A combinatorial approach to synthesis of the La0.8Sr0.2Co1 − yMnyO3 ± δ family of perovskite-type mixed conducting metal oxides and characterisation of the surface oxygen mobility

► Combinatorial synthesis of perovskite-type La0.8Sr0.2Co1 − yMnyO3 ± δ family ► Multicycle-temperature programmed oxidation, desorption, reduction ► B-site cobalt/manganese doping influences ease of lattice oxygen removal. ► Labile surface oxygen related to A-site lanthanum/strontium cation