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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Kočí, Jan | Prague |
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| Ali, M. A. |
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| Azevedo, Nuno Monteiro |
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Christensen, Jens Ole
in Cooperation with on an Cooperation-Score of 37%
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Publications (3/3 displayed)
- 2023Performance and sulfur tolerance of a short stack with solid oxide cells using infiltrated strontium titanate based anodescitations
- 2023Low Temperature Performance and Durability of Solid Oxide Fuel Cells with Titanate Based Fuel Electrodes Using Reformate Fuelcitations
- 2021Performance of Metal Supported SOFCs Operated in HydrocarbonFuels and at Low (>650 ˚C) Temperaturescitations
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article
Low Temperature Performance and Durability of Solid Oxide Fuel Cells with Titanate Based Fuel Electrodes Using Reformate Fuel
Abstract
The Ni/YSZ composite electrode is conventionally used for solid oxide cells, in electrolysis (SOEC) as well as fuel cell (SOFC) operation. For enhanced electrochemical performance at low temperature, mechanical durability, and impurity tolerance, alternative fuel electrode materials and cell configurations are required. In this paper we have studied a metal supported cell (MSC) with a titanate-based fuel electrode (La<sub>0.4</sub>Sr<sub>0.4</sub>Fe<sub>0.03</sub>Ni<sub>0.03</sub>Ti<sub>0.94</sub>O<sub>3</sub>, LSFNT) for its fuel cell performance using carbon containing fuel and compared to a state of the art (SoA) fuel electrode supported cell with a Ni/YSZ fuel electrode. In hydrogen fuel, the cells showed similar performance at intermediate and low temperatures (750 to 650°C), although the ASR is slightly higher for the MSC at all temperatures and steam/hydrogen ratios. Additionally, the MSC showed fair initial performance in reformate type fuel compositions (CO/steam and CO/steam/hydrogen), i.e. the fuel electrode possesses activity for the water gas shift reaction, which opens the possibility to use such cells with hydrocarbon fuels after a pre-reformer. Durability testing in pre-reformed fuel gas revealed that further fuel electrode tailoring is required to minimize cell degradation in carbon containing fuels.