Journal article
A method to separate process contributions in impedance spectra by variation of test conditions
Electrochemistry, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Electroceramics, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark4
Physical Chemistry, Department of Chemistry, Technical University of Denmark5
Department of Chemistry, Technical University of Denmark6
Many processes contribute to the overall impedance of an electrochemical cell, and these may be difficult to separate in the impedance spectrum. Here, we present an investigation of a solid oxide fuel cell based on differences in impedance spectra due to a change of operating parameters and present the result as the derivative of the impedance with respect to ln(f).
The method is used to separate the anode and cathode contributions and to identify various types of processes.
| Language: | English |
|---|---|
| Publisher: | The Electrochemical Society |
| Year: | 2007 |
| Pages: | B1325 |
| ISSN: | 19457111 and 00134651 |
| Types: | Journal article |
| DOI: | 10.1149/1.2790791 |
| ORCIDs: | Hauch, Anne , Hendriksen, Peter Vang , Mogensen, Mogens Bjerg and Bonanos, Nikolaos |
