Room temperature synthesis and Li insertion into nanocrystalline rutile TiO2

被引：145

作者：

Reddy, M. Anji

Kishore, M. Satya

Pralong, V.

Caignaert, V.

Varadaraju, U. V. ^{[2
]}

Raveau, B.

机构：

[1] Indian Inst Technol, Dept Chem, Madras 600036, Tamil Nadu, India

[2] Indian Inst Technol, Mat Sci Res Ctr, Madras 600036, Tamil Nadu, India

[3] ENSICAEN, CNRS, UMR 6508, Lab CRISMAT, F-14050 Caen, France

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2006年 / 8卷 / 08期

关键词：

nanocrystalline rutile TiO2; sol gel synthesis; room temperature Li insertion; TITANIUM-DIOXIDE; HYDROTHERMAL SYNTHESIS; LITHIUM INTERCALATION; DIFFUSION; BATTERIES; CELLS; SIZE;

D O I：

10.1016/j.elecom.2006.05.021

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nanocrystalline rutile TiO2 is prepared at RT from acidic solution by sol-gel method using titanium tetraisopropoxide as precursor. Samples of varying crystallite sizes are prepared by post annealing the as synthesized rutile TiO2 at different temperatures. The absorption spectra of synthesized samples reveal a large blue shift (311 nm) vis a vis bulk rutile TiO2 (394 nm) indicating the nanocrystalline nature of the material. Electrochemical studies performed at RT show that one Li per formula unit is inserted into the nanocrystalline rutile TiO2. Variation in the voltage profiles is observed with respect to small changes in the crystallite sizes within the nanometric regime. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1299 / 1303

页数：5

共 25 条

[1] Lithium-ion intercalation into TiO2-B nanowires [J].