International Journal of Hydrogen Energy, Vol.35, No.3, 1049-1053, 2010
Can aqueous hydrogen peroxide be used as a stand-alone energy source?
A novel electrochemical scheme to convert a stand-alone supply of aqueous hydrogen peroxide into a fuel cell-ready stream of hydrogen gas plus aqueous hydrogen peroxide is described. The electrochemical cell, consisting of a solid base and solid acid electrocatalyst, together with a proton exchange membrane, comprise the system that converts aqueous hydrogen peroxide into separate gas streams of oxygen and hydrogen. Aqueous hydrogen peroxide is contained in the anode compartment only and exists in the region where oxygen gas is formed, whereas the cathode compartment is where hydrogen gas is generated and therefore exists in a reduced state. A near zero theoretical over-potential can be achieved by the choice of basicity and acidity of the electrode materials. The primary cost of the electrochemical cell is electrode construction and the aqueous hydrogen peroxide energy storage compound. Additional research effort is required to experimentally validate the concept and explore the full economic impact should initial studies, based on the design presented here, prove promising. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved
Keywords:Energy storage;Hydrogen peroxide;Electrochemical cell;Solid acid/base;Proton exchange membrane