Single and mixed phase TiO2 powders prepared by excess hydrolysis of titanium alkoxide Hanaor, Dorian en_US Karatchevtseva, Inna en_US Chironi, Ilkay en_US Triani, Gerry en_US Sorrell, Charles en_US 2021-11-25T12:25:02Z 2021-11-25T12:25:02Z 2012 en_US
dc.description.abstract To investigate the excess hydrolysis of titanium alkoxides, TiO2 powders were fabricated from titanium tetraisopropoxide using 6 : 1 and 100 : 1 H2O/Ti (r) ratios. The powders were dried and fired at a range of temperatures ((800uC). Hydroxylation and organic content in powders were characterised using attenuated total reflectance Fourier transform infrared spectroscopy (FTIR), laser Raman microspectroscopy and elemental microanalysis; surface area and pore size distribution were evaluated using N2 gas adsorption; phase composition was analysed using Xray diffraction (XRD) and laser Raman microspectroscopy; and crystallite size was evaluated by XRD, TEM and SEM. Results showed near complete hydrolysis in a predominantly aqueous medium (r5100), resulting in precipitated crystalline powders exhibiting brookite and anatase, which begin to transform to rutile below 500uC. The powders precipitated in a predominantly organic medium (r56) underwent partial hydrolysis, were highly porous and exhibited an amorphous structure, with the crystallisation of anatase occurring at y300uC and the transformation to rutile beginning at 500–600uC. en_US
dc.identifier.issn 1743-6761 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.subject.other Organometallic en_US
dc.subject.other TiO2 en_US
dc.subject.other Hydrolysis en_US
dc.subject.other Powder en_US
dc.title Single and mixed phase TiO2 powders prepared by excess hydrolysis of titanium alkoxide en_US
dc.type Journal Article en
dcterms.accessRights open access
dspace.entity.type Publication en_US
unsw.description.publisherStatement Website: en_US
unsw.identifier.doiPublisher en_US
unsw.relation.faculty Science
unsw.relation.ispartofissue 3 en_US
unsw.relation.ispartofjournal Advances in Applied Ceramics en_US
unsw.relation.ispartofpagefrompageto 149-158 en_US
unsw.relation.ispartofvolume 111 en_US
unsw.relation.originalPublicationAffiliation Hanaor, Dorian, Materials Science & Engineering, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Karatchevtseva, Inna, ANSTO en_US
unsw.relation.originalPublicationAffiliation Chironi, Ilkay, ANSTO en_US
unsw.relation.originalPublicationAffiliation Triani, Gerry, ANSTO en_US
unsw.relation.originalPublicationAffiliation Sorrell, Charles, Materials Science & Engineering, Faculty of Science, UNSW en_US School of Materials Science & Engineering *
unsw.subject.fieldofresearchcode 100708 Nanomaterials en_US
unsw.subject.fieldofresearchcode 030306 Synthesis of Materials en_US
unsw.subject.fieldofresearchcode 091201 Ceramics en_US
unsw.subject.fieldofresearchcode 090608 Renewable Power and Energy Systems Engineering (excl. Solar Cells) en_US
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