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Synthesis and Characterization of Tin Titanate Nanotubes: Precursors for Nanoparticulate Sn‐Doped TiO 2 Anodes with Synergistically Improved Electrochemical Performance
Author(s) -
Wang Hongkang,
Xi Liujiang,
Tucek Jiri,
Ma Chuansheng,
Yang Guang,
Leung Michael K. H.,
Zboril Radek,
Niu Chunming,
Rogach Andrey L.
Publication year - 2014
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201402188
Subject(s) - materials science , titanate , tin , lithium titanate , anode , crystallinity , chemical engineering , doping , electrochemistry , nanoparticle , inorganic chemistry , nanotechnology , lithium ion battery , composite material , metallurgy , electrode , chemistry , ceramic , battery (electricity) , optoelectronics , engineering , power (physics) , physics , quantum mechanics
The synthesis of tin–titanate nanotubes (Sn‐titanate) by reacting hydrogen titanate (H‐titanate) with a tin salt through ion adsorption–incorporation is reported. The interactions between tin(II) ions and H‐titanate are thoroughly investigated. Tin ions can be easily adsorbed by H‐titanate, owing to its large surface area and lattice spacing, and the negatively charged layered structures. With Sn‐titanate nanotubes as precursors, Sn‐doped TiO 2 nanoparticles are prepared by annealing and are investigated as anode materials in lithium‐ion batteries, which show much enhanced capacity and rate capability. Such improved electrochemical properties of Sn‐doped TiO 2 benefit from structural characteristics such as the small size of the constituent nanoparticles, high crystallinity, and uniform tin doping. This synthetic strategy towards Sn‐doped TiO 2 anode materials, thus offers the synergistic effect of combining the advantages of TiO 2 (cycle life and rate) and SnO 2 (high capacity).