作　　者： ; ;

机构地区： 武汉化工学院化工与制药学院化学工程与工艺系

出　　处： 《应用化学》 1996年第6期72-74,共3页

摘　　要： 钴铬复合氧化物超细微粒的制备、结构及其催化性能刘常坤，申永存，奚强（武汉化工学院精细化工系武汉４３００７３）关键词钴铬复合氧化物，超细微粒，催化剂，制备，结构，催化氧化，三甲苯酚，三甲苯醌２，３，６－三甲苯酚（ＴＭＰ）的氧化产物之一２，３，６－三甲苯... Cobalt chromium mixed oxide ultrafine particle catalysts were prepared by coprecipitation and sol-gel methods. The catalytic properties of catalysts for catalytic oxidation of 2,3,6-trimethylphenol to trimethyl-p-benzoquinone were investigated.It is shown that the catalyst with Co/Cr=1 prepared by sol-gel method is the best.The structures of catalysts were characterized by TEM,XRD and DTA-TG.The mixed oxide is amorphous under 350℃.The thermal stability of this amorphous catalyst is higher than that of Co3O4 and Cr2O3.

关 键 词： 钴铬复合氧化物 超细微粒 催化剂 催化性能

领　　域： [理学] [理学] [化学工程]