Table of Contents
ISRN Nanotechnology
Volume 2013, Article ID 279398, 5 pages
Research Article

Electrochemical Response for Spherical and Rod Shaped WO3 Nanoparticles

Department of Ceramic Engineering, National Institute of Technology, Rourkela-769008, Orissa, India

Received 5 August 2013; Accepted 8 September 2013

Academic Editors: K. L. Bing, H. Maiwa, S. Marinel, and J. Sheen

Copyright © 2013 Sangeeta Adhikari and Debasish Sarkar. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A rapid and new technique describes synthesis technique of spherical and rod shaped tungsten trioxide (WO3) nanoparticles with similar band gap at visible wavelength. Acid catalyzed exothermic reaction and structure directing reagent follows the formation of two different morphologies and monoclinic WO3 phase. Rod shaped WO3 nanoparticle coated ITO glass electrode exhibits high current density at identical low voltage and scan rate due to its better adherence and coating uniformity in comparison with spherical nanoparticles. WO3-ITO electrode alters to blue tungsten bronze in color at low voltage, and further the color restores after removing the same applied voltage.