Diffusion of Hydrogen through Palladium

Abstract

Diffusion rates F (cm3 STP/cm2 min) of hydrogen from the upstream pressure P (atm) into vacuum through a palladium sheet of thickness L (microns) are represented by logF=3.70+0.68 logP−623/T−logL,except for very thin membranes. Explanations are suggested for the wide discordance of earlier results in the study of the diffusion of hydrogen through palladium.