Environmentally friendly chemical route to vanadium oxide single-crystalline nanobelts as a cathode material for lithium-ion batteries |
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Authors: | Li Guicun Pang Shuping Jiang Li Guo Zhiyan Zhang Zhikun |
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Institution: | Key Laboratory of Nanostructured Materials, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China. guicunli@qust.edu.cn |
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Abstract: | Orthorhombic V(2)O(5) single-crystalline nanobelts with widths of 100-300 nm, thicknesses of 30-40 nm, and lengths up to tens of micrometers have been synthesized on a large scale in a hydrogen peroxide aqueous solution by an environmentally friendly chemical route. Such nanobelts grow along the direction of 010]. The influence of the reaction time on the crystal structures and morphologies of the resulting products are investigated. A probable dehydration-recrystallization-cleavage mechanism for the formation of V(2)O(5) nanobelts is proposed. The experiments demonstrate that the use of a nanosized belt-like structure can considerably enhance the specific discharge capacity in lithium-ion batteries. |
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