Record number :
Title of article :
Performance evaluation of Sm0.5Sr0.5CoO3−δ fibers with embedded Sm0.2Ce0.8O1.9 particles as a solid oxide fuel cell composite cathode
Author/Authors :
Choi، نويسنده , , Jinyi and Kim، نويسنده , , Byeongseok and Shin، نويسنده , , Dongwook، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
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Abstract :
Sm0.2Ce0.8O1.9 (SDC)–embedded Sm0.5Sr0.5CoO3−δ (SSC) composite fibers were successfully fabricated by electrospinning using commercial SDC nanopowders and an SSC precursor gel containing polyvinyl alcohol (PVA) and hydrated metal nitrate. After calcination of the composite fibers at 800 °C, the fibers of 300 ± 80 nm in diameter with a well-developed SSC cubic-perovskite structure and fluorite SDC were successfully obtained. An anode-supported single cell composed of NiO–Gd0.2Ce0.8O1.9 (GDC)/GDC/SSC–SDC fibers was fabricated, and its electrochemical performance was evaluated. The maximum power densities were 1250 and 360 mW/cm2 at 700 and 550 °C, respectively, which we ascribe to the excellent properties of the SSC fibers with embedded SDC particles such as a highly porous and continuous structure promoting mass transport and a charge transfer reaction.
Keywords :
Composite cathode , SOFCs , 1D structure , Ceramic fibers
Journal title :
Journal of the European Ceramic Society
Journal title :
Journal of the European Ceramic Society
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