Performance of a glucose AFC

Room temperature measurements performed in an alkaline fuel cell (AFC) using glucose as fuel at different concentrations are reported. The open circuit voltage, as a function of initial glucose concentration, polarization curves and power density, as function of current density, were measured. It was found that the reported electrical properties have maximum values at an initial glucose concentration of around 0.89 M. This behavior is attributed to second order reactions that compete with the electrochemical oxidation of the glucose.