摘要
利用高温固相法制备了一系列高温质子导体Srx（CeZr）0.9Y0.1O3-δ（0.90≤x≤1.20），并对其物相、微观结构、稳定性、电导率进行了研究。结果表明，32在0．90～1．20范围内，Srx（CeZr）0.9Y0.1O3-δ仍然能保持钙钛矿结构；SEM图可以看出随着x的增加，样品的致密性增加；当x〉1．03时，材料不稳定，而当x〈1．03时，材料非常稳定；非化学计量比的样品的电导率除x=0．90外，均比化学计量比Sr（CeZr）0.9Y0.1O3-δ的电导率要高。
Srx（CeZr）0.9 Y0.1O3-δ（0.90≤x≤1.20） were synthesized by high temperature solid-state reaction. The phase,microstructure, sintering behavior, chemical stability and conductivity were investigated. X-ray diffraction （XRD） patterns showed that Srx （CeZr）0.9 Y0.1O3-δ still maintain a single perovskite type while x in the range of 0.95-1.20. The sinterability improved with increasing x concentration from SENI photographs. The chemical stability of material was steady while x〈l. 03, but the material was not unsteady while x〉1. 03. The nonstoichiometric specimens （make an exception of x = 0. 90） have higher eonductivities than the stoiehiometrie one（St （CeZr）0.9Y0. 1O3-δ）.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2009年第5期798-801,共4页
Journal of Functional Materials
基金
国家自然科学基金资助项目(50772030,50572024)
教育部归国人员启动基金资助项目(2005-12)
唐山市科学技术研究与发展计划资助项目(04364001B-15)
关键词
非化学计量比
高温质子导体
钙钛矿结构
nonstoichiometric
high-temperature proton conductors
perovskite structure
