Effects of precursor solution aging and other parameters on synthesis of ordered mesoporous titania powders

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dc.contributor.authorVeliscek-Carolan, Jen_AU
dc.contributor.authorKnott, RBen_AU
dc.contributor.authorHanley, TLen_AU
dc.date.accessioned2018-09-21T00:07:37Zen_AU
dc.date.available2018-09-21T00:07:37Zen_AU
dc.date.issued2015-03-11en_AU
dc.date.statistics2018-09-19en_AU
dc.description.abstractEvaporation-induced self-assembly (EISA) of ordered mesoporous titania powders using block copolymer templates Brij 58 and F127 has been studied as a function of the precursor solution composition and age as well as the evaporation conditions. Small-angle X-ray scattering was used to monitor the degree of order in the mesoporous structure of materials synthesized under these varying conditions. Also, for the first time, the time-dependent formation of Ti structures in precursor solutions and the effect of those structures on the creation of mesostructural order have been demonstrated. The interactions of the Ti precursor with Brij 58 and F127 were investigated and showed that the different templates caused formation of Ti oligomers of unique sizes and structures. Precursor solution composition and evaporation conditions were also shown to affect the order and stability of the mesoporous titania produced. Overall, this systematic study has provided fundamental insights into the synthesis conditions that maximize the degree of order and thermal stability of the final materials. These “optimal” conditions are highly dependent on the choice of template. As a result of this improved understanding, the synthesis of ordered mesoporous titania powders using the block copolymer F127 as a template has been achieved without the use of stabilizing agents for the first time. © 2015 American Chemical Societyen_AU
dc.identifier.citationVeliscek-Carolan, J., Knott, R., & Hanley, T. (2015). Effects of precursor solution aging and other parameters on synthesis of ordered mesoporous titania powders. The Journal of Physical Chemistry C, 119(13), 7172-7183. doi:10.1021/jp5127927en_AU
dc.identifier.govdoc8892en_AU
dc.identifier.issn1932-7455en_AU
dc.identifier.issue13en_AU
dc.identifier.journaltitleThe Journal of Physical Chemistry Cen_AU
dc.identifier.pagination7172-7183en_AU
dc.identifier.urihttps://doi.org/10.1021/jp5127927en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9028en_AU
dc.identifier.volume119en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectEvaporationen_AU
dc.subjectSmall angle scatteringen_AU
dc.subjectMaterialsen_AU
dc.subjectSynthesisen_AU
dc.subjectSolutionsen_AU
dc.subjectCopolymersen_AU
dc.subjectThin filmsen_AU
dc.titleEffects of precursor solution aging and other parameters on synthesis of ordered mesoporous titania powdersen_AU
dc.typeJournal Articleen_AU
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