| 低温等离子体处理对NiO/A12O3吸附NOx的促进作用 |
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| 引用本文： | 李秋荣,武金宝,郝吉明.低温等离子体处理对NiO/A12O3吸附NOx的促进作用[J].催化学报,2011,32(4):572-581. |
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| 作者姓名： | 李秋荣 武金宝 郝吉明 |
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| 作者单位： | 燕山大学环境与化学工程学院;清华大学环境科学与工程系; |
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| 基金项目： | 国家自然科学基金(51078203); 国家高技术研究发展计划(863计划,2010AA065002); 河北省教育厅科学研究项目(2009481)~~ |
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| 摘 要： | 采用共沉淀法制备了不同NiO负载量的NiO/A12O3催化剂,并用于NOx储存还原技术去除NOx反应中.结果表明,当Ni/Al摩尔比为0.3时,NiO/A12O3样品的NOx吸附量最大;随着Ni含量的增加,NiAl2O4晶相减少.沉淀物在高温煅烧前利用低温等离子体处理后,所得催化剂吸附NOx的能力明显增强,当Ni/Al...
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| 关 键 词： | 氧化镍 氧化铝 氮氧化物 低温等离子体 吸附 储存量 稀燃发动机 |
NO_x Storage Capacity Enhancement on NiO/Al_2O_3 Pretreated with a Non-thermal Plasma |
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| LI Qiurong,WU Jinbao,HAO Jiming.NO_x Storage Capacity Enhancement on NiO/Al_2O_3 Pretreated with a Non-thermal Plasma[J].Chinese Journal of Catalysis,2011,32(4):572-581. |
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| Authors: | LI Qiurong WU Jinbao HAO Jiming |
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| Institution: | LI Qiurong1,2,WU Jinbao1,HAO Jiming2 1College of Environmental and Chemical Engineering,Yanshan University,Qinhuangdao 066004,China 2Department of Environmental Science and Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | In the NOx storage reduction (NSR) technology used to remove NOx from lean burn engines,the NOx storage material is crucial.For NiO/Al2O3 catalysts with different NiO loading prepared by coprecipitation,the maximum storage capacity for NOx occurred at a Ni/Al molar ratio of 0.3 in the catalyst.The intensity of the NiAl2O4 diffraction peak decreased with increased nickel content.When the catalysts were pretreated by a non-thermal plasma (NTP) before calcination at high temperature,the adsorption capacities f... |
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| Keywords: | nickel oxide aluminum oxide nitric oxides non-thermal plasma adsorption storage capacity lean burn engine |
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