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Information × Registration Number 0219U101303, 0116U008655 , R & D reports Title Synthesis of complex oxide and metal-oxide hydrogen-permeable systems for application as components of solid oxide fuel cells popup.stage_title Head Solonin Yuriy M., Доктор фізико-математичних наук Registration Date 21-06-2019 Organization Institute for Problems in Materials Science popup.description2 The literature data on the materials for solid oxide fuel cells with proton conductivity was reviewed. It was found that materials based on BaZrCe(RE)O3 are most promising due to their high proton conductivity and chemical resistance. A method of solid-phase synthesis using barium carbonate and metal oxides as starting materials was used for obtaining of complex oxide powders. The phase composition and morphology of anode, electrolyte and cathode powders after synthesis was investigated. It was shown that the optimum temperature for synthesis is 1000 °C. The sintering parameters of the obtained powders were optimized at temperatures of 1400-1500 °C in order to obtain a dense electrolyte and a porous anode and cathode. It was found that the sintering of BaZr0.6Co0.4O3-y and NiO/BaZr0.8Ce0.1Sc0.1O3-y powders at a temperature of 1400 °C allows to obtain materials with a porosity of 25-35%, which meets the requirements for the fuel cell electrodes. In turn, sintering of electrolyte to a density of 95% is possible at sintering temperatures higher than 1500 °C. The electronic conductivity of the reduced anode was 1562-1856 Sm/cm at 25 °C, which corresponds to the literary data for similar materials. It was found that ceramic with 10 mol% Sc2O3 has the highest hydrogen permeability and ambipolar conductivity among BaZr0.8Ce0.2-xScxO3-y (x = 0.05; 0.1; 0.15 and 0.2) ceramics. The obtained materials can be used as components of fuel cells with proton conductivity. Product Description popup.authors Bezorozhev Oleksiy V. Hetman Olga І. Morozov Ihor A. popup.nrat_date 2020-04-02 Close