论文部分内容阅读
A series of La_2O_3 cartalysts modified by A_2BO_4 compounds with supe-rionic conductivity were prepared. It was observed that the addition of A_2BO_4compounds to La_2O_3 enhances C_2 yields, and the C_2 yields over the modified cat-alysts are intimately related with their conductivities. The effects of A_2BO_4compounds on the conductivity and catalytic performance were discussed. Onlywhen ion A has high conductivity, can the catalyst show good catalytic perfor-mance. A mechanism for interpreting the significant effects of alkali metals wasproposed.