PORE FORMATION BY IN SITU ETCHING OF NANOROD PEM FUEL CELL ELECTRODES

This technology relates to a process for creating electrodes in which high-surface area nanostructures are fabricated in situ by electrochemically etching a sacrificial scaffold material. Removing a material after it has been built into the cell opens up pores within the electrode whose size and density can be controlled, resulting in higher efficiency and Pt utilization.