【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...更多还原

【Abstract】 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.更多还原