Cu、Ni元素对FeMnCeO_x-WO_3/TiO_2低温无毒催化剂活性及抗硫性的影响  

Effect of activity and SO_2 tolerance of Cu, Ni modified FeMnCeO_x-WO_3/TiO_2 poisonless catalysts for SCR of NO_x at low temperature

作　　者：汪楷迪 刘少光[2,3] 史文 刘沁昱[3] 姚佳 WANG Kaidi;LIU Shaoguang;SHI Wen;LIU Qinyu;YAO Jia(School of Materials Science and Engineering,Shanghai University,Shanghai 200444,China;School of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China;Shanghai Hanyu Environmental Protection Material Co.Ltd,Shanghai 201611,China;School of Materials Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海大学材料科学与工程学院,上海200444 [2]浙江大学材料科学与工程学院,杭州310027 [3]上海瀚昱环保材料有限公司,上海201611 [4]上海工程技术大学材料工程学院,上海201620

出　　处：《功能材料》2019年第4期4080-4085,4092,共7页Journal of Functional Materials

基　　金：上海张江国家自主创新示范区专项发展资金重点资助项目(201609-SJ-C1085-007)

摘　　要：采用预制前驱体的方法制备Cu、Ni元素改性的FeMnCeO_x-WO_3/TiO_2低温无毒SCR催化剂,研究Cu、Ni改性对催化剂脱硝效率与抗SO_2中毒能力的影响,通过XPS、NH_3-TPD、H_2-TPR等方法进行表征分析。结果表明,改性后的催化剂还原温度降低85℃,酸量增多,氧化还原能力增强;Ni可以提高低温脱硝活性,Cu可以提高催化剂的抗SO_2中毒能力。Cu,Ni modified non-toxic FeMnCeOx-WO3/TiO2 catalysts were prepared by pre-prepare precursor method for low temperature selective catalytic reduction(SCR)of NOx with NH 3.The influence of Cu,Ni modification on the DeNOxefficiency and SO2 resistance performance of catalysts in the selective catalytic reduction was investigated and the catalysts were characterized by XPS,NH 3-TPD and H 2-TPR.As a results,the reduction temperature of the modified catalyst was decreased by 85℃.The acidity and the redox ability of catalysts were increased.The low temperature SCR activity of catalyst was improved by the Ni modification.The SO2 resistance performance of catalyst was enhance by the Cu modification.

关 键 词：低温脱硝 无毒催化剂 SCR FeMnCeOx-WO3/TiO2 

分 类 号：O643.36[理学—物理化学]