Preparation of Cu-CeO2-YSZ anode by tape casting and impregnation for solid oxide fuel cell

Cu-CeO2-YSZ anode was prepared by tape casting and impregnating. With the starch as pore-forming agent, the technology of making porous YSZ was determined including pore-forming agent content and proportions of tape casting slurry. Porous-YSZ/density-YSZ compound substrate with porous-YSZ support was obtained by compound tape casting. Then, Pt as the cathode, the effects of porous-YSZ porosity and impregnation condition on anode performance was discussed through the charge characteristics of fuel cells. under the H-2 condition. The porosity of porous-YSZ could achieve to 70% after sintering for 6 h at 1500 degrees C, when pore former volume fractions was 65wt% in materials. Under the vacuum condition, 20wt%Cu-10wt%Cu-CeO2-YSZ anodes was prepared by orderly impregnating Ce(NO3)(3) and Cu(NO3)(2). The maximal powder density of the cell with this anode was up to 113 mW/cm(2) at 800 degrees C.