以8YSZ粉体和PMMA造孔剂为原料，分别采用水系流延法制备多孔YSZ流延片与有机流延法制备YSZ薄膜，经叠压共烧获得多孔YSZ/YSZ薄膜复合基体。研究了PMMA含量、YSZ粒径对复合基体的影响。结果表明：采用Tosoh YSZ粉体制备YSZ薄膜，球磨后的九江YSZ粉体制备多孔YSZ流延片，多孔YSZz中PMMA含量为20wt.%,YSZ含量为80wt.%，在1530℃下共烧能获得较为平整且YSZ薄膜致密的多孔YSZ/YSZ薄膜复合基体，多孔层的孔隙率可达45vol.%；采用九江YSZ粉体分别制备YSZ薄膜和多孔YSZ，多孔YSZ中PMMA含量为20wt.%，YSZ含量为80wt.%，在1600℃下共烧6h可获得较为平整、孔隙较高、结构均匀且YSZ薄膜致密的复合基体。采用饱和硝酸镍溶液作为浸渍液对在1530℃下共烧获得的复合基体的多孔YSZ层进行浸渍，经干燥、焙烧制备了浸渍阳极SOFC单电池。在H2/空气气氛中，750℃时测得单电池最大功率密度为0.58 W/cm2，其对应的欧姆阻抗为0.42Ω·cm2，极化阻抗为0.6Ω·cm2。%Using 8YSZ powder and PMMA pore former as the raw materials, porous YSZ iflm and YSZ electrolyte iflm were prepared respectively by aqueous tape casting and organic tape casting. The porous YSZ-YSZ iflm composite was prepared via the stacked co-ifring of the porous YSZ iflm and YSZ electrolyte iflm. The inlfuences of the amount of the PMMA and the particle size of the YSZ on the co-ifring characteristic of the composite were investigated. The results show, by co-ifring the composite at 1530℃ for 2 h, lfat and high density YSZ iflm composite matrix was obtained. By using the Tosoh YSZ powder for preparing YSZ electrolyte iflm and ball milling Jiujiang YSZ for preparing porous YSZ iflm, the porosity of the porous YSZ layer was 45vol. %. The content of PMMA in porous YSZ iflm was 80wt. % and the content of YSZ was 20wt. %. Jiujiang YSZ powders were used to prepare YSZ electrolyte iflm and porous YSZ iflm, which were then co-ifred at 1600℃ for 6h to produce YSZ iflm composite with smooth, uniform structure, high porosity and high density. The content of PMMA in porous YSZ iflm was 80wt. % and the content of YSZ was 20wt. %. Using 3.1mol/L aqueous solution of nickel nitrate as the impregnating solution to impregnate the composite matrix of porous YSZ layer co-ifred at 1530℃. The SOFC single cell with impregnated anode was prepared by drying and calcination. The maximum power density of the as-prepared single cell in hydrogen at 750℃ was 0.58 W/cm2. Its corresponding ohm resistance was 0.42 Ω·cm2 and its polarization resistance was 0.6 Ω·cm2.
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