Perovskite as anode materials for solid oxide fuel cells

Solid-oxide fuel cells (SOFCs) have attracted considerable attentions due to their high energy conversion efficiency, high power density and extremely low pollution. Perovskite-based materials have been widely used as anode materials for SOFCs because of their high mixed ionic-electronic conductivity (MIEC) , favorable catalytic activity for fuel oxidation, and super-carbon coking resistance. The recent progress on the perovskite-based anode materials for SOFCs is reviewed. In order to find a way to satisfy the strict requirements of anode with hydrocarbon fuels, this article is focused on their phase stability, electronic and/or ionic conductivity, and catalytic activity for fuel oxidation. The main problems of current perovskite-based anodes for practical application are pointed out and the possible future research directions are proposed.