| MnO2-CeO2/Ti0.25Zr0.25Al0.5O1.75整体式催化剂的低温NH3选择性催化还原NO性能研究 |
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| 引用本文： | 张秋林,林 涛,李 伟,徐海迪,龚茂初,陈耀强.MnO2-CeO2/Ti0.25Zr0.25Al0.5O1.75整体式催化剂的低温NH3选择性催化还原NO性能研究[J].无机化学学报,2009,25(3):485-490. |
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| 作者姓名： | 张秋林 林 涛 李 伟 徐海迪 龚茂初 陈耀强 |
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| 作者单位： | 四川大学绿色化学与技术教育部重点实验室,成都,610064 |
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| 基金项目： | 国家自然科学基金重点项目，国家自然科学基金 |
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| 摘 要： | 采用共沉淀法制备了TiO2、Ti0.5Zr0.5O2(TZ)和Ti0.25Zr0.25Al0.5O1.75载体材料,并以MnO2和CeO2为活性组分,以T、TZ和TZA为载体,制备了3种整体式催化剂.对催化剂进行了低温N2吸附脱附、储氧量(OSC)、NH3-TPD和XPS的表征,并研究了3种催化剂在过量O2存在下的低温NH3-选择催化还原(NH3-SCR)活性及其抗H2O和SO2性能.结果指出,MnO2-CeO2/Ti0.25Zr0.25Al0.5O1.75(TZAC)有最大的比表面积、孔容和储氧能力、最强的表面酸性和最大的表面酸量.而这对选择催化还原(SCR)反应至关重要.活性测试结果指出,TZAC有最好的低温SCR活性和最宽的活性温度窗口.NO在102℃起燃(转化率为50%),在175～325℃之间NO转化率接近100%,而且TZAC表现出了较强的抗H2O和SO2性能.
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| 关 键 词： | 低温选择性催化还原(SCR) 氮氧化物 催化 整体式催化剂 |
Catalytic Performance of MnO2-CeO2/Ti0.25Zr0.25Al0.5O1.75 Monolith Catalyst for Low Temperature Selective Catalytic Reduction of NO with NH3 |
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| ZHANG Qiu-Lin,LIN Tao,LI Wei,XU Hai-Di,GONG Mao-Chu and CHEN Yao-Qiang.Catalytic Performance of MnO2-CeO2/Ti0.25Zr0.25Al0.5O1.75 Monolith Catalyst for Low Temperature Selective Catalytic Reduction of NO with NH3[J].Chinese Journal of Inorganic Chemistry,2009,25(3):485-490. |
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| Authors: | ZHANG Qiu-Lin LIN Tao LI Wei XU Hai-Di GONG Mao-Chu and CHEN Yao-Qiang |
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| Institution: | The Key Laboratory of Green Chemistry & Technology of Ministry of Education, Sichuan University, Chengdu 610064,The Key Laboratory of Green Chemistry & Technology of Ministry of Education, Sichuan University, Chengdu 610064,The Key Laboratory of Green Chemistry & Technology of Ministry of Education, Sichuan University, Chengdu 610064,The Key Laboratory of Green Chemistry & Technology of Ministry of Education, Sichuan University, Chengdu 610064,The Key Laboratory of Green Chemistry & Technology of Ministry of Education, Sichuan University, Chengdu 610064 and The Key Laboratory of Green Chemistry & Technology of Ministry of Education, Sichuan University, Chengdu 610064 |
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| Abstract: | |
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| Keywords: | Low temperature selective catalytic reduction(SCR) nitrogen oxide catalysis Monolith catalyst |
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