X-ray-induced reduction of a surfactant/polyoxotungstate hybrid compound

Colusso, AV; McDonagh, A; Cortie, MB

X-ray-induced reduction of a surfactant/polyoxotungstate hybrid compound

Colusso, AV McDonagh, A

Cortie, MB

Permalink

Publication Type:: Journal Article
Citation:: Surface and Interface Analysis, 2018, 50 (12-13), pp. 1384 - 1388
Issue Date:: 2018-12-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Accepted Manuscript versionAdobe PDF (313.13 kB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Colusso, AV	en_US
dc.contributor.author	McDonagh, A https://orcid.org/0000-0002-9502-1175	en_US
dc.contributor.author	Cortie, MB https://orcid.org/0000-0003-3202-6398	en_US
dc.date.available	2020-05-25T19:17:27Z
dc.date.issued	2018-12-01	en_US
dc.identifier.citation	Surface and Interface Analysis, 2018, 50 (12-13), pp. 1384 - 1388	en_US
dc.identifier.issn	0142-2421	en_US
dc.identifier.uri	http://hdl.handle.net/10453/134007
dc.description.abstract	© 2018 John Wiley & Sons, Ltd. We investigate the spontaneous reduction of a photochromic surfactant/polyoxotungstate hybrid during repeated X-ray photoelectron spectroscopy (XPS) scans and show how this effect may confound attempts to use soft X-rays to characterise materials of this nature. The W4f core-level spectra revealed a progressive increase of W5+ and W4+ species at the expense of W6+ as irradiation time increased. The samples developed a blue colour attributed to the presence of W4+ and/or W5+. The progressive photoreduction is also associated with a shift of the W6+ peak within the W4f spectrum to lower binding energies. This work highlights the need to consider inadvertent changes in oxidation state during X-ray photoelectron spectroscopy characterisation of samples containing photoreducible transition metals.	en_US
dc.relation.ispartof	Surface and Interface Analysis	en_US
dc.relation.isbasedon	10.1002/sia.6516	en_US
dc.subject.classification	Applied Physics	en_US
dc.title	X-ray-induced reduction of a surfactant/polyoxotungstate hybrid compound	en_US
dc.type	Journal Article
utslib.citation.volume	12-13	en_US
utslib.citation.volume	50	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	0204 Condensed Matter Physics	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	open_access
pubs.issue	12-13	en_US
pubs.publication-status	Published	en_US
pubs.volume	50	en_US

Abstract:

© 2018 John Wiley & Sons, Ltd. We investigate the spontaneous reduction of a photochromic surfactant/polyoxotungstate hybrid during repeated X-ray photoelectron spectroscopy (XPS) scans and show how this effect may confound attempts to use soft X-rays to characterise materials of this nature. The W4f core-level spectra revealed a progressive increase of W5+ and W4+ species at the expense of W6+ as irradiation time increased. The samples developed a blue colour attributed to the presence of W4+ and/or W5+. The progressive photoreduction is also associated with a shift of the W6+ peak within the W4f spectrum to lower binding energies. This work highlights the need to consider inadvertent changes in oxidation state during X-ray photoelectron spectroscopy characterisation of samples containing photoreducible transition metals.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/134007