Fabrication and Properties of Ce0.8Gd0.2O1.9 Electrolyte Based Tubular Solid Oxide Fuel Cells
SCIE
SCOPUS
- Title
- Fabrication and Properties of Ce0.8Gd0.2O1.9 Electrolyte Based Tubular Solid Oxide Fuel Cells
- Authors
- Hatchwell, C; Sammes, NM; Brown, IWM
- Date Issued
- 1999-11
- Publisher
- Elsevier
- Abstract
- A general procedure for the extrusion of Ce0.8Gd0.2O1.9 tubular electrolytes is detailed. Using a commercial water-based binder system, Ce0.8Gd0.2O1.9 was extruded, then fired at 1600 degrees C to form high-density electrolyte tubes (98% relative to theoretical). Heat-treatment of the Ce0.8Gd0.2O1.9 powder at 900 degrees C for 4 h yielded tubes that were highly dense with a smooth surface finish, while non heat-treated powders resulted in an extrusion that was less dense with poor surface finish. Electrodes were applied and the tubular SOFC was electrically tested. A good open circuit voltage of 0.911 V was achieved for the cell, however a poor operating current density of 0.0123 A/cm(2) at 0.7 V was obtained. The results demonstrate the potential of fabricating and operating tubular SOFCs. (C) 1999 Elsevier Science B.V. All rights reserved.
- Keywords
- cerium oxide; ceria; extrusion; solid oxide fuel cell; SOFC
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15292
- DOI
- 10.1016/S0167-2738(99)00232-5
- ISSN
- 0167-2738
- Article Type
- Article
- Citation
- SOLID STATE IONICS, vol. 126, no. 3-4, page. 201 - 208, 1999-11
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- There are no files associated with this item.
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