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Speciation in diethanolamine-moderated TiO2 precursor sols and their use in film formation

Speciation in diethanolamine-moderated TiO2 precursor sols and their use in film formation
Speciation in diethanolamine-moderated TiO2 precursor sols and their use in film formation
The phase behaviour of TiO2 films and powders produced from Ti(OiPr)4-based sols in ethanol modified with diethanolamine is investigated. The anatase/rutile phase concentrations vary with conditions and are correlated with samples from an acid-catalysed sol used in the same way to make films and powders. Diethanolamine is effective in increasing smoothness of films and reducing cracking, but also results in rutile formation when samples are heated at 600 °C. Mass spectrometry and nuclear magnetic spectroscopy were used to interrogate the species present in solution, where specific cluster types were found to be prominent and the diethanolamine was shown to coordinate to titanium to via all three donor atoms.
0928-0707
1-22
Al-Arjan, Wafa
46e5a55e-c0b2-4509-ab95-4f97f5c0c5c0
Hector, Andrew
f19a8f31-b37f-4474-b32a-b7cf05b9f0e5
Levason, William
e7f6d7c7-643c-49f5-8b57-0ebbe1bb52cd
Al-Arjan, Wafa
46e5a55e-c0b2-4509-ab95-4f97f5c0c5c0
Hector, Andrew
f19a8f31-b37f-4474-b32a-b7cf05b9f0e5
Levason, William
e7f6d7c7-643c-49f5-8b57-0ebbe1bb52cd

Al-Arjan, Wafa, Hector, Andrew and Levason, William (2016) Speciation in diethanolamine-moderated TiO2 precursor sols and their use in film formation. Journal of Sol-Gel Science and Technology, 1-22. (doi:10.1007/s10971-016-4032-1). (In Press)

Record type: Article

Abstract

The phase behaviour of TiO2 films and powders produced from Ti(OiPr)4-based sols in ethanol modified with diethanolamine is investigated. The anatase/rutile phase concentrations vary with conditions and are correlated with samples from an acid-catalysed sol used in the same way to make films and powders. Diethanolamine is effective in increasing smoothness of films and reducing cracking, but also results in rutile formation when samples are heated at 600 °C. Mass spectrometry and nuclear magnetic spectroscopy were used to interrogate the species present in solution, where specific cluster types were found to be prominent and the diethanolamine was shown to coordinate to titanium to via all three donor atoms.

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Accepted/In Press date: 25 March 2016
Organisations: Electrochemistry, Organic Chemistry: SCF

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Local EPrints ID: 390474
URI: https://eprints.soton.ac.uk/id/eprint/390474
ISSN: 0928-0707
PURE UUID: 272c7290-0785-43b5-a88f-fe2e51b07bf4
ORCID for Andrew Hector: ORCID iD orcid.org/0000-0002-9964-2163
ORCID for William Levason: ORCID iD orcid.org/0000-0003-3540-0971

Catalogue record

Date deposited: 04 Apr 2016 09:20
Last modified: 06 Jun 2018 13:17

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Contributors

Author: Wafa Al-Arjan
Author: Andrew Hector ORCID iD
Author: William Levason ORCID iD

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