화학공학소재연구정보센터
Catalysis Today, Vol.42, No.3, 279-281, 1998
The influence of defect nature on catalytic performance of Li, Na-doped MgO, CaO and SrO in the oxidative coupling of methane
The study of the defects in MgO, CaO doped by alkali metals and SrO has been carried out by ESR-method using gamma-irradiation at 77 K. It established the influence of reaction medium on formation of the active centers in oxidative coupling of methane. It has been shown that selectivity of C-2 products over CaO is dependent on the quantity of M+CO3- centers while for SrO catalyst the high activity and C-2-selectivity may be caused by oxyfluoride species.