Comparison of LaFeO3, La0.8Sr0.2FeO3, and La0.8Sr0.2Fe0.9Co0.1O3 perovskite oxides as oxygen carrier for partial oxidation of methane

Abstract Comparison of LaFeO 3 , La 0.8 Sr 0.2 FeO 3 , and La 0.8 Sr 0.2 Fe 0.9 Co 0.1 O 3 perovskite oxides as oxygen carrier for partial oxidation of methane in the absence of gaseous oxygen was investigated by continuous flow reaction and sequential redox reaction. Methane was oxidized to syngas with high selectivity by oxygen species of perovskite oxides in the absence of gaseous oxygen. The sequential redox reaction revealed that the structural stability and continuous oxygen supply in redox reaction decreased over La 0.8 Sr 0.2 Fe 0.9 Co 0.1 O 3 oxide, while LaFeO 3 and La 0.8 Sr 0.2 FeO 3 exhibited excellent structural stability and continuous oxygen supply.