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Опубликовано 2009-01-21 Опубликовано на SciPeople2011-01-21 06:41:06 ЖурналProceedings of the 54th DAE Solid State Physics Symposium (2009)

Studies on synthesis and characterizations of gadolinium doped ceria as solid electrolyte
M. G. Chourashiya / Muralidhar Chourashiya
Аннотация Due to need of pollution-free and efficient-power-generation devices, in past few years, pace of research has been rapidly driven by fuel cell technology. The thesis contributes in the same regard, in which conventional solid electrolyte of solid oxide fuel cell is replaced by alternate material (Gd-doped-Ceria-GDC) and its performance has been tested. The process parameters of ceramic route and spray-pyrolysis-technique were optimized to obtain dense ‘electrolyte-grade’ GDC-bulk and thin-film samples, respectively. In symmetrical cell configuration, GDC-bulk sample showed open-circuit-voltage of 0.84 volts at 500°C. The grain interior conductivity of 13μm GDC-film deposited onto electrode-grade NiO-GDC substrate is ~0.1S/cm at 500°C.


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