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Low temperature crystallisation of mesoporous TiO2

Kohn, P; Pathak, S; Stefik, M; Ducati, C; Wiesner, U; Steiner, U; Guldin, S; (2013) Low temperature crystallisation of mesoporous TiO2. Nanoscale , 5 , Article 21. 10.1039/c3nr03009a. Green open access

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Abstract

Conducting mesoporous TiO2 is rapidly gaining importance for green energy applications. To optimise performance, its porosity and crystallinity must be carefully fine-tuned. To this end, we have performed a detailed study on the temperature dependence of TiO2 crystallisation in mesoporous films. Crystal nucleation and growth of initially amorphous TiO2 derived by hydrolytic sol-gel chemistry is compared to the evolution of crystallinity from nanocrystalline building blocks obtained from non-hydrolytic solgel chemistry, and mixtures thereof. Our study addresses the question whether the critical temperature for crystal growth can be lowered by the addition of crystalline nucleation seeds.

Type: Article
Title: Low temperature crystallisation of mesoporous TiO2
Open access status: An open access version is available from UCL Discovery
DOI: 10.1039/c3nr03009a
Publisher version: http://dx.doi.org/10.1039/c3nr03009a
Language: English
Additional information: Copyright © The Royal Society of Chemistry 2013.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/1446964
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