کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1294207 | 973599 | 2009 | 6 صفحه PDF | دانلود رایگان |
Zirconia doped with scandia and ceria (10Sc1CeSZ) is presented as an electrolyte in solid oxide electrolysis cells (SOECs) for hydrogen production at intermediate temperatures. At 700 °C, the conductivity of the 10Sc1CeSZ is 0.057 S cm−1 and the ohmic resistance at OCV is 0.27 Ω cm2. The electrolysis tests using Pt electrodes show that the oxygen ion conduction in the electrolyte produces high current densities when operating as a SOEC. The performance of cells with Ni-YSZ (yttria stabilised zirconia) cathodes are also tested under external potential load at temperatures between 600 °C and 900 °C. These preliminary results demonstrate the suitability of 10Sc1CeSZ as an electrolyte for SOECs although further work is required to develop suitable electrodes.
Journal: Journal of Power Sources - Volume 192, Issue 1, 1 July 2009, Pages 126–131