Electrochemical Determination of the Diffusion Coefficient of Hydrogen Through an LaNi_4.25Al_0.75 Electrode in Alkaline Aqueous Solution

Author(s)

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

Document Type

Article

Subject Area(s)

Chemical Engineering

Abstract

The constant potential and constant current discharge techniques were used to determine the hydrogen diffusion coefficients in an LaNi_4.25Al_0.75 electrode. The values obtained were 2.97 × 10^–11 and 3.30 × 10^–11 cm²/s, respectively. The advantages and disadvantages of these two techniques are discussed.

Publication Info

Journal of the Electrochemical Society, 1995, pages 2695-2698.

© 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.

http://www.electrochem.org/

DOI: 10.1149/1.2050076

Publisher's link: http://dx.doi.org/10.1149/1.2050076