MANGANESE-COBALT SPINEL OXIDES AS SURFACE MODIFIERS FOR STAINLESS STEEL INTERCONNECTS OF SOLID OXIDE FUEL CELLS

摘要

The adoption of ferritic stainless steels for SOFC interconnects is still under intensive evaluation due to the unresolved issues of chromium poisoning, low electrical conductivity, and long-term instability of the oxide scales. Application of manganese-cobalt spinel protection layers on the steel interconnects may be an effective approach to solve the problems. For an optimized performance, a series of Mn{sub}xCo{sub}(3-x)O{sub}4 (0