| MnOx/TiO2-ZrO2催化剂的制备及低温催化还原NO的研究 |
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| 引用本文： | 张延东,李慧远,祝社民,张利民,王志良,沈树宝. MnOx/TiO2-ZrO2催化剂的制备及低温催化还原NO的研究[J]. 环境科学学报, 2009, 29(2): 339-343 |
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| 作者姓名： | 张延东 李慧远 祝社民 张利民 王志良 沈树宝 |
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| 作者单位： | 1. 南京工业大学材料科学与工程学院,材料化学工程国家重点实验室,南京,210009
2. 江苏省环境科学研究院,南京,210036 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，江苏省环境工程重点买验室开放课题 |
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| 摘 要： | 采用共沉淀法制备了TiO2-ZrO2复合氧化物,以其为载体采用等体积浸渍法制备了不同负载量的MnOx/Ti02-Zr02催化剂.低温下以NH3为还原剂考察了催化剂选择性催化还原(SCR)NO的活性.借助N2吸附、XRD、热重-差示扫描量热法(TG-DSC)对催化剂进行微观表征和分析.结果表明,负载量为5%时,生成的MnO2高度分散,NO的转化率较高;负载量为10%和15%时,出现MnO2晶相,NO的转化率有所下降.120-240℃、体积空速为10000 h-1的条件下,3种负载量的催化剂上NO转化率均大于90%.
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| 关 键 词： | TiO2-ZrO2复合氧化物 低温选择性催化还原 |
| 收稿时间： | 2008-04-02 |
| 修稿时间： | 2008-07-19 |
Preparation and catalytic performance of MnOx/TiO2-ZrO2 catalysts used for the selective catalytic reduction of NO at low temperature |
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| ZHANG Yandong,LI Huiyuan,ZHU Shemin,ZHANG Limin,WANG Zhiliang and SHEN Shubao. Preparation and catalytic performance of MnOx/TiO2-ZrO2 catalysts used for the selective catalytic reduction of NO at low temperature[J]. Acta Scientiae Circumstantiae, 2009, 29(2): 339-343 |
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| Authors: | ZHANG Yandong LI Huiyuan ZHU Shemin ZHANG Limin WANG Zhiliang SHEN Shubao |
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| Affiliation: | ZHANG Y,ong1,LI Huiyuan1,ZHU Shemin1,ZHANG Limin2,WANG Zhiliang2,SHEN Shubao11.State Key Laboratory of Materials-oriented Chemical Engineering,College of Material Science , Engineering,Nanjing University of Technology,Nanjing 2100092.Jiangsu Provincial Academy of Environmental Science,Nanjing 210036 |
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| Abstract: | A series of TiO2-ZrO2 supported manganese oxide catalysts were prepared by an incipient wet impregnation method for the low temperature Selective Catalytic Reduction (SCR) of NO with NH3 as a reductant. The TiO2-ZrO2 mixed oxide support was prepared by coprecipitation. Nitrogen adsorption, XRD and TG-DSC were conducted to probe the microscopic properties of the catalysts. The results showed that MnO2 existed in a well-dispersed state at 5%.Mn on TiO2-ZrO2, but when the Mn loading was 10% and 15%, MnO2 exist... |
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| Keywords: | NO MnO2 |
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