Date of this Version
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 0.26 Ω cm2 was obtained at 973 K in humidified H2 using a Ag-paste conduction layer and a 12 µm thick functional layer made from 1 wt % Pd and 40 wt % ceria in yttria-stabilized zirconia. Replacing the Ag paste with a 100 µm layer of porous La0.3Sr0.7TiO3 (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.
Date Posted: 01 March 2007
This document has been peer reviewed.