title: Flower-like surface modification of titania materials by lithium hydroxide solution.
abstract: 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 °C, while the crystal phase transforms into Li(4)Ti(5)O(12).
authors.affiliation: Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan. h_george@kuchem.kyoto-u.ac.jp
authors.forename: George
authors.initials: G
authors.lastname: Hasegawa
authors.forename: Kazuyoshi
authors.initials: K
authors.lastname: Kanamori
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Sugawara
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Ikuhara
authors.forename: Kazuki
authors.initials: K
authors.lastname: Nakanishi