The migration of H was investigated electrochemically by using a pulse method. The diffusivity at 293K was equal to 2 x 10-7cm2/s. The activation energy which governed diffusion at temperatures ranging from 20 to 80C was 7.4kcal/mol.

E.Brauer, R.Doerr, H.Züchner: Zeitschrift fur Physikalische Chemie, 1976, 100[1-2], 109-12