期刊
NANOSCALE
卷 5, 期 21, 页码 10518-10524出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr03009a
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资金
- EPSRC
- European Community [246124, 259619 PHOTO EM]
- German National Academy of Sciences Leopoldina [LPDS2012-13]
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.
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