Photocatalytic hydrogen production by reforming of methanol using Au/TiO2, Ag/TiO2and Au-Ag/TiO2catalysts
Photocatalytic hydrogen production by reforming of methanol using Au/TiO2, Ag/TiO2and Au-Ag/TiO2catalysts
We have investigated polyvinylalcohol stabilized Au and Ag based nanoparticles supported on titania prepared via sol immobilisation for the anaerobic, ambient temperature reforming of methanol with water for the photocatalytic production of hydrogen. The catalytic activity of the Au/TiO2 catalysts was strongly affected by the metal loading and calcination temperature. Here, we report the preparation and use of supported Au–Ag nanoparticles, based on either the co-reduction or the consecutive reduction of the two metals. Au–Ag supported catalysts were more active than monometallic Au and Ag catalysts and the preparation methodology had a pronounced effect in terms of catalytic activity of the Au–Ag catalysts. In fact, using a consecutive reduction where Au was firstly reduced followed by reduction of Ag gave materials which exhibited the highest catalytic performance.
35-43
Kennedy, Julia
40a70b27-64e5-43ca-96b8-0cd9206f481e
Jones, Wilm
14b97080-56bc-4e8b-835b-72ad31ac4bc4
Morgan, David J.
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Bowker, Michael
c9ab10a5-d144-4533-bf6d-2fa16b669565
Lu, Li
4f34edb1-6778-43e6-b0ad-ae556395f6c0
Kiely, Christopher J.
431afe51-dda4-44fb-a889-8f0e95a1b902
Wells, Peter P.
bc4fdc2d-a490-41bf-86cc-400edecf2266
Dimitratos, Nikolaos
a4385576-4a05-478b-8389-460bfb43412b
January 2015
Kennedy, Julia
40a70b27-64e5-43ca-96b8-0cd9206f481e
Jones, Wilm
14b97080-56bc-4e8b-835b-72ad31ac4bc4
Morgan, David J.
a54eaa5b-09bc-4185-8f18-dfc1eeeb310e
Bowker, Michael
c9ab10a5-d144-4533-bf6d-2fa16b669565
Lu, Li
4f34edb1-6778-43e6-b0ad-ae556395f6c0
Kiely, Christopher J.
431afe51-dda4-44fb-a889-8f0e95a1b902
Wells, Peter P.
bc4fdc2d-a490-41bf-86cc-400edecf2266
Dimitratos, Nikolaos
a4385576-4a05-478b-8389-460bfb43412b
Kennedy, Julia, Jones, Wilm, Morgan, David J., Bowker, Michael, Lu, Li, Kiely, Christopher J., Wells, Peter P. and Dimitratos, Nikolaos
(2015)
Photocatalytic hydrogen production by reforming of methanol using Au/TiO2, Ag/TiO2and Au-Ag/TiO2catalysts.
Catalysis Structure & Reactivity, 1 (1), .
(doi:10.1179/2055075814Y.0000000006).
Abstract
We have investigated polyvinylalcohol stabilized Au and Ag based nanoparticles supported on titania prepared via sol immobilisation for the anaerobic, ambient temperature reforming of methanol with water for the photocatalytic production of hydrogen. The catalytic activity of the Au/TiO2 catalysts was strongly affected by the metal loading and calcination temperature. Here, we report the preparation and use of supported Au–Ag nanoparticles, based on either the co-reduction or the consecutive reduction of the two metals. Au–Ag supported catalysts were more active than monometallic Au and Ag catalysts and the preparation methodology had a pronounced effect in terms of catalytic activity of the Au–Ag catalysts. In fact, using a consecutive reduction where Au was firstly reduced followed by reduction of Ag gave materials which exhibited the highest catalytic performance.
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Accepted/In Press date: 12 November 2014
e-pub ahead of print date: 29 December 2014
Published date: January 2015
Organisations:
Organic Chemistry: SCF
Identifiers
Local EPrints ID: 400557
URI: http://eprints.soton.ac.uk/id/eprint/400557
ISSN: 2055-074X
PURE UUID: f1778e76-bbe7-43a6-b530-22525498c3b1
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Date deposited: 19 Sep 2016 10:54
Last modified: 15 Mar 2024 03:24
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Contributors
Author:
Julia Kennedy
Author:
Wilm Jones
Author:
David J. Morgan
Author:
Michael Bowker
Author:
Li Lu
Author:
Christopher J. Kiely
Author:
Nikolaos Dimitratos
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