期刊
CERAMICS INTERNATIONAL
卷 44, 期 1, 页码 170-174出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2017.09.155
关键词
Electrolyte; Solid oxide fuel cells; Germanium; Nanocomposite; Morphology
In this study we present a new nanocomposite electrolyte based on samarium (Sm) and germanium (Ge) co doped ceria Ce0.7Sm0.15Ge0.15O2.delta (SGeDC). The nanocomposite electrolyte was prepared using co-precipitation method. The crystal structure and surface morphology were determined using x-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. Four probe dc conductivity indicated the value of 0.074 S/cm at 650 degrees C. The Fuel cell performance was carried out using hydrogen as fuel. The maximum OCV observed was 0.95 V while the peak power density came out to be 600 mW/cm(2) at 600 degrees C. It is suggested that adding Ge, the conductivity as well as performance of this new nanocomposite electrolyte is comparatively enhanced and it can find potential applications in low temperature solid oxide Fuel cells (LTSOFCs).
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