Novel intermediate temperature ceramic fuel cells with doped ceria-based composite electrolytes

• Published in: Solid state ionics Vol. 148; no. 3; pp. 533 - 537
• Main Authors: Meng, G.Y, Fu, Q.X, Zha, S.W, Xia, C.R, Liu, X.Q, Peng, D.K
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.06.2002; Elsevier Science
• Subjects: Applied sciences; Conductivity; Doped ceria salt composite electrolyte; Energy; Energy. Thermal use of fuels; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc; Exact sciences and technology; Fuel cells; Intermediate temperature fuel cells; Conductivity; Intermediate temperature fuel cells; Doped ceria salt composite electrolyte; Stability; Doped compound; Proton conductivity; Cerium oxide; Performance; Solid oxide fuel cell; Composite material
• ISSN: 0167-2738; 1872-7689
• DOI: 10.1016/S0167-2738(02)00114-5

A series of novel composite electrolytes, consisting of doped ceria (DCO) and salts were developed and examined. The salts included chlorides and carbonates. Their oxygen ion and/or proton conductivity at intermediate temperature (IT) range (500–700 °C) can be even 2–15 times higher than DCO. Furthermore, they also show higher ionic transference number than DCO. The long-term stability of fuel cells based on these composite electrolytes was also discussed.