摘要
采用机械混合和凝胶包覆法制备10%(wt,质量分数,下同)BaZr_(0.9)Y_(0.1)O_(2.95)-90%BaCe_(0.86)Y_(0.1)Zn_(0.04)O_(2.91)(BZY-BCYZn)复相电解质,研究这两种制备方法对BZY-BCYZn复相电解质的结构和导电性能的影响。结果表明:凝胶包覆法制备的纳米BZY-BCYZn颗粒的平均晶粒尺寸为50nm,在1350℃烧结5h获得致密复相电解质材料(致密度达到96%),在600℃湿润Ar条件下的电导率为7.3mS/cm,比机械混合法制备的BZY-BCYZn复相电解质具有更加优异的烧结性能和导电性能。
10wt% BaZr0.9Y0.1O2.95-90wt%BaCe0.86Y0.1Zn0.04O2.91（BZY-BCYZn）composite electrolyte was synthesized by the mechanical mixing and polymerization gel coating methods,respectively.The effects of preparation methods on the microstructure and electrical properties of electrolyte were investigated.The results showed that the average grain size of nanopowders synthesized by the polymerization gel coating method was approximately 50 nm,and the dense electrolytes were obtained by sintering at 1350℃for 5h.The total conductivity reached 7.3mS/cm at 600℃ under wet Ar atmosphere,which exhibited the superior sintering activity and conductivity comparing with the mechanical mixing method.
出处
《化工新型材料》
CAS
CSCD
北大核心
2016年第4期57-59,共3页
New Chemical Materials
基金
国家自然科学基金(51102216)
山西省自然科学青年科技基金(2012021021-1)
关键词
质子导体
复相电解质
机械混合
凝胶包覆
proton conductor
composite electrolyte
mechanical mixing
gel coating
