Alkali-Added Catalysts Based on LaAlO3 Perovskite for the Oxidative Coupling of Methane

In this study, we aimed to enhance the catalytic activity of perovskite catalysts and elucidate their behavior in oxidative coupling methane (OCM), using alkali-added LaAlO3 catalysts. We prepared LaAlO3_XY (X = Li, Na, K, Y mol %) applied them OCM reaction. The results showed that catalysts’ activities were promoted compared catalyst. reaction, ethane was first synthesized through dimerization methyl radicals, which produced from reaction oxygen vacancy high ethylene selectivity originated abundance electrophilic lattice species, facilitating selective formation C2 hydrocarbons ethane. COx (carbon monoxide carbon dioxide) catalyst its nucleophilic favoring production concluded species play a significant role producing ethylene. obtained alkali-adding could be an effective method for improving