La_(1-x)Sr_xMnO_3阴极材料的制备及性能

Syntheses and Properties of La_(1-x)Sr_xMnO_3

溶胶-凝胶法制备单相性、均匀性较好的La(1-x)SrxMnO3（x=0．1，0．2，0．3，0．4，0．5）纳米微粉系列样品，并用X射线衍射分析样品的结构类型．考察样品的烧结特性和高温电导率随晶粒尺寸的变化规律．通过电池伏安特性曲线的测量，对锰酸锶镧作为（ZrO2）0.92（Y2O3）0.08电解质燃料电池阴极的性能进行研究．

In this paper, the La1-xSrxMnO3 (x = 0. 0 ~ 0. 5 ) nanoparticles were prepared by sol-gel method. The phase composition and structure of the saTnples were analysed by Tneans of X-ray diffraction. Electrlcal properties of the samples wele detected. I-V characterlstics of as the cathode of the (H2/H2O ) -Ag/ (Zro3 ) 0. 02 (Y2O3 ) 0.08/ La1-xSrxMnO3,-air fuel cell were tested.