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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Nielsen, Jimmy
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2016Performance Factors and Sulfur Tolerance of Metal Supported Solid Oxide Fuel Cells with Nanostructured Ni:GDC Infiltrated Anodescitations
- 2015Performance Factors and Sulfur Tolerance of Metal Supported Solid Oxide Fuel Cells with Nanostructured Ni:GDC Infiltrated Anodescitations
- 2015Investigation of Novel Electrocatalysts for Metal Supported Solid Oxide Fuel Cells - Ru:GDCcitations
- 2014Impedance of SOFC electrodes: A review and a comprehensive case study on the impedance of LSM:YSZ cathodescitations
- 2013Infiltrated SrTiO3:FeCr‐based Anodes for Metal‐Supported SOFCcitations
- 2012Characterization of a well performing and durable Ni:CGO-infiltrated anode for metal-supported SOFC
- 2012Detailed impedance characterization of a well performing and durable Ni:CGO infiltrated cermet anode for metal-supported solid oxide fuel cellscitations
- 2012Infiltrated SrTiO3:FeCr-based anodes for metalsupported SOFC
- 2012Durable and Robust Solid Oxide Fuel Cells
- 2012Break-down of Losses in High Performing Metal-Supported Solid Oxide Fuel Cells
- 2012Characterization of impregnated GDC nano structures and their functionality in LSM based cathodescitations
- 2011SOFC LSM:YSZ cathode degradation induced by moisture: An impedance spectroscopy studycitations
- 2011High performance metal-supported solid oxide fuel cells with Gd-doped ceria barrier layerscitations
- 2011Impedance of porous IT-SOFC LSCF:CGO composite cathodescitations
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article
SOFC LSM:YSZ cathode degradation induced by moisture: An impedance spectroscopy study
Abstract
The cause of the degradation effect of moisture during operation of LSM cathode based SOFCs has been investigated by means of a detailed impedance characterization on LSM:YSZ composite cathode based SOFCs. Further the role of YSZ as cathode composite material was studied by measurements on SOFCs with a LSM:CGO composite cathode on a CGO interdiffusion barrier layer. It was found that both types of cathodes showed similar electrochemical characteristics towards the presence of moisture during operation. Upon addition and removal of moisture in the fed air the impedance study showed a change in the high frequency cathode arc, which is associated with the charge transport/transfer at the LSM/YSZ interface. On prolonged operation with the presence of moisture an ongoing increase in the high frequency cathode arc resulted in a permanent loss of cathode/electrolyte contact and thus increase in the serial resistance and the high and low frequency cathode arcs. On the basis of these results and reports within literature a mechanism for the effect of moisture was proposed, which attribute to moisture the role of participating in an enhanced removal of manganese from the LSM/YSZ interface and thus eventually a decomposition of LSM.