The Lanthanum-Scandate- and Lanthanum-Cobaltite-Based Composite Materials for Proton–Ceramic Electrochemical Devices
摘要
Abstract
A citrate–nitrate synthesis of individual materials La0.9Sr0.1Sc1 – xCoxO3 – δ and La0.9Sr0.1CoO3 – δ and their based composites is performed. Composite materials are obtained by solid-phase mixing in different percentages of individual phases, followed by pressing and sintering. The obtained individual and composite materials are explored by X-ray phase analysis and dilatometry. The electrical conductivity of the obtained samples is studied by a direct-current four-probe method depending on the temperature and the gas phase composition. Unique studies of the ability of composites to the ammonia direct decomposition directly at the electrode layer of the fuel cell are carried out.