TiO2 Hollow Spheres Composed of Highly Crystalline Nanocrystals Exhibit Superior Lithium Storage Properties
- Title
- TiO2 Hollow Spheres Composed of Highly Crystalline Nanocrystals Exhibit Superior Lithium Storage Properties
- Author
- 백운규
- Keywords
- electron microscopy; hollow spheres; lithium storage; nanostructures; titania
- Issue Date
- 2014-11
- Publisher
- WILEY-V C H VERLAG GMBH, BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
- Citation
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 권: 53, 호: 46, 페이지: 12590-12593
- Abstract
- While the synthesis of TiO2 hollow structures is well-established, in most cases it is particularly difficult to control the crystallization of TiO2 in solution or by calcination. As a result, TiO2 hollow structures do not really exhibit enhanced lithium storage properties. Herein, we report a simple and cost-effective template-assisted method to synthesize anatase TiO2 hollow spheres composed of highly crystalline nanocrystals, in which carbonaceous (C)spheres are chosen as the removable template. The release of gaseous species from the combustion of Cspheres may inhibit the growth of TiO2 crystallites so that instead small TiO2 nanocrystals are generated. The small size and high crystallinity of primary TiO2 nanoparticles and the high structural integrity of the hollow spheres gives rise to significant improvements in the cycling stability and rate performance of the TiO2 hollow spheres.
- URI
- https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201406476http://hdl.handle.net/20.500.11754/50879
- ISSN
- 1433-7851; 1521-3773
- DOI
- 10.1002/anie.201406476
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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