Transfer function analysis of hydrogen permeation through a metallic membrane in a Devanathan cell. I. Theory

Autor:	Claude Gabrielli, Georges Maurin, Bernard Tribollet, L. Mirkova, Hubert Perrot
Rok vydání:	2006
Předmět:	Hydrogen Chemistry General Chemical Engineering Transconductance Analytical chemistry Thermodynamics chemistry.chemical_element Input impedance Permeation Transfer function Analytical Chemistry Electrochemical cell Electrochemistry Diffusion (business) Electrical impedance
Zdroj:	Journal of Electroanalytical Chemistry. 590:1-14
ISSN:	1572-6657
DOI:	10.1016/j.jelechem.2006.01.029
Popis:	Various transfer functions were calculated for hydrogen permeation through a metallic membrane in a Devanathan cell. Surface processes such as hydrogen adsorption and evolution were taken into account in addition to the hydrogen penetration process and its diffusion through the bulk metal. The main transfer functions are the input impedance ΔV1/ΔI1 and the permeation transfer function ΔI2/ΔI1 between the output current and the input current from which the transconductance transfer function ΔI2/ΔV1 can be calculated. These quantities were obtained for potentiostatic controls of the input and/or the output sides. The effect of the changes of some characteristic kinetic parameters on these transfer functions were analyzed and their simplified expressions were derived for a few limiting cases. This gives a tool to interpret experimental data in a large set of conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2c4610adc39492cc9a7c7400846c70de https://doi.org/10.1016/j.jelechem.2006.01.029 Zobrazit plný text záznamu Full Text from ScienceDirect