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Novel Nano-composites SDC-LiNaSO4 as Functional Layer for ITSOFC.
Lv, Weiming; Tong, Ze; Yin, Yi-Mei; Yin, Jiewei; Ma, Zi-Feng.
Afiliación
  • Lv W; 1Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240 People's Republic of China.
  • Tong Z; Shanghai Research and Development Center for Polymer Materials, Shanghai, 200235 People's Republic of China.
  • Yin YM; 1Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240 People's Republic of China.
  • Yin J; 1Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240 People's Republic of China.
  • Ma ZF; 1Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240 People's Republic of China.
Nanomicro Lett ; 7(3): 268-275, 2015.
Article en En | MEDLINE | ID: mdl-30464971
As an ionic conductive functional layer of intermediate temperature solid oxide fuel cells (ITSOFC), samarium-doped ceria (SDC)-LiNaSO4 nano-composites were synthesized by a sol-gel method and their properties were investigated. It was found that the content of LiNaSO4 strongly affected the crystal phase, defect concentration, and conductivity of the composites. When the content of LiNaSO4 was 20 wt%, the highest conductivity of the composite was found to be, respectively, 0.22, 0.26, and 0.35 S cm-1 at temperatures of 550, 600, and 700 °C, which are much higher than those of SDC. The peak power density of the single cell using this composite as an interlayer was improved to, respectively, 0.23, 0.39, and 0.88 W cm-2 at 500, 600, and 700 °C comparing with that of the SDC-based cell. Further, the SDC-LiNaSO4(20 wt%)-based cell also displayed better thermal stability according to the performance measurements at 560 °C for 50 h. These results reveal that SDC-LiNaSO4 composite may be a potential good candidate as interlayer for ITSOFC due to its high ionic conductivity and thermal stability.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanomicro Lett Año: 2015 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
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Imprimir
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanomicro Lett Año: 2015 Tipo del documento: Article Pais de publicación: Alemania