title: Ordered "superlattice" TiO2/Nb2O5 nanotube arrays with improved ion insertion stability.
abstract: Self-ordered TiO(2)/Nb(2)O(5) "superlattice" nanotube arrays are successfully fabricated by electrochemical anodization from a commercially available Ti-Nb metal multilayer. The oxide nanotube walls then consist of alternating ~4 nm TiO(2) and ~7 nm Nb(2)O(5) rings. Such "superlattice" nanotube layers exhibit a much higher structural cycling stability for reversible Li-intercalation processes than pure TiO(2) nanotubes.
authors.affiliation: School of Chemical Engineering and Technology, Harbin Institute of Technology, West DaZhi Street 92, Harbin, 150001, P. R. China. yangmin@hit.edu.cn
authors.forename: Min
authors.initials: M
authors.lastname: Yang
authors.forename: Guang
authors.initials: G
authors.lastname: Yang
authors.forename: Erdmann
authors.initials: E
authors.lastname: Spiecker
authors.forename: Kiyoung
authors.initials: K
authors.lastname: Lee
authors.forename: Patrik
authors.initials: P
authors.lastname: Schmuki