Hydrotalcite-Derived MnxMg3-xAlO Catalysts Used for Soot Combustion, NOx Storage and Simultaneous Soot-NOx Removal
文献类型：期刊论文
| 作者 | Li, QA; Meng, M ; Xian, H; Tsubaki, N; Li, XG; Xie, YN; Hu, TD; Zhang, J; Xie YN(谢亚宁); Hu TD(胡天斗)
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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| 出版日期 | 2010 |
| 卷号 | 44期号:12页码:4747-4752 |
| 通讯作者 | [Li, Qian ; Meng, Ming ; Xian, Hui ; Li, Xingang] Tianjin Univ, Tianjin Key Lab Appl Catalysis Sci & Engn, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China ; [Tsubaki, Noritatsu] Toyama Univ, Sch Engn, Dept Appl Chem, Toyama 9308555, Japan ; [Xie, Yaning ; Hu, Tiandou ; Zhang, Jing] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 英文摘要 | The hydrotalcite-based MnxMg3AlO catalysts with different Mn: Mg atomic ratios were synthesized by coprecipitation, and employed for soot combustion, NOx storage and simultaneous soot-NOx removal. It is shown that with the increase of Mn content in the hydrotalcite-based MnxMg3-xAlO catalysts the major Mn-related species vary from MnAl2O4 and Mg2MnO4 to Mn3O4 and Mn2O3. The catalyst Mn1.5Mg1.5AlO displays the highest soot combustion activity with the temperature for maximal soot combustion rate decreased by 210 degrees C, as compared with the Mn-free catalyst The highly reducible Mn4+ ions in Mg2MnO4 are identified as the most active species for soot combustion. For NOx storage, introduction of Mn greatly influences bulk NOx storage, with the adsorbed NOx species varying from linear nitrites to ionic and chelating bidentate nitrates gradually. The coexistence of highly oxidative Mn4+ and highly reductive Mn2+ in Mn1.0Mg2.0AlO is favorable to the simultaneous soot-NOx removal, giving a NOx reduction percentage of 24%. In situ DRIFTS reveals that the ionic nitrate species are more reactive with soot than nitrites and chelating bidentate nitrates, showing higher NOx reduction efficiency. |
| 学科主题 | Engineering; Environmental Sciences & Ecology |
| 类目[WOS] | Engineering, Environmental ; Environmental Sciences |
| 研究领域[WOS] | Engineering ; Environmental Sciences & Ecology |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000278617000060 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/239996]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_实验物理中心 中国科学院高能物理研究所_中国散裂中子源 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Li, QA,Meng, M,Xian, H,et al. Hydrotalcite-Derived MnxMg3-xAlO Catalysts Used for Soot Combustion, NOx Storage and Simultaneous Soot-NOx Removal[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2010,44(12):4747-4752. |
| APA | Li, QA.,Meng, M.,Xian, H.,Tsubaki, N.,Li, XG.,...&张静.(2010).Hydrotalcite-Derived MnxMg3-xAlO Catalysts Used for Soot Combustion, NOx Storage and Simultaneous Soot-NOx Removal.ENVIRONMENTAL SCIENCE & TECHNOLOGY,44(12),4747-4752. |
| MLA | Li, QA,et al."Hydrotalcite-Derived MnxMg3-xAlO Catalysts Used for Soot Combustion, NOx Storage and Simultaneous Soot-NOx Removal".ENVIRONMENTAL SCIENCE & TECHNOLOGY 44.12(2010):4747-4752. |
入库方式： OAI收割
来源：高能物理研究所
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