High Temperature Co-Electrolysis of Steam and CO2in an SOC Stack: Performance and Durability
| Autor: | Jens Valdemar Thorvald Høgh, Sune Dalgaard Ebbesen, Peter Vang Hendriksen, Ming Chen, Janet Jonna Bentzen, Jens Ulrik Nielsen |
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| Rok vydání: | 2013 |
| Předmět: |
Electrolysis
Materials science Renewable Energy Sustainability and the Environment High-pressure electrolysis Oxide Energy Engineering and Power Technology law.invention chemistry.chemical_compound Electromethanogenesis Chemical engineering chemistry Stack (abstract data type) High-temperature electrolysis law Yttria-stabilized zirconia Polymer electrolyte membrane electrolysis |
| Zdroj: | Fuel Cells. 13:638-645 |
| ISSN: | 1615-6846 |
| DOI: | 10.1002/fuce.201200169 |
| Popis: | In this work, co-electrolysis of steam and carbon dioxide was studied in a Topsoe Fuel Cell (TOFC®) 10-cell stack, containing three different types of Ni/yttria stabilized zirconia (YSZ) electrode supported solid oxide electrolysis cells with a footprint of 12 × 12 cm. The stack was operated at 800 °C and –0.75 A cm–2 with 60% conversion for a period of 1,000 h. One type of the cells showed no long term degradation but actually activation during the entire electrolysis period, while the other two types degraded. The performance and durability of the different cell types is discussed with respect to cell material composition and microstructure. The results of this study show that long term electrolysis is feasible without notable degradation at 800 °C and a current density of –0.75 A cm–2. |
| Databáze: | OpenAIRE |
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