【摘要】 采用交流复阻抗法对用于固体氧化物燃料电池的 Ag电极材料的高温 ( 850℃ )退化特性进行研究 .发现 Ag电极的性能退化不随时间单调变化 ,其界面反应电阻在初始阶段随时间急剧增大 ,达到最大值后开始缓慢下降 ,Warburg阻抗也有类似的特性更多还原

【Abstract】 The degeneration properties of a Ag Electrode used in solid oxide fuel cell were investigated by AC impedance spectroscopy under a high temperature (850 ℃). The results show that the degeneration did not change with time monotonicly. The resistance of the interface reaction increases rapidly with time in the initial period of time and reaches a maximum value, then decreases slowly. The similar property appears in Warburg impedance.更多还原