433c-a6f9-269441ffa557
Ansovini, Davide
7ef1b9c9-d3f5-4f85-ab97-99a4d1ed4330
Wells, Peter
bc4fdc2d-a490-41bf-86cc-400edecf2266
Collins, Gillian
26450c2d-06de-4595-8568-6ba1dee14d77
Van Aswegen, Sivan
68316820-cf51-40bf-b85d-d30ba81ea594
Holmes, Justin D.
ecb7b5b3-fe4b-45e2-b85b-0dd7a3967a4c
Hor, T.S. Andy
927efbd5-178d-488f-a9a2-917bc2b6975c
Raja, Robert
74faf442-38a6-4ac1-84f9-b3c039cb392b
Hinde, Christopher
08da9ba4-06f6-433c-a6f9-269441ffa557
Ansovini, Davide
7ef1b9c9-d3f5-4f85-ab97-99a4d1ed4330
Wells, Peter
bc4fdc2d-a490-41bf-86cc-400edecf2266
Collins, Gillian
26450c2d-06de-4595-8568-6ba1dee14d77
Van Aswegen, Sivan
68316820-cf51-40bf-b85d-d30ba81ea594
Holmes, Justin D.
ecb7b5b3-fe4b-45e2-b85b-0dd7a3967a4c
Hor, T.S. Andy
927efbd5-178d-488f-a9a2-917bc2b6975c
Raja, Robert
74faf442-38a6-4ac1-84f9-b3c039cb392b

Hinde, Christopher, Ansovini, Davide, Wells, Peter, Collins, Gillian, Van Aswegen, Sivan, Holmes, Justin D., Hor, T.S. Andy and Raja, Robert (2015) Elucidating structure–property relationships in the design of metal nanoparticle catalysts for the activation of molecular oxygen. ACS Catalysis, 5 (6), 3807-3816. (doi:10.1021/acscatal.5b00481).

Record type: Article

Abstract

A novel synthetic strategy for the design of metal nanoparticles by extrusion of anionic chloride precursors from a porous copper chlorophosphate framework has been devised for the sustainable aerobic oxidation of vanillyl alcohol (4-hydroxy-3-methoxybenzyl alcohol) to vanillin (4-hydroxy-3-methoxybenzaldehyde) using a one-step, base-free method. The precise nature of the Au, Pt, and Pd species has been elucidated for the as-synthesized and thermally activated analogues, which exhibit fascinating catalytic properties when subjected to diverse activation environments. By employing a combination of structural and spectroscopic characterization tools, it has been shown that analogous heat treatments have differing effects on extrusion of a particular metal species. The most active catalysts in this series of materials were the extruded Pt nanoparticles that were generated by reduction in H2, which exhibit enhanced catalytic behavior, when compared to its Au or Pd counterparts, for industrially significant, aerobic oxidation reactions.

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e-pub ahead of print date: 22 May 2015
Published date: 5 June 2015
Organisations: Organic Chemistry: SCF

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Local EPrints ID: 395574
URI: http://eprints.soton.ac.uk/id/eprint/395574
ISSN: 2155-5435
PURE UUID: 1bb77f0d-cd79-4a2f-aa12-01afbe0b0bc2
ORCID for Peter Wells: ORCID iD orcid.org/0000-0002-0859-9172
ORCID for Robert Raja: ORCID iD orcid.org/0000-0002-4161-7053

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Date deposited: 01 Jun 2016 13:51
Last modified: 18 Feb 2021 17:07

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Contributors

Author: Christopher Hinde
Author: Davide Ansovini
Author: Peter Wells ORCID iD
Author: Gillian Collins
Author: Sivan Van Aswegen
Author: Justin D. Holmes
Author: T.S. Andy Hor
Author: Robert Raja ORCID iD

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