Oxidative Coupling of Methane over Ba-incorporated LaInO₃ Perovskite Catalyst

Abstract

We found that LaInO₃ perovskite catalyst showed high activity for oxidative coupling of methane (OCM). Partial substitution of La³⁺ site in the LaInO₃ catalyst with Ba²⁺ increased its catalytic activity and selectivity to C2 hydrocarbons drastically. The partial substitution of La³⁺ site in LaInO₃ with Ba²⁺ increased oxygen vacancies in the stable cubic phase, and then contributed to the production of active oxygen species on its surface for selective C2 formation.