Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 681, Issue -, Pages 471-476Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.04.086
Keywords
TiO2(B); Hollow nanostructures; Li-ion batteries
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Funding
- Postdoctoral Foundation of China
- National Science Foundation of China [51275203]
- Key Scientific and Technological Project of Jilin Province [20140204052GX]
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University [201505]
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This article deduces the formation mechanism of hollow TiO2(B) nanocrystals by Oriented Attachment and Kirkendall effect. Charge density distribution and total energy can be calculated using SCC-DV-X alpha-ECM. The diameter of the hollow nanocrystals is about 10-18 nm and the wall thickness of hollow nanocrystals is about 3-5 nm. The dimensions are smaller than other previous reports. In addition, their best discharge specific capacity has already reached nearly 360 mAhg(-1) at 0.2 C. Comparing with other structures of TiO2(B), the hollow nanocrystals have a high rate capability and stable cycling. (C) 2016 Published by Elsevier B.V.
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