文摘
Here, we report the first synthesis of TiO2−B@C core−shell nanoribbons by a simple hydrothermal route. The as-prepared single-crystalline TiO2−B nanoribbon cores are up to tens of micrometers in length and 50−200 nm in width. The nanoribbons are sheathed with a thin layer of carbon. The possible formation mechanism of the TiO2−B@C core−shell nanoribbons has been elucidated. Furthermore, we tested the electrochemical intercalation properties with Li+ of the as-prepared TiO2−B@C nanoribbons, which showed higher discharge capacity than those of bare TiO2−B nanowires and nanotubes. It was found that the morphology and the structure of the TiO2−B@C nanoribbons had important influence on the electrochemical intercalation properties.