摘要
采用溶胶-凝胶法合成高纯(SiO2<50 mg/kg)Zr0.84Y0.16O1.92+x MoO3(0.00≤x≤0.07)固溶体,研究MoO3的掺杂量对Zr0.84Y0.16 O1.92体系结构和电性能的影响。通过X射线衍射(XRD)和场发射扫描电子显微镜(FE-SEM)对材料进行表征,交流阻抗谱(AC)测试材料的电性能。结果表明,掺入MoO3后,体系仍保持立方莹石型结构;MoO3掺杂于Zr0.84Y0.16O1.92固体电解质的最佳掺量为0.05%;MoO3具有降低体系烧结温度、促进晶粒生长和提高体系致密度的作用,掺入MoO3的Zr0.84Y0.16O1.92体系晶界电导率和总电导率提高。
The high pure（SiO250 mg/kg） Zr0.84Y0.16O1.92 ＋ xMoO3（0.00 ≤ x ≤ 0.07） solid solution was prepared by the sol-gel method,then the effects of MoO3-doping on the structures and conductivity of the system was discussed.The system was characterized by X-ray diffraction（XRD）,field emission scanning electron microscopy（FE-SEM）,and AC impedance spectroscopy analysis.The results showed that MoO3 did not change the cubic fluorite-type structure of systems,the optimal doping value of MoO3 was 0.05%;MoO3 doping in Zr0.84Y0.16O1.92 solid electrolyte can lower the sintering temperature,promote the grain growth,improve the densification of the system and increase the grain boundary conductivity and total ionic conductivity.
出处
《应用化工》
CAS
CSCD
2012年第2期202-205,211,共5页
Applied Chemical Industry
基金
国家自然科学基金项目(20871023)
吉林省科技发展计划资助项目(20101549)
关键词
固体电解质
MoO3掺杂
烧结助剂
电导率
solid electrolyte
MoO3-doping
sintering aids
electrical conductivity
