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.…
| Author: | Anantrao Vijay Shirsath, Stéphanie Raël, Caroline Bonnet, Lutz Schiffer, Wolfgang G. BesslerORCiDGND, Francois Lapicque |
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| 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: | Bibliografie |
| Acces Right: | Zugriffsbeschränkt |
| Release Date: | 2020/06/23 |
| Licence (German): |  Es gilt das UrhG |
| DOI: | https://doi.org/10.1016/j.coelec.2020.04.017 |