Hydrogen Peroxide as an Oxidant for Microfluidic Fuel Cells

摘要

A microfluidic fuel cell is a device that confines all fundamental components of a fuel cell to a single microstructured manifold. Researchers at the University of Victoria in Canada recently developed a membraneless microfluidic fuel cell using hydrogen peroxide as the oxidant. The cell employed a design with a grooved channel geometry that utilized gas evolution and unsteady two-phase flow characteristics to enhance local transport rates and time-averaged current density. This design also restricted oxygen bubble growth and expulsion to the channel section directly above the cathode in order to enhance the rate of oxygen reduction and prevent detrimental fuel and oxidant crossover effects.