A proposal that high solid oxide fuel cell (SOFC) anode performance can be achieved by using a very thin, catalytically active functional layer, with a noncatalytic conduction layer, has been tested. An anode impedance of was obtained at in humidified using a Ag-paste conduction layer and a thick functional layer made from Pd and ceria in yttria-stabilized zirconia. Replacing the Ag paste with a layer of porous (LST) had minimal effect on cell performance. The anode concept is flexible and should allow various materials to be used in the functional and the current-collector layers.
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Gross et al. (2007) studied this question.
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