Structure Characterization of Gold Supported Al Pillared Montmorillonite Catalyst and Study of CO Catalytic Activity
Shao Hongfei;Ji Kejian;Liu Yuanjun;Deng Weihua;Zhao Xiaogang;Zhou Tong;Gao Yanli;CNGC Institute 53;
Al pillared montmorillonite as the carrier,after the surface load of the noble metal Au,catalyst was prepared by deposition precipitation. By the characterization methods such as XRD,TEM,XPS,structure of supports and catalysts were characterized. The variation law of the catalytic oxidation activity was studied. The results showed that Au was in a highly dispersed state of uniform distribution in Al pillared montmorillonite carrier surface and in mixed valence form Au0 and Au3+. The results of CO catalytic oxidation activity showed that after the load,the catalytic activity of the catalysts was significantly improved,and the catalytic activity increased with the load increasing. But when the load increased to a certain extent,its catalytic activity no longer increased,but also declined.
【CateGory Index】： O643.36