Abstract
Two ScYSZ electrolytes with different impurity levels were evaluated by electrochemical impedance spectroscopy using a nickel point electrode setup. The nickel electrodes showed lower electrode polarization resistances on the pure electrolyte than on the impure electrolyte. Time-of-flight secondary ion mass spectrometry was used to evaluate the electrode/electrolyte interfaces. Stronger signals from silica impurities in the electrode/electrolyte interface, relative to the electrolyte/gas interface, were found on the impure electrolyte than on the pure electrolyte. (C) 2007 Elsevier B.V. All rights reserved.
Original language | English |
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Journal | Solid State Ionics |
Volume | 179 |
Issue number | 27-32 |
Pages (from-to) | 1436-1441 |
ISSN | 0167-2738 |
DOIs | |
Publication status | Published - 30 Sept 2008 |
Event | 16th International conference on solid state ionics (SSI-16) - Shanghai, China Duration: 1 Jul 2007 → 6 Jul 2007 |
Conference
Conference | 16th International conference on solid state ionics (SSI-16) |
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Country/Territory | China |
City | Shanghai |
Period | 01/07/2007 → 06/07/2007 |
Keywords
- SOFC
- Anode
- Impurities
- ScYSZ
- ToF-SIMS