title: Sustainable synthesis of niobia thin films with open mesopore channels.
abstract: The current approaches to electrochemically synthesizing valve metal-derived nanochannel films with longitudinal nanospaces aligned at a right angle to planar substrates rely on highly toxic fluoride compounds and require severe reaction conditions. Herein, we report on a fluoride-free, room-temperature electrochemical synthesis of a genuine mesoporous niobia thin film from the parent metal. The electrochemical reaction is driven by only a 1 V bias with respect to a Pt counter electrode in an aqueous solution. The solution contained an inexpensive, less toxic potassium hydroxide, and the reaction produced favorable byproducts, namely, recyclable K8Nb6O19 and H2.
authors: Department of Materials Science and Technology, Faculty of Engineering, Niigata University , 8050 Ikarashi-2, Niigata 950-2181, Japan.
authors: Kenji
authors: K
authors: Saito
authors: Yuki
authors: Y
authors: Sato
authors: Shohei
authors: S
authors: Okuyama
authors: Kazuki
authors: K
authors: Matsubara
authors: Tatsuto
authors: T
authors: Yui
authors: Masayuki
authors: M
authors: Yagi