کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1277370 | 1497569 | 2011 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Novel layered perovskite SmBaCu2O5+δ as a potential cathode for intermediate temperature solid oxide fuel cells Novel layered perovskite SmBaCu2O5+δ as a potential cathode for intermediate temperature solid oxide fuel cells](/preview/png/1277370.png)
A novel layered perovskite SmBaCu2O5+δ (SBCO) as a potential cathode for intermediate temperature solid oxide fuel cells (IT-SOFC) has been investigated in this paper. The SmBaCu2O5+δ oxide was synthesized by EDTA- Citrate complexing sol-gel process. The crystal structure, the thermal expansion, the electrical conductivity and electrochemical properties have been characterized by X-ray diffraction (XRD), dilatometer, four-probe dc method, electrochemical impedance spectroscopy (EIS) and cathodic polarization examinations. The average thermal expansion coefficient (TEC) of SBCO was 14.6 × 10−6/ °C in the temperature range of 50–800 °C, which matched Sm-doped ceria (SDC) electrolytes. The electrode polarization resistance was 0.469 Ωcm2. Considering low thermal expansions and good electrochemical properties, layered perovskite SBCO shows promising performance as cathode material for IT-SOFCs.
▶ We investigate a novel layered perovskite free-cobalt SmBaCu2O5+δas a potential cathode for IT-SOFC. ▶ The average thermal expansion coefficient of SmBaCu2O5+δ is much lower than that of SmBaCo2O5+δ. ▶ The electrode polarization resistance is as low as 0.469 Ωcm2 at 700 °C for SmBaCu2O5+δ.
Journal: International Journal of Hydrogen Energy - Volume 36, Issue 24, December 2011, Pages 15715–15721