摘要
借助于交流复阻抗测试技术和电子扫描电镜设备,对以Y2O3稳定ZrO2固体氧离子导体(YSZ)为基体的Pt/YSZ电极结构电学性能和电极形貌随时间的老化变化特性进行了研究;根据作者提出了一种有关Pt/YSZ电极结构电极界面的形貌模型,对不同老化时间下的电极Pt/空气/YSZ三相界面的长度进行了定量计算。实验测试和模型计算等结果都表明:Pt/YSZ电极结构的电学性能和电极形貌均随老化时间出现了明显的变化。
By means of equipment of SEM and complex AC impedance, observation that the electrics characteristic and electrode appearance of the Pt/YSZ(yttria stabilized zirconia) electrode structure at different aging time show notable change. In addition, a new model of the electrode and electrolyte interface (Pt /YSZ) was published, the lengths of triple phase boundary of electrode at different aging time were calculated by this model. The calculated result of this model also approved above experiment conclusion.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2004年第2期200-202,205,共4页
Journal of Functional Materials
基金
国家科技部国家级火炬计划项目(2001EB001131)
