In-plane gas permeability and thought-plane resistivity of the gas diffusion layer influenced by homogenization technique and its effect on the proton exchange membrane fuel cell cathode performance

The Obtained results in H2/air PEMFC under various cathode relative humidity (RHC), 33-100%, revealed that the performance of the MEA made by MPL-C is 20% higher than others; 504 mWcm−2 versus 385 mWcm−2at 33% RHC. More analysis by electrochemical impedance spectroscopy demonstrated that MPL ink preparation by bath ultrasonic techniques resulted a lower ohmic and charge transfer resistance in PEMFC at least in small scale MEA.