Methane oxidation to synthesis gas using lattice oxygen in La_(1-x)Sr_xFeO_3 perovskite oxides instead of molecular oxygen

摘要

In this paper, partial oxidation of methane to synthesis gas using lattice oxygen instead of molecular oxygen was investigated. A perovskite La_(1-x)Sr_xFeO_3 (x=0, 0.1, 0.2, 0.5) oxide was used as an oxygen provider. The redox cycle experiments show that methane can be oxidized to CO and H_2 by the lattice oxygen of La_(1-x)Sr_xFeO_3 (x=0, 0.1, 0.2, 0.5) oxide, while the lost lattice oxygen can be supplemented by re-oxidation.