Preparation and Conductivity of Sr1-xBixFeO3-δ(x≤0.5) by Citrate Methods

Abstract

Abstract: Sr_1-xBi_xFeO_3-δ (x≤0.50) series oxide ionic/electronic conductors were prepared through citrate gel precursors. The product was characterized by means of XRD, IR, TG, DTA and ac impedance techniques. Pure perovskite-type phase was formed after the gel combusted and calcined at 800℃, and had an orthorhombic structure similar to that of SrFeO₃. Although the density of the product calcined at 85O"C remained 97% theoretical value, an extreme conductivity of 3.6Scm-1 was found at 400℃.

Key words: oxide ionic/electronic conductor, citrate gel method, perovskite, Sr_1-xBi_xFeO_3-δ（x≤0.50）

CLC Number:

TM911

ZHENG Wen-Jun,ZHAO Hong-Xi,XU Ming-Ming,PENG Ding-Kun,MENG Guang-Yao. Preparation and Conductivity of Sr_1-xBi_xFeO_3-δ(x≤0.5) by Citrate Methods[J]. Journal of Inorganic Materials.

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Preparation and Conductivity of Sr_1-xBi_xFeO_3-δ(x≤0.5) by Citrate Methods

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