个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:中国科学院兰州化学物理研究所
学位:博士
所在单位:环境学院
办公地点:环境楼 B415
联系方式:Tel: 0411-84706658
电子邮箱:xyli@dlut.edu.cn
Copper-ion exchanged Ti-pillared clays for selective catalytic reduction of NO by propylene
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论文类型:期刊论文
发表时间:2011-04-15
发表刊物:CHEMICAL ENGINEERING JOURNAL
收录刊物:SCIE、EI
卷号:168
期号:3
页面范围:1128-1133
ISSN号:1385-8947
关键字:Cu; Ti-PILC; Ion-exchange; SCR; TPR
摘要:Cu-ion-exchanged titanium-pillared clays (Cu-Ti-PILCs) were prepared using ion exchange strategy under different pH values and used for selective catalytic reduction (SCR) of NO by propylene. The influences of pH value on the catalytic performance and the nature of copper species were investigated. The results of activity test showed that the highest conversion of NO into N(2) and the low-temperature activity increased with the increase of pH value up to 6, and then decreased with the further increase of pH value. The characterization results showed that the copper species were well dispersed over the prepared catalysts, and the different ratios of Cu(2+)/copper species existed over the studied catalysts. The Cu(2+) species can enhance the low-temperature activity and the highest conversion of NO into N(2). Moreover, the highest conversion of NO into N(2) and low-temperature activity increased with the increase of the Cu(2+)/copper species rate. (C) 2011 Elsevier BM. All rights reserved.