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).