期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 21, 期 41, 页码 14454-14459出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201502352
关键词
graphene; hydrothermal synthesis; lithium; mesoporous materials; titanium
资金
- NSFC [21271108, 21273118]
- China-US Center for Environmental Remediation and Sustainable Development
- Tianjin Municipal Science and Technology Commission [11JCZDJC24800]
- MOE Innovation Team in China [IRT13022]
- Ph.D. Candidate Research Innovation Fund of Nankai University
Although the synthesis of mesoporous materials is well established, the preparation of TiO2 fiber bundles with mesostructures, highly crystalline walls, and good thermal stability on the RGO nanosheets remains a challenge. Herein, a low-cost and environmentally friendly hydrothermal route for the synthesis of RGO nanosheet-supported anatase TiO2 fiber bundles with dense mesostructures is used. These mesostructured TiO2-RGO materials are used for investigation of Li-ion insertion properties, which show a reversible capacity of 235 mA hg(-1) at 200 mA g(-1) and 150 mA hg(-1) at 1000 mA g(-1) after 1000 cycles. The higher specific surface area of the new mesostructures and high conductive substrate (RGO nanosheets) result in excellent lithium storage performance, high-rate performance, and strong cycling stability of the TiO2-RGO composites.
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