Transfer function analysis of hydrogen permeation through a metallic membrane in a Devanathan cell. II. Experimental investigation on iron membrane. - Sorbonne Université Access content directly
Journal Articles Journal of Electroanalytical Chemistry Year : 2006

Transfer function analysis of hydrogen permeation through a metallic membrane in a Devanathan cell. II. Experimental investigation on iron membrane.

Abstract

The input impedance Z1(ω) = ΔV1/ΔI1 and the permeation transfer function (PTF) H(ω) = ΔI2/ΔI1 were simultaneously measured during hydrogen permeation through an iron membrane in a conventional electrochemical Devanathan double cell. Various experimental parameters, such as the thickness of the membrane or the polarization potential applied at the input side, were investigated, and their influence were discussed in the light of the model derived in the first part of this paper. In most cases an alkaline electrolyte was used in the input cell. The effect of a thin palladium layer deposited on the output side was also investigated. In acidic medium it was shown that the spontaneous corrosion at rest potential is sufficient to feed hydrogen permeation. At last, thiourea which is known to be a promoter of hydrogen penetration into iron materials, was added to the input solution. The effect of this additive on the evolution/permeation process was investigated by impedance/PTF analysis.

Dates and versions

hal-04165936 , version 1 (19-07-2023)

Identifiers

Cite

Claude Gabrielli, Georges Maurin, L. Mirkova, Hubert Perrot. Transfer function analysis of hydrogen permeation through a metallic membrane in a Devanathan cell. II. Experimental investigation on iron membrane.. Journal of Electroanalytical Chemistry, 2006, 590 (1), pp.15-25. ⟨10.1016/j.jelechem.2006.01.030⟩. ⟨hal-04165936⟩
2 View
0 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More