Fabrication of an Anode-Supported Gadolinium-Doped Ceria Solid Oxide Fuel Cell and Its Operation at 550°C
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-m 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.
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Document Type: Research Article
Affiliations: Centre for Ion Conducting Membranes, Imperial College, London SW7 2AZ, U.K.
Publication date: 2005-06-01