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中文摘要：
研究了新型固溶法合成La0.8Sr0.2MnO3 （LSM）包覆Ba0.5Sr0.5Co0.8Fe0.2O3（BSCF）复合粉体（LSM-BSCF）,并探讨了其作为中温固体氧化物燃料电池阴极材料的电化学性能.LSM-BSCF阴极结合了LSM和BSCF阴极的优点,不仅增大了三相界面,而且稳定了微观结构.当温度为600-750℃时,其极化阻抗为0.61-0.09 Ω·cm2.与溶液注入法制备的高性能电极相比,极大地提高了性能稳定性.
英文摘要：
La0.8Sr0.2MnO3 （LSM）-coated Ba0.5Sr0.5Co0.8Fe0.2O3 （BSCF） composite powder （LSM-BSCF） was synthesized by a novel solid-solution method and investigated electrochemically as a cathode material for intermediate temperature solid oxide fuel cells.The cathode combined the merits of LSM and BSCF cathodes through an extended triple phase boundary and stabilized microstructure and demonstrated a polarization resistance between 0.61 and 0.09 Ω cm2 at 600 to 750 ℃.Compared with high performance cathodes prepared by solution impregnation,this LSM-BSCF cathode greatly improved performance stability.
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