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The Effect of Constituent, Interfacial Properties and Morphology on the Dielectric Response of MIEC Membranes

机译:成分,界面性质和形态对MIEC膜介电响应的影响

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Mixed ionic and electronic conducting (MIEC) ceramic membranes are HeteroFoaM's which play an essential role in a number of energy conversion related systems including the solid oxide fuel cell (SOFC), oxygen separation and permeation membranes, partial oxidization membrane reactors for natural gas processing, and high temperature electrolysis cells. Dual phase oxygen membranes consisting of an ionic conducting phase Ce_(0.8)Gd_(0.2)O_2 (CGO) and an electronic conductive phase CoFe_2O_4 (CFO) were fabricated and characterized by structural (XRD), microstructural (SEM-EDS) and broadband dielectric measurement techniques. In-situ measurements of the dielectric properties of working oxygen separation membranes are presented which indicate that the material's dielectric behavior can be an indicator for MIEC performance.
机译:混合离子和电子导电(MIEC)陶瓷膜是HeteroFoaM,在许多与能量转换相关的系统中,包括固体氧化物燃料电池(SOFC),氧气分离和渗透膜,用于天然气加工的部分氧化膜反应器,和高温电解池。制备了由离子导电相Ce_(0.8)Gd_(0.2)O_2(CGO)和电子导电相CoFe_2O_4(CFO)组成的双相氧膜,并通过结构(XRD),微结构(SEM-EDS)和宽带电介质表征测量技术。提出了对工作氧分离膜介电性能的原位测量,表明该材料的介电性能可以作为MIEC性能的指标。

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