The H permeability of Pd cathodes was determined by measuring the pressure increase in a closed diffusion system. At 80C, the permeability was equal to 4.5 x 10-3cm/s. Pressures of up to 170atm had no pronounced effect upon the permeability.

F.Lange, E.Kahrig, D.Kirstein: Chem. Techn., 1966, 18[11], 672-4