以Ce(NO3)3·6H2O和Gd2O3为前驱体,六亚甲基四胺为沉淀剂,通过均相沉淀反应直接合成能长时间稳定悬浮的氧化钆掺杂纳米氧化铈(Ce0.8Gd0.2O1.9,GDC)母液.对合成的前驱粉体进行了XRD、BET、动态光散射等研究,XRD结果表明粉体具有氧化铈的立方萤石结构特征峰,BET结果表明粉体比表面积为68.3m2/g,当量粒径为约12nm,非等温烧结实验结果表明粉体具有良好的烧结活性.用浸渍-提拉法(dip-coating)在多孔NiO-YSZ阳极基底上制备GDC电解质薄膜,并利用场发射扫描电镜对薄膜的烧结行为进行了研究,薄膜在1300℃等温烧结后实现完全致密化.通过薄膜制备过程中制浆与成膜两个步骤的有机结合,探讨一条制备高性能GDC电解质薄膜的新途径.
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