Effect of structure of the electrical performance of gas diffusion electrodes for metal air batteries

摘要: The effects of different commercial carbon powders (Vulcan XC72R, Black Pearls 3700 and Shawiningan Black), on the performance double-layered gas diffusion electrodes are reported. active mass was catalysed with cobalt tetramethoxyphenylporphyrin. Various techniques such as impregnation, permeation, porosimetry, SEM observations impedance spectroscopy were used to characterise structure electrodes. electrochemical behaviour determined by means polarisation curves in alkaline electrolyte. catalytic activity physical characteristics material strongly affect life results significantly contribute proper selection materials optimisation electrode manufacturing technology. Besides estimation some structural parameters enables correct simulation behaviour.