TiO2 nanoflakes were prepared by hydrothermal precipitation method using Ti（SO4）2 as titanium source and NaOH solution as alkaline medium. Their surface morphology, grain size measured after high temperature calci- ...TiO2 nanoflakes were prepared by hydrothermal precipitation method using Ti（SO4）2 as titanium source and NaOH solution as alkaline medium. Their surface morphology, grain size measured after high temperature calci- nation and effect on the electrochemical performance of Li ion battery were discussed. TiO2 nanoflakes were charac- terizated by means of transmission electron microscopy（TEM）, X-ray powder diffraction（XRD）, N2 adsorp- tion-desorption isothermal assay, cyclic voltammetry（CV） and cycle performance test. The result of electrochemical performance test shows that the prepared TiO2 nanoflakes have high discharge specific capacity and good cycle per- formance. Discharge specific capacity for the first circle at the discharge rate of 0.1 C is 261.5 mA·h·g-1. After 90 cycles, the discharge capacity reduces to 172.2 mA·h·g-1.展开更多
文摘TiO2 nanoflakes were prepared by hydrothermal precipitation method using Ti（SO4）2 as titanium source and NaOH solution as alkaline medium. Their surface morphology, grain size measured after high temperature calci- nation and effect on the electrochemical performance of Li ion battery were discussed. TiO2 nanoflakes were charac- terizated by means of transmission electron microscopy（TEM）, X-ray powder diffraction（XRD）, N2 adsorp- tion-desorption isothermal assay, cyclic voltammetry（CV） and cycle performance test. The result of electrochemical performance test shows that the prepared TiO2 nanoflakes have high discharge specific capacity and good cycle per- formance. Discharge specific capacity for the first circle at the discharge rate of 0.1 C is 261.5 mA·h·g-1. After 90 cycles, the discharge capacity reduces to 172.2 mA·h·g-1.
