Catalysis of the hydrogen oxidation reactions by Sr-doped LaMn1 − yCryO3 ± δ oxides

► Thermochemical, oxygen nonstoichiometry and catalyst activity of LSCM SOFC anodes. ► Correlate TPR results with catalytic activity in hydrogen. ► Correlation of nonstoichiometry to catalytic activity in hydrogen. ► Anode activity as a function of LSCM Sr and Cr content. ► Catalytic activity of La0.9Sr0.1Mn0.6Cr0.4O3 determined by OCP EIS.