Hydrogen-Atom Direct-Entry Mechanism into Metal Membranes

G. Zheng, University of South Carolina - Columbia
Branko N. Popov, University of South Carolina - Columbia
Ralph E. White, University of South Carolina - Columbia

© The Electrochemical Society, Inc. 1995. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in the Journal of the Electrochemical Society.


Publisher's link: http://dx.doi.org/10.1149/1.2043855

DOI: 10.1149/1.2043855


The hydrogen-atom direct-entry mechanism is used to explain why the steady-state hydrogen permeation current density through a metal membrane is directly proportional to the cathodic current density, ic, and is independent of the membrane thickness when ic is small.