Research trends: Current distribution along single PEMFC flow channel

This novel method offers high spatial and time resolution, non-intrusive and dynamic current measurements in real time along a single flow channel in a PEM fuel cell. At low reactant flow rate (high utilization), there was depletion of reactant along the channel, and beyond a certain position in the channel, the rate of reaction became small, even though not all of the reactant had been utilized. This is an abstract of an article originally published in Electrochemistry Communications 3(11)628-632 (November 2001).