Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 19-27 |
| Seitenumfang | 9 |
| Fachzeitschrift | Journal of Electroanalytical Chemistry |
| Jahrgang | 2012 |
| Ausgabenummer | 37 |
| Publikationsstatus | Veröffentlicht - 15 Mai 2009 |
| Extern publiziert | Ja |
Abstract
Membrane dehydration, fuel cell flooding and anode catalyst poisoning by carbon monoxide are diagnosed in a single polymer electrolyte fuel cell (PEMFC) using nonlinear frequency response analysis (NFRA). A sinusoidal perturbation of high amplitude is applied to the fuel cell current and the resulting voltage is analysed using the concept of higher order frequency response functions. It is shown that the linear part of the system response corresponds to classical Electrochemical Impedance Spectra (EIS), which are not sufficient to clearly distinguish between different fuel cell failures. Therefore, the nonlinear behaviour is additionally taken into account in the form of the second order frequency response function. With this, it is possible to distinguish unambiguously between the three analysed PEM fuel cell failures.
Schlagwörter
- Dehydration, Electrochemical impedance spectroscopy, Nonlinear frequency response analysis, Polymer electrolyte membrane fuel cell, Proton transport
ASJC Scopus Sachgebiete
- Chemie (insg.)
- Analytische Chemie
- Chemische Verfahrenstechnik (insg.)
- Allgemeine chemische Verfahrenstechnik
- Chemie (insg.)
- Elektrochemie
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in: Journal of Electroanalytical Chemistry, Jahrgang 2012, Nr. 37, 15.05.2009, S. 19-27.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Nonlinear frequency response analysis of PEM fuel cells for diagnosis of dehydration, flooding and CO-poisoning
AU - Kadyk, Thomas
AU - Hanke-Rauschenbach, Richard
AU - Sundmacher, Kai
N1 - Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2009/5/15
Y1 - 2009/5/15
N2 - Membrane dehydration, fuel cell flooding and anode catalyst poisoning by carbon monoxide are diagnosed in a single polymer electrolyte fuel cell (PEMFC) using nonlinear frequency response analysis (NFRA). A sinusoidal perturbation of high amplitude is applied to the fuel cell current and the resulting voltage is analysed using the concept of higher order frequency response functions. It is shown that the linear part of the system response corresponds to classical Electrochemical Impedance Spectra (EIS), which are not sufficient to clearly distinguish between different fuel cell failures. Therefore, the nonlinear behaviour is additionally taken into account in the form of the second order frequency response function. With this, it is possible to distinguish unambiguously between the three analysed PEM fuel cell failures.
AB - Membrane dehydration, fuel cell flooding and anode catalyst poisoning by carbon monoxide are diagnosed in a single polymer electrolyte fuel cell (PEMFC) using nonlinear frequency response analysis (NFRA). A sinusoidal perturbation of high amplitude is applied to the fuel cell current and the resulting voltage is analysed using the concept of higher order frequency response functions. It is shown that the linear part of the system response corresponds to classical Electrochemical Impedance Spectra (EIS), which are not sufficient to clearly distinguish between different fuel cell failures. Therefore, the nonlinear behaviour is additionally taken into account in the form of the second order frequency response function. With this, it is possible to distinguish unambiguously between the three analysed PEM fuel cell failures.
KW - Catalyst poisoning
KW - Flooding
KW - Higher order frequency response function
KW - Membrane drying
KW - Nonlinear frequency response analysis
KW - Polymer electrolyte membrane fuel cell
KW - Dehydration
KW - Electrochemical impedance spectroscopy
KW - Nonlinear frequency response analysis
KW - Polymer electrolyte membrane fuel cell
KW - Proton transport
UR - http://www.scopus.com/inward/record.url?scp=64549143747&partnerID=8YFLogxK
U2 - 10.1016/j.jelechem.2009.02.001
DO - 10.1016/j.jelechem.2009.02.001
M3 - Article
AN - SCOPUS:64549143747
VL - 2012
SP - 19
EP - 27
JO - Journal of Electroanalytical Chemistry
JF - Journal of Electroanalytical Chemistry
SN - 1572-6657
IS - 37
ER -