Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Top view SEM micrograph of titania nanotube arrays fromed by electrochemical anodization, with the inset showing the base of the nanotube arrays; (b) side vide of the titania nanotube arrays; (c) TaON nanotubes formed by nitridization of Ta2O5 nanotubes (Reprinted with permission from [42], Copyright by The Royal Society of Chemistry); (d–e) Fe2O3 nanotubes formed by (Reprinted with permission from [40], Copyright by the IOP Publishing).
