质子传导固体氧化物燃料电池具有广阔的应用前景,本文探索以BaCeO3为主体均相复合BaZrO3,采用ZnO为烧结助剂,制备了Y和Yb复合掺杂的BaZrO3-BaCeO3即BaCe0.5 Zr0.3 Y0.2-xYbxO3-δ(x=0、0.08、0.16)质子导体,重点研究了Y和Yb复合掺杂对质子导体材料烧结性、微观结构和电导率的影响.实验结果表明,x=0时,即BCZY-Z试样具有较好的性能,1350℃烧结6h试样相对密度达到了97.1％,600℃电导率为6.3×10-3 S/cm,700℃晶界电阻只有18 Ω.
参考文献
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