负载型纳米金催化剂在环己烷氧化中的催化性能  

CATALYTIC PERFORMANCE OF SUPPORTED NANO-GOLD CATALYST IN CYCLOHEXANE OXIDATION

作　　者：李德华[1] 周继承[1] 赵虹[1] 马利勇[1] 

机构地区：[1]湘潭大学化工学院,湖南湘潭411105

出　　处：《石油学报（石油加工）》2008年第5期575-580,共6页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金(20676111);湖南省教育厅重点项目(07A073);中国石油化工股份有限公司科技开发部项目(205054)资助

摘　　要：用沉积-沉淀(DP)的方法制备了负载型催化剂Au/TS-1。采用XRD、FT-IR、SEM、TEM等方法对制备的催化剂进行了表征,并将其用于催化环己烷氧化反应。结果表明,该催化剂在环己烷氧化反应中具有优异的催化活性。当加入0.02gAu的负载量为1%的催化剂Au/TS-1,在压力1.0MPa、150℃下反应2.5h,环己烷的转化率最高可达11.20%,环己酮、环己醇和环己基过氧化氢的总选择性达到89.60%,且催化剂使用4次后其活性基本不变。Supported nano-gold catalyst was prepared by deposition-precipitation method. The obtained Au/TS-1 was characterized and analyzed in cyclohexane selective oxidation. It was found by FT-IR, XRD, IR, SEM and TEM,and applied that the Au/TS-1 catalyst showed high catalytic performance in cyclohexane selective oxidation. With 0. 02 g of Au/TS-1 （w（Au） = 1%） as the catalyst, 11.20% of cyclohexane conversion and 89.60% of total selectivity to cyclohexanol, cyclohexanone and cyclohexylhydroperoxide were obtained in cyclohexane selective oxidation at 150℃ for 2.5h under the pressure of 1.0 MPa. Furthermore, the catalytic activity of Au/TS-1 had only a slight lost after reused three times.

关 键 词：纳米金 负载型催化剂 环己烷 选择性氧化 

分 类 号：O643[理学—物理化学]