Mechanical Properties and Electrochemical Characterisation of Extruded Doped cerium oxide for use as an SOFC Electrolyte
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SCOPUS
- Title
- Mechanical Properties and Electrochemical Characterisation of Extruded Doped cerium oxide for use as an SOFC Electrolyte
- Authors
- Oliver Bellon; Sammes, NM; John Staniforth
- Date Issued
- 1998-09-01
- Publisher
- ELSEVIER
- Abstract
- Doped cerium oxide is a promising electrolyte for use in a medium-temperature solid oxide fuel cell (SOFC), due to its high ionic conductivity at low temperatures. A colloidal processing route has been undertaken to prepare slurries from very fine doped-cerium oxide. The dried slurry is extruded into rods and tubes and the room temperature modulus of rupture is then measured. It is shown that the material could attain a modulus in excess of 220 MPa for (CeO2)(0.8)(GdO1.5)(0.2), which is considerably greater than values obtained using traditional routes. A preliminary investigation is made of the electrochemical properties of single cells fabricated from the extruded doped-ceria tubes. At 600 degrees C, a maximum power output of approximately 38 mW cm(-2) is realised. (C) 1998 Elsevier Science S.A. All rights reserved.
- Keywords
- ceria; extrusion; electrolyte; mechanical strength; solid oxide fuel cell
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15357
- DOI
- 10.1016/S0378-7753(98)00104-9
- ISSN
- 0378-7753
- Article Type
- Article
- Citation
- Journal of Power Sources, vol. 75, no. 1, page. 116 - 121, 1998-09-01
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- There are no files associated with this item.
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