Open AccessThe Characterization of Lithium Titanate Microspheres Synthesized by a Hydrothermal Method
Author(s) -
Wei Liu,
Yu Wang,
Jia Xiaolin,
Baojia Xia
Publication year - 2013
Publication title -
journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.436
H-Index - 50
eISSN - 2090-9063
pISSN - 2090-9071
DOI - 10.1155/2013/497654
Subject(s) - scanning electron microscope , chemistry , mesoporous material , chemical engineering , hydrothermal circulation , lithium (medication) , raman spectroscopy , amorphous solid , lithium titanate , transmission electron microscopy , nuclear chemistry , materials science , lithium ion battery , crystallography , composite material , organic chemistry , medicine , power (physics) , physics , battery (electricity) , quantum mechanics , engineering , endocrinology , optics , catalysis
Lithium titanate microspheres were synthesized by a hydrothermal method. The structure and morphology of samples were characterized by X-ray diffraction, infrared spectroscopy, Raman spectroscopy, scanning electron microscopy, and transmission electron microscopy, respectively. The specific surface area and average pore diameter of samples were studied by N2 adsorption-desorption isotherms. The results indicated that amorphous phase changed to lithium titanium oxide hydrate, accompanying mesopores formed between agglomerated primary particles in hydrothermal reaction. After sintering, mesoporous Li4Ti5O12 microspheres assembled by nanosized particle were obtained and had a diameter of about 400–700 nm. Then, a possible formation process analogous to the Kirkendall effect was proposed. Moreover, the effect of sintering temperature on the electrochemical properties of Li4Ti5O12 microspheres was investigated
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom