采用溶胶-凝胶法制备了La掺杂BaTiO3(LBT)材料,通过对其进行X射线衍射、扫描电子显微镜及电导率的研究来讨论La掺杂含量对BaTiO3材料的电性能的影响.结果表明:900℃煅烧LaxBa1-xTiO3(x=0～0.4)粉末能获得单一的钙钛矿结构;La掺杂能明显提高BaTiO3的电导率,当x=0.2时,La02Ba08TiO3(LBT20)材料与Gd掺杂氧化铈Ce0.8Gd0.2O1.9电解质材料具有良好的化学相容性;且LBT20的电导率最大,在800℃还原条件下的电导率大约为0.15 S/cm,是在相同条件下测得的BaTiO3电导率的4倍多,表明LBT20可以作为一种潜在的直接在碳氢燃料下工作的中温固体氧化物燃料电池的阳极材料,但是它的电导率还需进一步提高.
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