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        Preparation and application of nano-dispersed Ag in La0.6Sr0.4CoxFe1-xO3-δ perovskites for intermediate-temperature solid oxide fuel cell

        Y. Liu,S. Hashimoto,K. Yasumoto,K. Takei,M. Mori,Y. Funahashi,Y. Fijishiro,A. Hirano,Y. Takeda 한국물리학회 2009 Current Applied Physics Vol.9 No.11

        The catalytic activity of the La0.6Sr0.4CoxFe1-xO3-δ (x = 0.2) perovskite cathode was significantly improved by introducing Ag. This strongly depends on the particle size of Ag that relates to the synthesis route. The Ag particles in nano-range were in situ incorporated into the La0.6Sr0.4Co0.2Fe0.8O3-δ based cathode using a novel infiltration. The functional cathode was successfully operated on the anode-supported cell with a ceria thin-electrolyte resulting in a higher cell output at 500 ℃. Durability of the cell was evaluated within a short-term period. The catalytic activity of the La0.6Sr0.4CoxFe1-xO3-δ (x = 0.2) perovskite cathode was significantly improved by introducing Ag. This strongly depends on the particle size of Ag that relates to the synthesis route. The Ag particles in nano-range were in situ incorporated into the La0.6Sr0.4Co0.2Fe0.8O3-δ based cathode using a novel infiltration. The functional cathode was successfully operated on the anode-supported cell with a ceria thin-electrolyte resulting in a higher cell output at 500 ℃. Durability of the cell was evaluated within a short-term period.

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