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Open Access Nano Express

Facile Hydrogen Evolution Reaction on WO3Nanorods

Janarthanan Rajeswari, PilliSatyananda Kishore, Balasubramanian Viswanathan* and ThirukkallamKanthadai Varadarajan

Author Affiliations

Department of Chemistry, National Centre for Catalysis Research, Indian Institute of Technology Madras, Chennai, 600 036, India

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Nanoscale Research Letters 2007, 2:496-503  doi:10.1007/s11671-007-9088-y

Published: 1 September 2007

Abstract

Tungsten trioxide nanorods have been generated by the thermal decomposition (450 °C) of tetrabutylammonium decatungstate. The synthesized tungsten trioxide (WO3) nanorods have been characterized by XRD, Raman, SEM, TEM, HRTEM and cyclic voltammetry. High resolution transmission electron microscopy and X-ray diffraction analysis showed that the synthesized WO3nanorods are crystalline in nature with monoclinic structure. The electrochemical experiments showed that they constitute a better electrocatalytic system for hydrogen evolution reaction in acid medium compared to their bulk counterpart.

Keywords:
Tungsten trioxides; Thermal decomposition; Nanorods; Hydrogen evolution reaction; Electrocatalyst