Thin layers of yttria-stabilized zirconia (YSZ) at 11 mol% Y2O3 doping
level was deposited on a sintered disk of Y2O3 doped ceria electrolyt
e by spin-coating from an alkoxide solution. Dense sintered films were
obtained by heat-treatment at 600 degrees C. Open circuit voltage (OC
V) was measured across the disk in a fuel cell mode with hydrogen fuel
on the ceria side and pure oxygen on the YSZ side. Marked improvement
of OCV was obtained on the two-layer electrolyte structure with the s
ol-gel YSZ film.