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New cathode and anode materials for fuel cells with an electrolyte based on alkali carbonate melts have been studied. The regions of the orthorhombic and rhombohedral phases in the LaFe1–yCoyO3 + x/2Li2O system in air and in contact with molten (Li0.68K0.32)2CO3 electrolyte were investigated. The electric conductivity was analyzed in the range 300–1020 K. The electrocatalytic...
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