Spiral growth of one dimensional titania nanostructures using anodic oxidation

A S Karakoti; R Filmalter; D Bera; Satyanarayana V N T Kuchibhatla; A Vincent; S Seal

doi:10.1166/jnn.2006.364

Spiral growth of one dimensional titania nanostructures using anodic oxidation

J Nanosci Nanotechnol. 2006 Jul;6(7):2084-9. doi: 10.1166/jnn.2006.364.

Authors

A S Karakoti¹, R Filmalter, D Bera, Satyanarayana V N T Kuchibhatla, A Vincent, S Seal

Affiliation

¹ Surface Engineering and Nanotechnology Facility, Advanced Materials Processing and Analysis Center, Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, USA.

PMID: 17025130
DOI: 10.1166/jnn.2006.364

Abstract

One dimensional spiral titania nanostructures were obtained by anodization of pure titanium from fluoride containing solutions of phosphoric acid. The formation of nanotubes was found to be dependant on current density. Field Emission Scanning Electron Microscopy (FESEM) shows the diameter of tubes around 70-100 nm which is consistent with the High Resolution Transmission Electron Micrographs (HRTEM) and Atomic Force Microscopy (AFM) images. HRTEM showed the one dimensional growth as spiral in nature which was also supported by AFM images. This anisotropic growth is compared with the possible growth mechanisms.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Crystallization / methods*
Electrodes
Electroplating / methods*
Materials Testing
Molecular Conformation
Nanostructures / chemistry*
Nanostructures / ultrastructure*
Nanotechnology / methods*
Oxidation-Reduction
Particle Size
Surface Properties
Titanium / chemistry*

Substances

titanium dioxide
Titanium