Screen-printed (La,Sr)CrO3 coatings on ferritic stainless steel interconnects for solid oxide fuel cells using nanopowders prepared by means of ultrasonic spray pyrolysis

► Ultra-fine and homogeneous (La,Sr)CrO3 powders were obtained via USP. ► The powders were used to coat DIN 50049 steel with screen-printed (La,Sr)CrO3. ► (La,Sr)CrO3 coatings improve resistance of steel to oxidation in SOFC conditions. ► Intermediate reaction multilayer affects electrical properties of the composite. ► The composite protects against Cr-vaporization and may be used in SOFCs.