本研究利用有機化學合成法製備均質之BaCe0.9Zr0.1O3，並以不同的三價陽離子(Yb, Y, Dy, Gd, Eu)取代晶格中Ce位置，觀察不同陽離子對導電率之影響。其中以BaCe0.7Zr0.1Dy0.2O3-δ具有較佳之穩定性及導電性，深入研究其缺陷化學與導電率的關係，發現電洞導電特性和氧氣分壓成1/4次方關係，推導出離子及電洞各別之導電率及活化能，並算出不同氧分壓下之遷移數(Transference Number)，可知高氧分壓下，導電度由電洞貢獻；低氧分壓下，由離子所貢獻。並更進一步探討添加不同鋯含量對材料穩定性的影響，其中當摻雜鋯含量大於0.3 mol時，可於二氧化碳氣氛下穩定存在，且BaCe0.5Zr0.3Dy0.2O3-δ之導電率亦符合所推導出之缺陷化學。

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