Cathode Materials LaNi1−xCuxO3 for Low Temperature Solid Oxide Fuel Cells

다국어 초록 (Multilingual Abstract)

New cathode materials LaNi1−xCuxO3 (typically LaNi0.8Cu0.2O3) were synthesized using a co-precipitation method. The structure
and morphology of the powders were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The composite
material [Ce0.8Sm0.2O2-ä(SDC) and carbonate (Na2CO3,Li2CO3)], NiO and LaNi1−xCuxO3 were used as the electrolyte, anode
and cathode, respectively. The electrochemical performance of La-Ni-Cu-O perovskite oxide at low temperatures (400~550oC) was
studied. The results showed that LaNi0.8Cu0.2O3 precursor powder prepared through a co-precipitation method and calcined at
860oC for 2 h formed uniform grains with diameters in the range of 400~500 nm. The maximum power density and the short circuit
current density of the single cell unit at 550oC were found to be 390 mW/cm2 and 968 mA/cm2, respectively.

다국어 초록 (Multilingual Abstract)

New cathode materials LaNi1−xCuxO3 (typically LaNi0.8Cu0.2O3) were synthesized using a co-precipitation method. The structure
and morphology of the powders were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The composite
material [Ce0.8Sm0.2O2-ä(SDC) and carbonate (Na2CO3,Li2CO3)], NiO and LaNi1−xCuxO3 were used as the electrolyte, anode
and cathode, respectively. The electrochemical performance of La-Ni-Cu-O perovskite oxide at low temperatures (400~550oC) was
studied. The results showed that LaNi0.8Cu0.2O3 precursor powder prepared through a co-precipitation method and calcined at
860oC for 2 h formed uniform grains with diameters in the range of 400~500 nm. The maximum power density and the short circuit
current density of the single cell unit at 550oC were found to be 390 mW/cm2 and 968 mA/cm2, respectively.

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