The study on structure and electrochemical sodiation of one-dimensional nanocrystalline TiO2@C nanofiber composites
By Yeqian Ge and Jiadeng Zhu and Yao Lu and Chen Chen and Yiping Qiu and Xiangwu Zhang
Published in Electrochimica Acta
2015
Abstract
Titanium dioxide (TiO2) is a prospective anode candidate for sodium-ion batteries, owing to the advantages of good chemical stability, elemental abundance and nontoxicity. In this work, TiO2 embedded in carbon nanofiber (TiO2@CNF) composites are prepared for high-performance sodium-ion batteries by electrospinning and subsequent heat treatment in \N2\ at different temperatures. With increase in heat-treatment temperature, the diameter of nanofibers decreases and the crystal phase partially transforms from anatase to rutile. Among all composites, the TiO2@CNF composite treated at 550