Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 2, Issue 31, Pages 12571-12575Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta02029d
Keywords
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Funding
- National Natural Science Foundation of China [51010002, 51272229, 51272231]
- Zhejiang Provincial Natural Science Foundation of China [LR13E020001]
- Qianjiang Talent Project [QJD1302009]
- Welch Foundation [AX-1730]
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Porous anatase TiO2 has been prepared, for the first time, through the calcination of a metal-organic framework (MOF) precursor under an air atmosphere at 380 degrees C. The resulting TiO2 has shown moderate porosity with a BET surface area of 220 m(2) g(-1) attributed to the highly porous structure of the MIL-125(Ti) precursor. The porous anatase TiO2 was examined as a lithium-ion battery anode, exhibiting high capacity retention and good rate capability. The porous structure of anatase TiO2 enforces Li+ diffusion and helps to buffer the volumetric variation. It has shown reversible capacities of 166, 106 and 71 mA h g(-1) at 1 C, 5 C and 10 C charge/discharge rates, respectively, after 500 cycles.
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