Electrochemical Hydrogen Storage of Multiwalled Carbon Nanotubes

Abstract

The electrochemical properties of a multiwalled carbon nanotube electrode were investigated. A high discharge capacity of of MWNTs is obtained. The electrode was found to have high rate capability and long charge‐discharge cycle life. The electrochemical mechanism of hydrogen adsorption and hydrogen oxidation (electrochemical hydrogen desorption) of the electrode at the site was studied using cyclic voltammetry. Electrochemical impedance spectra showed that the electrode has high electrochemical activity due to its large reaction area. ©2000 The Electrochemical Society