کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1271595 | 1497459 | 2015 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Enhanced performance and stability of interlayer-free La0.6Sr0.4Co0.2Fe0.8O3−δ-Ce0.8Zr0.2O2−δ cathode for solid oxide fuel cells Enhanced performance and stability of interlayer-free La0.6Sr0.4Co0.2Fe0.8O3−δ-Ce0.8Zr0.2O2−δ cathode for solid oxide fuel cells](/preview/png/1271595.png)
• Interlayer-free LSCF-CZ electrode is developed on YSZ.
• CZ impedes the reaction between cathode and YSZ electrolyte.
• Incorporation of oxygen ions from LSCF-CZ cathode into electrolyte is accelerated.
• LSCF-CZ cathode shows high electrochemical stability.
Interlayer-free La0.6Sr0.4Co0.2Fe0.8O3−δ-Ce0.8Zr0.2O2−δ (LSCF-CZ) composite cathode on YSZ electrolyte has been studied by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical impedance spectra (EIS). The addition of CZ suppresses the formation of non-conductive SrZrO3 at the cathode and YSZ electrolyte interface. As a result, the LSCF-CZ cell performance is greatly elevated. The LSCF-CZ cell exhibits 8.7 times higher current density than the LSCF cell at 0.8 V and 600 °C. The incorporation of oxygen anion from LSCF-CZ cathode into YSZ electrolyte is significantly accelerated. The stability of the LSCF-CZ cathode is remarkably improved as compared with the LSCF cathode at 600 °C.
Ce0.8Zr0.2O2−δ-La0.6Sr0.4Co0.2Fe0.8O3−δ (CZ-LSCF) composite cathode on YSZ electrolyte displays excellent electrochemical performance and high stability.Figure optionsDownload as PowerPoint slide
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 14, 20 April 2015, Pages 4861–4867