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Electrochemical pressure impedance spectroscopy for investigation of mass transfer in polymer electrolyte membrane fuel cells

  • Mass transfer phenomena in membrane fuel cells are complex and diversified because of the presence of complex transport pathways including porous media of very different pore sizes and possible formation of liquid water. Electrochemical impedance spectroscopy, although allowing valuable information on ohmic phenomena, charge transfer and mass transfer phenomena, may nevertheless appearMass transfer phenomena in membrane fuel cells are complex and diversified because of the presence of complex transport pathways including porous media of very different pore sizes and possible formation of liquid water. Electrochemical impedance spectroscopy, although allowing valuable information on ohmic phenomena, charge transfer and mass transfer phenomena, may nevertheless appear insufficient below 1 Hz. Use of another variable, that is, back pressure, as an excitation variable for electrochemical pressure impedance spectroscopy is shown here a promising tool for investigations and diagnosis of fuel cells.show moreshow less

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Author:Anantrao Vijay Shirsath, Stéphanie Raël, Caroline Bonnet, Lutz Schiffer, Wolfgang G. BesslerORCiDGND, Francois Lapicque
Publisher:Elsevier Limited
Place of publication:Amsterdam
Year of Publication:2020
Date of first Publication:2020/05/11
Language:English
Parent Title (English):Current Opinion in Electrochemistry
Volume:20
ISSN:2451-9103
First Page:82
Last Page:87
Document Type:Article (reviewed)
Institutes:Hochschule Offenburg / Bibliografie
Acces Right:Zugriffsbeschränkt
Release Date:2020/06/23
Licence (German):License LogoEs gilt das UrhG
DOI:https://doi.org/10.1016/j.coelec.2020.04.017