摘要
采用固相法制备电解质材料La_2Mo_(2-x)Al_xO_(9-δ)(x=0、0.2、0.4和0.6),通过SEM、XRD、电化学阻抗谱(EIS)等方法对样品进行分析。制备的电解质样品均已抑制了相变;在950℃烧结,能得到孔隙率低于5%的陶瓷烧结体;随着铝掺杂量x的增加,氧离子电导率σ呈现逐渐变小的趋势;当温度为800℃、x=0.2时,σ为22.47 mS/cm,活化能Ea为1.053 eV。
La2Mo2-xAlxO9-δ（ x = 0,0. 2,0.4 and 0. 6） was synthesized by solid-state method. The samples were analyzed by SEM, XRD and electrochemical impedance spectroscopy （EIS）. The phase transformation of electrolyte samples was inhibited. The ceramic of porosity lower than 5% was gotten after sintering at 950 ℃ ; with the increasing of aluminum doping amount x, oxygen ion conductivity σ gradually decreased ; when the temperature was 800 ℃ ,x = 0. 2, the σ was 22. 47 mS/cm, the activation energy Ea was 1. 053 eV.
出处
《电池》
CAS
CSCD
北大核心
2017年第5期257-260,共4页
Battery Bimonthly
基金
国家自然科学基金(51102073
21376059)
安徽省自然科学研究项目(1508085QB31
1708085ME112)
安徽省高等学校自然科学研究项目(KJ2015B1105906
KJ2015A275)
安徽省质量工程大学生创客项目(2015ckjh081
2015ckjh055
2016ckjh166)
安徽省大学生创新创业训练计划项目(201611059095
201611059108
201611059147
201611059154)
合肥学院重大研究项目(16ZR06ZDA)
