Abstract
| Original language | English |
|---|---|
| Journal | Fuel Cells |
| Volume | 18 |
| Issue number | 5 |
| Pages (from-to) | 640-648 |
| ISSN | 1615-6846 |
| DOIs | |
| Publication status | Published - 2018 |
| Event | 6th European PEFC and Electrolyzer Forum - Lucerne, Switzerland Duration: 4 Jul 2017 → 7 Jul 2017 Conference number: 6 |
Conference
| Conference | 6th European PEFC and Electrolyzer Forum |
|---|---|
| Number | 6 |
| Country | Switzerland |
| City | Lucerne |
| Period | 04/07/2017 → 07/07/2017 |
Bibliographical note
Special issue. Paper presented at the 6th EUROPEAN PEFC & ELECTROLYZER Forum (EFCF2017), July 4–7, 2017 held in Lucerne, Switzerland.Keywords
- EIS
- EIS noise
- Electrochemical Impedance Spectroscopy
- Gas Bubbles
- Nafion 117
- PEMEC
- Polymer Electrolyte Membrane Electrolysis Cell
Cite this
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Noise Phenomena in Electrochemical Impedance Spectroscopy of Polymer Electrolyte Membrane Electrolysis Cells. / Elsøe, K.; Kraglund, M. R.; Grahl-Madsen, L.; Scherer, G. G.; Hjelm, J.; Jensen, S. H.; Jacobsen, T.; Mogensen, M. B.
In: Fuel Cells, Vol. 18, No. 5, 2018, p. 640-648.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Noise Phenomena in Electrochemical Impedance Spectroscopy of Polymer Electrolyte Membrane Electrolysis Cells
AU - Elsøe, K.
AU - Kraglund, M. R.
AU - Grahl-Madsen, L.
AU - Scherer, G. G.
AU - Hjelm, J.
AU - Jensen, S. H.
AU - Jacobsen, T.
AU - Mogensen, M. B.
N1 - Special issue. Paper presented at the 6th EUROPEAN PEFC & ELECTROLYZER Forum (EFCF2017), July 4–7, 2017 held in Lucerne, Switzerland.
PY - 2018
Y1 - 2018
N2 - In this study, the origin of noise in electrochemical impedance spectroscopy (EIS) spectra measured on a variety of polymer electrolyte membrane electrolysis cells (PEMECs) has been investigated. EIS was measured during operation at various current densities of seven different PEMECs divided in five different cell types including both acidic PEMECs and alkaline PEMECs. The noise pattern differed between various types of cells and between cells of the same cell type. Integration time had no influence on the EIS noise level, whereas the AC amplitude seems to influence the EIS noise level. Other electrical noise sources influencing the EIS measurements have been studied with oscilloscope. No noise was observed at DC. A hypothesis explaining the relation between bubble formation during electrolysis and EIS noise is proposed based on the experimental findings.
AB - In this study, the origin of noise in electrochemical impedance spectroscopy (EIS) spectra measured on a variety of polymer electrolyte membrane electrolysis cells (PEMECs) has been investigated. EIS was measured during operation at various current densities of seven different PEMECs divided in five different cell types including both acidic PEMECs and alkaline PEMECs. The noise pattern differed between various types of cells and between cells of the same cell type. Integration time had no influence on the EIS noise level, whereas the AC amplitude seems to influence the EIS noise level. Other electrical noise sources influencing the EIS measurements have been studied with oscilloscope. No noise was observed at DC. A hypothesis explaining the relation between bubble formation during electrolysis and EIS noise is proposed based on the experimental findings.
KW - EIS
KW - EIS noise
KW - Electrochemical Impedance Spectroscopy
KW - Gas Bubbles
KW - Nafion 117
KW - PEMEC
KW - Polymer Electrolyte Membrane Electrolysis Cell
U2 - 10.1002/fuce.201800005
DO - 10.1002/fuce.201800005
M3 - Journal article
VL - 18
SP - 640
EP - 648
JO - Fuel Cells
JF - Fuel Cells
SN - 1615-6846
IS - 5
ER -