ANbO3 (A = Na, K) and (A′ = Ca, Sr) composite oxides for oxidative coupling of methane and oxidative dehydrogenation of ethane: perovskite vs. layered perovskite

For OCM, the reactivity of regular perovskite is better than layered perovskite due to its high-temperature crystal phase. For ODHE, the C 2 H 4 selectivity of layered perovskite is better than regular perovskite due to its weaker Nb–O bond strength.