NiO对Au/TiO_2催化甲醇水蒸汽重整制氢性能的影响  

Effect of NiO on the Catalytic Performance of Au/TiO_2 Catalyst for Hydrogen Production from Methanol Steam Reforming

作　　者：翟彦青[1] 徐新 崔冰冰[1] 罗国华[1] 

机构地区：[1]北京石油化工学院化学工程系,北京102617

出　　处：《北京石油化工学院学报》2009年第3期4-8,共5页Journal of Beijing Institute of Petrochemical Technology

基　　金：北京市委组织部资助项目;项目号:20081D0500500142;北京石油化工学院青年科研基金资助项目;项目号:N08-01

摘　　要：采用沉积—沉淀方法制备了一系列Au—NiO/TiO2催化剂,考察了助剂NiO的加入量、焙烧温度对催化活性的影响。研究表明:助剂NiO的加入可以明显提高Au—NiO/TiO2催化甲醇水蒸汽重整制氢的活性;Au与NiO的配比存在最佳值,当Au负载量(质量分数)为2%,Au与NiO的质量比为1∶5时,催化效果最佳;2%Au—10%NiO/TiO2催化剂的催化活性随焙烧温度的升高而降低。A series of Au/TiO2 catalysts were prepared by the deposition - precipitation method. The influences of NiO loading and calcination temperature on the catalytic activity of Au/TiO2 catalysts for the hydrogen production from methanol steam reforming were studied. The results show that NiO promoter can enhance the catalytic activity of methanol steam reforming; Au-NiO/ TiO2 with 2% Au loading, in which Au/NiO weight ratio is 1 ： 5 exhibits the optimal catalytic performances; the activity of the 2% Au-10%NiO/TiO2 catalyst decreases with the increase of the calcination temperature.

关 键 词：NIO AU/TIO2 甲醇水蒸汽重整制氢 

分 类 号：O643.3[理学—物理化学]