Fabrication of an Anode-Supported Gadolinium-Doped Ceria Solid Oxide Fuel Cell and Its Operation at 550°C

• Published in: Journal of the American Ceramic Society Vol. 88; no. 6; pp. 1394 - 1396
• Main Authors: Oishi, N., Atkinson, A., Brandon, N. P., Kilner, J. A., Steele, B. C. H.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Science Inc 01-06-2005; Blackwell; Wiley Subscription Services, Inc
• Subjects: Applied sciences; Building materials. Ceramics. Glasses; Ceramic industries; Ceramic sintering; Chemical industry and chemicals; Density; Electric currents; Electrotechnical and electronic ceramics; Energy; Energy. Thermal use of fuels; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc; Exact sciences and technology; Fuel cells; Solid oxide fuel cells; Technical ceramics; Scanning electron microscopy; Electrical properties; Solid electrolyte; Isostatic pressing; Experimental study; Solid oxide fuel cell; Oxide ceramics; Cerium Gadolinium Oxides Mixed; Sintering; Infiltration; Manufacturing; Bilayers; Electroceramics; Electrophoretic deposition
• ISSN: 0002-7820; 1551-2916
• DOI: 10.1111/j.1551-2916.2005.00251.x

Ce0.9Gd0.1O2−x (CGO) layers were deposited onto nonconductive porous NiO–CGO supports by electrophoretic infiltration, and then compacted by isostatic pressing to achieve a high packing density of the deposited layer. The bilayers were sintered to give dense CGO layers at 1290°C in air. A fuel cell comprising an La0.6Sr0.4Co0.2Fe0.8O3−x cathode, a 10‐μm CGO electrolyte, and a Ni–CGO anode was tested at 550°C with humidified 10% H2 and air. The cell showed an open circuit voltage of 0.86 V and delivered a steady current of about 470 mA/cm2 at a terminal voltage of 0.24 V.