Journal of Inorganic Materials

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

ZHENG Wen-Jun1; ZHAO Hong-Xi1; XU Ming-Ming2; PENG Ding-Kun2; MENG Guang-Yao2   

  1. 1.Department of Chemistry Nankai University; Tianjin 300071; China; 2.Department of MaterialsScience & Engineering; University of Science & Technology of China; Hefei 230026; China
  • Received:1999-05-28 Revised:1999-06-30 Published:2000-06-20 Online:2000-06-20

Abstract: Sr1-xBixFeO3-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, Sr1-xBixFeO3-δx≤0.50)

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