Gao, Z;
Hao, Z;
Yi, M;
Huang, Y;
Xu, Y;
Zhao, Y;
Li, Z;
... Yang, X; + view all
(2018)
Correlation between Mechanical Strength of Amorphous TiO2 Nanotubes and Their Solid State Crystallization Pathways.
ChemistrySelect
, 3
(38)
pp. 10711-10716.
10.1002/slct.201802588.
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Abstract
Developing TiO2 crystals with specific morphologies and nanostructured architectures is highly desirable in energy storage, conversion and catalysis applications. Thermally activated amorphous‐to‐crystal transition provides effective growth of poly or monocrystalline TiO2, while an in‐depth understanding of different crystallization pathways at the solid state is still lacking. Herein, we report a close correlation between mechanical strength of the TiO2 precursors and their different crystallization pathways. Two different morphologies, i. e., well‐defined anatase TiO2 single nanocrystals and anatase polycrystalline nanotubes are obtained via rapid heating of two amorphous TiO2 precursors with distinctive mechanical strengths. The mechanical‐strength‐dependent crystallization from amorphous solid‐state precursors provides additional control on the crystallization pathway and thus the desirable properties of the resultant nanostructures. In this study, the well‐defined anatase nanocrystals with controlled morphology show higher storage capacity of sodium ion than that of polycrystalline ones in sodium ion batteries.
| Type: | Article |
|---|---|
| Title: | Correlation between Mechanical Strength of Amorphous TiO2 Nanotubes and Their Solid State Crystallization Pathways |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/slct.201802588 |
| Publisher version: | https://doi.org/10.1002/slct.201802588 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL 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-pp.ucl.ac.uk/id/eprint/10081071 |
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