TiO 2 ‐B Nanowires

News on the wires: Nanowires of the titanium dioxide polymorph TiO2-B have been synthesized in high yield by a simple hydrothermal reaction between NaOH and TiO2-anatase followed by acid washing and subsequent heat treatment (see picture). Li+ ions and electrons may be inserted into the TiO2-B nanowires, which renders them ionically and electronically conducting, and then subsequently removed. Since the discovery of carbon nanotubes much interest has been shown in the preparation of nanotubes of greater chemical complexity, especially, in recent times, oxide nanotubes. Progress in this field has been reviewed recently by Rao and Nath and by Nesper and co-workers.1 Of such materials, titanate nanotubes have…