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Single-crystalline rutile TiO2 nanowires for improved lithium ion intercalation properties
- Issue Date
- 15-Jan-2013
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Single-crystalline; Rutile; TiO2; Nanowire; Lithium intercalation
- Citation
- JOURNAL OF POWER SOURCES, v.222, pp.225 - 229
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 222
- Start Page
- 225
- End Page
- 229
- ISSN
- 0378-7753
- Abstract
- We report single-crystalline TiO2 nanowires (TiO2-NWs) synthesized by hydrothermal process without any surfactant and template with enhanced lithium intercalation properties. The single-crystalline nature of rutile TiO2-NWs was clearly observed by field-emission transmission electron microscopy and fast Fourier transform pattern demonstrating that the nanowire growth is along the [001] direction. The single-crystalline rutile TiO2-NWs showed much higher charge capacity and excellent high-rate performance as compared to typical rutile TiO2 nanoparticles. The improved lithium-ion intercalation properties of TiO2-NWs may be attributed to relatively large specific surface area, short transport distance of 1-D nanostructure, and freedom for volume change accompanied by lithium-ion intercalation. (C) 2012 Elsevier B.V. All rights reserved.
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Related Researcher
- PARK, KYUNG WON
- College of Engineering (Department of Chemical)