过渡金属Ag、Co、Ni、Cu在CeAlO催化剂载体上的脱硝活性研究  

Study on Denitration Activity of Transition Metals of Ag,Co,Ni and Cu on CeAlO Catalyst Carrier

作　　者：许振冲 吴爽[1] 周明东[1] 刘静敏[1] 

机构地区：[1]辽宁石油化工大学化学与材料科学学院,辽宁抚顺113001

出　　处：《稀有金属与硬质合金》2015年第6期46-51,共6页Rare Metals and Cemented Carbides

基　　金：国家科技支撑项目(2012BAF03B00)

摘　　要：将过渡金属Ag、Co、Ni、Cu掺杂在CeAlO催化剂载体上,研究其脱硝活性。XRD、SEM、BET分析结果显示,过渡金属Ag、Co、Ni、Cu能够很好地分散在CeAlO载体上,使催化剂活性中心数增多,从而促进水气变换反应,提高NO的转化率。对比研究结果得出,Ag能更好地与CeAlO载体形成一种活性InAgO2中间体,促进了Ag的分散,从而使Ag/CeAlO催化剂的脱硝活性和抗硫稳定性最强。Transition metals of Ag,Co,Ni and Cu were doped on CeAlO catalyst carrier to investigate their denitration activity.The results from XRD,SEM and BET show that transition metals of Ag,Co,Ni and Cu can be well dispersed on CeAlO carrier to increase the number of catalyst active centers and then enhance water-gas shift reaction and improve NO conversion.The results from comparison study show that Ag can well interact with CeAlO carrier to form a reactive InAgO2 intermediate and accelerate Ag dispersion to ensure highest denitration activity and sulfur resistance in the Ag/CeAlO catalyst.

关 键 词：过渡金属 CeAlO 催化剂载体 脱硝活性 抗硫稳定性 

分 类 号：O643.36[理学—物理化学] X734.2[理学—化学]