Assisted combustion synthesis and characterization of Pr_0.6Sr_0.4MnO_3±δ nano crystalline powder as cathode material for IT-SOFC

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• 作者：P. Matheswaran^a ; M. Rajasekhar^b ; ^{drmrsofc@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; A. Subramania^c
• 关键词：Combustion method ; Cathode material ; Praseodymium manganite ; IT-SOFC ; Electrical conductivity
• 刊名：Ceramics International
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：43
• 期：1
• 页码：988-991
• 全文大小：510 K

文摘

Pr_0.6Sr_0.4MnO_3±δ (PSM) nano crystalline powders were synthesized as cathode material by assisted combustion method at intermediate temperature for 6 h using a novel aspartic acid as fuel. Thermal decomposition behaviour of the prepared nano powder was carried out by thermo gravimetric-differential thermal analysis. The crystallization behaviour and structural morphology of Pr_0.6Sr_0.4MnO_3±δ nano powder was investigated by X-ray diffraction and SEM analysis. The average crystallite size was determined from X-ray line broadening analysis by using the Scherrer equation. This method remarkably reduced the synthesis time and temperature. The electrical conductivity of the sample was measured by the ‘dc four probe’ techniques in the temperature range of 500–800 °C.