南京工业大学学报（自然科学版）2017，Vol.39Issue(6)：7-11,5.DOI:10.3969/j.issn.1671-7627.2017.06.002
界面层对LaBaCo2O5+δ阴极电化学性能的影响
Effect of buffer interlayer on electrochemical performances of LaBaCo2O5+δcathode
摘要
Abstract
Yttria-stabilized zirconia ( YSZ) buffer interlayer coatings were fabricated between LaBaCo2 O5+δ( LBCO) cathode and YSZ electrolyte pellet through sol-gel process for intermediate temperature solid oxide fuel cells ( ITSOFC ) . The crystal structure and chemical compatibility were investigated by X-ray diffraction(XRD).The microstructure was investigated by scanning electron microscopy(SEM) analysis and the electrochemical performances were studied by impedance spectroscopy and cyclic voltammetry. Results showed that "islands" array structure was formed on the electrolyte surface with the buffer interlayer.In addition,the area-specific resistance of LBCO cathode was decreased from 0354Ω·cm2 to 0215 Ω·cm2,reduced by about 393%.The introduction of buffer interlayer led the decreasing of area-specific resistance and polarization of cathode with a better electrochemical performance.关键词
中温固体氧化物燃料电池/过渡界面层/阴极/电化学性能Key words
intermediate temperature solid oxide fuel cell ( ITSOFC )/buffer interlayer/cathode/electrochemical performance分类
信息技术与安全科学引用本文复制引用
戴海璐,陈涵,郭露村..界面层对LaBaCo2O5+δ阴极电化学性能的影响[J].南京工业大学学报（自然科学版）,2017,39(6):7-11,5.基金项目
江苏高校优势学科建设工程( PAPD) （ PAPD）
江苏省普通高校研究生科研创新计划( CXZZ13_0423) （ CXZZ13_0423）
