title: In situ templated synthesis of anatase single-crystal nanotube arrays.
abstract: Anatase single-crystal nanotubes were obtained using an in situ templated method. First, highly ordered titania arrays were formed through an anodization process in H(3)PO(4) electrolytes containing 0.5 wt% HF. Under optimized conditions titania nanotubes with a diameter of up to 100 nm and a length of up to 1.1 microm were prepared. Second, the crystallization and stability of the titania nanotubes were studied in air at elevated temperatures. Anatase single-crystal nanotubes were fabricated after annealing the sample in air at 450 degrees C. The anatase single-crystal structure was verified by selected area diffraction pattern and HRTEM images.
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
authors.forename: Jianling
authors.initials: J
authors.lastname: Zhao
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Wang
authors.forename: Tieyu
authors.initials: T
authors.lastname: Sun
authors.forename: Longtu
authors.initials: L
authors.lastname: Li