Flower-like surface modification of titania materials by lithium hydroxide solution

JOURNAL OF COLLOID AND INTERFACE SCIENCE

卷:374

Article

Hasegawa, George¹  Kanamori, Kazuyoshi¹  Sugawara, Yoshihiro²  Ikuhara, Yuichi^2,3  Nakanishi, Kazuki¹ 

[1] Kyoto Univ, Dept Chem, Grad Sch Sci, Sakyo Ku, Kyoto 6068502, Japan

[2] Japan Fine Ceram Ctr, Atsuta Ku, Nagoya, Aichi 4568587, Japan

[3] Univ Tokyo, Inst Engn Innovat, Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan

关键词: Surface modification;    Flower-like structure;    Titania;    Crystalline layered titanate;    Lithium intercalation;   

DOI  :  10.1016/j.jcis.2012.02.002

来源: Elsevier

【 摘 要 】

Surface modification of titania materials to give flower-like structures has been achieved simply by the treatment in lithium hydroxide aqueous solution under mild conditions. The flower-like structured materials were characterized by X-ray diffraction, thermogravimetric analysis, and Raman scattering. The analyses indicate that the flower-like materials are composed of layered hydrous lithium titanate. It is suggested that the unique intercalation behavior of lithium ions into titania allows dissolution and re-precipitation of titania to form the flower-like structure. The obtained flower-like structure can be retained up to 700 degrees C, while the crystal phase transforms into Li4Ti5O12. (C) 2012 Elsevier Inc. All rights reserved.

【 授权许可】

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