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Pd local structure and size correlations to the activity of Pd/TiO2 for photocatalytic reforming of methanol

Pd local structure and size correlations to the activity of Pd/TiO2 for photocatalytic reforming of methanol
Pd local structure and size correlations to the activity of Pd/TiO2 for photocatalytic reforming of methanol
The interaction between Pd and TiO2 for promoting photocatalytic activity was investigated by tailoring the size of Pd nanoparticles and monitoring the photocatalytic activity of methanol photo-reforming reaction for hydrogen gas production. We show that at 0.6 wt% Pd loading, the catalyst with highly dispersed nanoparticles obtained at 1 °C temperature exhibits superior photocatalytic activity for hydrogen gas production. At different weights of Pd loading, tailoring two sets of catalysts with different structural properties provides correlation between the changes in the Pd local structures and the rate of hydrogen production. The impact of controlling the structural properties of metal nanoparticles on influencing H2 production outweighs the effect of metal loading variation. The differences of Pd/TiO2 activity at the different metal loadings were correlated with the changes in the Pd local structure consequently affecting the electronic transfer and photocatalytic efficiency.
1463-9076
16154-16160
Abdullah, Norli
b891e5ce-e2ec-4a66-84c9-26d54fce159b
Bahruji, Hasliza
7aec4030-10dd-4767-8ca2-0e39729efa39
Rogers, Scott M.
81804d0d-1f08-4a12-b6c8-56d7d45a039b
Wells, Peter P.
bc4fdc2d-a490-41bf-86cc-400edecf2266
Catlow, C. Richard A.
50b88125-9415-4b37-9146-af6783e42510
Bowker, Michael
c9ab10a5-d144-4533-bf6d-2fa16b669565
Abdullah, Norli
b891e5ce-e2ec-4a66-84c9-26d54fce159b
Bahruji, Hasliza
7aec4030-10dd-4767-8ca2-0e39729efa39
Rogers, Scott M.
81804d0d-1f08-4a12-b6c8-56d7d45a039b
Wells, Peter P.
bc4fdc2d-a490-41bf-86cc-400edecf2266
Catlow, C. Richard A.
50b88125-9415-4b37-9146-af6783e42510
Bowker, Michael
c9ab10a5-d144-4533-bf6d-2fa16b669565

Abdullah, Norli, Bahruji, Hasliza, Rogers, Scott M., Wells, Peter P., Catlow, C. Richard A. and Bowker, Michael (2019) Pd local structure and size correlations to the activity of Pd/TiO2 for photocatalytic reforming of methanol. Physical Chemistry Chemical Physics, 2019 (21), 16154-16160. (doi:10.1039/C9CP00826H).

Record type: Article

Abstract

The interaction between Pd and TiO2 for promoting photocatalytic activity was investigated by tailoring the size of Pd nanoparticles and monitoring the photocatalytic activity of methanol photo-reforming reaction for hydrogen gas production. We show that at 0.6 wt% Pd loading, the catalyst with highly dispersed nanoparticles obtained at 1 °C temperature exhibits superior photocatalytic activity for hydrogen gas production. At different weights of Pd loading, tailoring two sets of catalysts with different structural properties provides correlation between the changes in the Pd local structures and the rate of hydrogen production. The impact of controlling the structural properties of metal nanoparticles on influencing H2 production outweighs the effect of metal loading variation. The differences of Pd/TiO2 activity at the different metal loadings were correlated with the changes in the Pd local structure consequently affecting the electronic transfer and photocatalytic efficiency.

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C9CP00826H - Accepted Manuscript
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PCCP paper - Accepted Manuscript
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More information

Accepted/In Press date: 25 June 2019
e-pub ahead of print date: 25 June 2019
Published date: 7 August 2019

Identifiers

Local EPrints ID: 432653
URI: http://eprints.soton.ac.uk/id/eprint/432653
ISSN: 1463-9076
PURE UUID: 1b6f6aef-2ee4-450a-b5f3-7ac20c1851ce
ORCID for Peter P. Wells: ORCID iD orcid.org/0000-0002-0859-9172

Catalogue record

Date deposited: 23 Jul 2019 16:30
Last modified: 16 Mar 2024 08:01

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Contributors

Author: Norli Abdullah
Author: Hasliza Bahruji
Author: Scott M. Rogers
Author: Peter P. Wells ORCID iD
Author: C. Richard A. Catlow
Author: Michael Bowker

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