Effect of Mo contents on properties of Mo/ZSM-5 zeolite catalyst for NOx reduction

编号 zgly0000376674

文献类型 期刊论文

文献题名 Effect of Mo contents on properties of Mo/ZSM-5 zeolite catalyst for NOx reduction

作者 LIZhe  HUANGWei  XIEKe-chang 

作者单位 KeyLaboratoryofCoalScienceandTechnologyoftheMinistryofEducationandShanxiProvince 

母体文献 Journal of Environmental Sciences;环境科学学报: 英文版 

年卷期 2005,17(1)

页码 103-105

年份 2005 

分类号 X511 

关键词 催化剂  沸石  氮氧化物  钼  环境保护  大气污染  治理方法 

文摘内容 Mo/ZSM-5 catalysts with different Mo content were prepared by impregnation method. The effect of Mo content on the property of Mo/ZSM-5 catalysts and their performance for selective catalytic reduction(SCR) of NO with ammonia was investigated by XRD, ICP,XPS and NO-TPD respectively. The results showed that the catalytic activity of Mo/ZSM-5 for SCR of NO is strongly influenced by the Mo loading in HZSM-5 zeolites. The NOx conversion reached the highest value of 64.2% at 375℃ when Mo content is about 10.9%, and the temperatures at which the maximum of NOx conversion obtained were declined with the increase of Mo content. From XRD results, it can be seen that it exhibits the distinct interaction between Mo and HZSM-5 when Mo content is about 10.9%. This may result in a suitable phase structure in Mo/ZSM-5 catalyst, which is advantageous for NO reduction. XPS and NO-TPD results also showed that the catalytic activity of Mo/ZSM-5 may be related to the Mo percent on the surface。