Effect of oxidant to fuel ratio on properties of yttrium doped barium cerate (BCY20)

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• 作者：S. T. Jadhav ; S. A. Patil ; C. H. Bhosale…
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2015
• 出版时间：July 2015
• 年：2015
• 卷：26
• 期：7
• 页码：4854-4861
• 全文大小：1,527 KB
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• 作者单位：S. T. Jadhav (1)
  S. A. Patil (2)
  C. H. Bhosale (1)
  V. R. Puri (1)
  L. D. Jadhav (3)
  
  1. Department of Physics, Shivaji University, Kolhapur, 416 004, India
  2. Department of Chemistry, Hanyang University, Seoul, South Korea
  3. Electrochemical Energy Materials Laboratory, Department of Physics, Rajaram College, Kolhapur, 416 004, India
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Optical and Electronic Materials
  Characterization and Evaluation Materials
  
• 出版者：Springer New York
• ISSN：1573-482X

文摘

20?% yttrium doped barium cerate (BCY20) powder has been synthesized by cost effective solution combustion method and the effect of oxidant to fuel ratio on the structural morphological and electrical properties is reported. The phase formation and evolution is studied by using XRD. The carbonate free orthorhombic BCY20 phase is obtained for optimum oxidant to fuel ratio. The microstructure of the pellets sintered at 1573?K is examined through scanning electron microscopy and also with transmission electron microscopy. The vibrational modes are detected by Raman spectroscopy. The presence of Ba, Ce and Y is confirmed with elemental analysis. The dc conductivities of sintered pellets measured in air atmosphere at 873?K are 1.6?×?10?, 2?×?10? and 1.9?×?10??S/cm for fuel lean, optimum and rich ratio respectively.