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Simple preparation of petal-like TiO2 nanosheets as anode materials for lithium-ion batteries.
- Source :
-
Ceramics International . Dec2014:Part B, Vol. 40 Issue 10, p16805-16810. 6p. - Publication Year :
- 2014
-
Abstract
- We demonstrate a simple and green approach for the synthesis of one kind of anatase TiO 2 nanosheets. The method is based on a hydrothermal method under normal atmosphere without using the complex Teflon-lined autoclave, high concentrations NaOH solution and long reaction time. The as-prepared materials are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET) and electrochemical measurements. The obtained anatase TiO 2 nanosheets show excellent performance. There is one pair of potential plateaus at 1.7 and 1.9 V in the process of Li insertion and extraction, and the initial Li insertion/extraction capacities are 382 and 326 mA h g −1 at the current density of 20 mA g −1 , respectively. After 50 cycles, the TiO 2 retains 93% of the initial charge capacity at the current density of 400 mA g −1 . [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 40
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 98150213
- Full Text :
- https://doi.org/10.1016/j.ceramint.2014.07.060