Abstract
A laboratory setup was designed and put into operation for the development of solid oxide fuel cells (SOFCs). The whole project consisted of the preparation of the component materials - anode, cathode, and electrolyte - and the buildup of a fuel leaking-free sample chamber with platinum leads and current collectors for measuring the electrochemical properties of single SOFCs. Several anode powders of ZrO2:Y2O3 + NiO or GDC + NiO, obtained by solid state mixture, modified liquid mixture and commercial one have been wet sprayed on electrolyte supported single SOFCs consisting of porous anode / (ZrO2:Y2O3) dense electrolyte / (La0.65Sr0.35MnO3 + ZrO2:Y2O3) porous cathode. These cells have been tested at 600 {degree sign}C, 700 {degree sign}C, 800 {degree sign}C and 900 {degree sign}C after in situ H2 anode reduction, using ethanol or H2 as fuels. The main results show that the wet spraying coating method resulted in single-cells with good reproducibility and reasonable performance.
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