制备方法对Co-MOR催化剂CH4选择还原NO性能的影响
采用离子交换法、浸渍法制备一系列的Co-MOR催化剂，并将其用于CH4选择性催化还原NOx（CH4-SCR）反应．运用X射线衍射（XRD）、X射线荧光光谱（XRF）、扫描电子显微镜（SEM）、紫外．拉曼（UV-Raman）光谱、X射线光电子能谱（XPS）、NO程序升温脱附（NO-TPD）等手段对催化剂进行了表征．结果表明，浸渍法制备的催化剂，C0以C03（）4形式存在：而离子交换法制备的催化剂，Co以离子形式进入丝光沸石（MOR）骨架之中，在催化剂上形成更多的Co2＋和[Co—O—Co]2＋，形成更均匀NO吸附中心和CH4-SCR反应活性中心．催化剂活性评价表明离子交换法制备的催化剂具有更宽的...
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| Published in | 物理化学学报 Vol. 29; no. 6; pp. 1289 - 1296 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
北京石油化工学院化学工程学院, 北京 102617%中国石油大学 北京理学院, 北京 102249
2013
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-6818 |
| DOI | 10.3866/PKU.WHXB201304162 |
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| Abstract | 采用离子交换法、浸渍法制备一系列的Co-MOR催化剂，并将其用于CH4选择性催化还原NOx（CH4-SCR）反应．运用X射线衍射（XRD）、X射线荧光光谱（XRF）、扫描电子显微镜（SEM）、紫外．拉曼（UV-Raman）光谱、X射线光电子能谱（XPS）、NO程序升温脱附（NO-TPD）等手段对催化剂进行了表征．结果表明，浸渍法制备的催化剂，C0以C03（）4形式存在：而离子交换法制备的催化剂，Co以离子形式进入丝光沸石（MOR）骨架之中，在催化剂上形成更多的Co2＋和[Co—O—Co]2＋，形成更均匀NO吸附中心和CH4-SCR反应活性中心．催化剂活性评价表明离子交换法制备的催化剂具有更宽的活性温度区间，Co（0．30）-MOR催化剂在327—450。C温度范围内NO转化率大于50％． |
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| AbstractList | 采用离子交换法、浸渍法制备一系列的Co-MOR催化剂，并将其用于CH4选择性催化还原NOx（CH4-SCR）反应．运用X射线衍射（XRD）、X射线荧光光谱（XRF）、扫描电子显微镜（SEM）、紫外．拉曼（UV-Raman）光谱、X射线光电子能谱（XPS）、NO程序升温脱附（NO-TPD）等手段对催化剂进行了表征．结果表明，浸渍法制备的催化剂，C0以C03（）4形式存在：而离子交换法制备的催化剂，Co以离子形式进入丝光沸石（MOR）骨架之中，在催化剂上形成更多的Co2＋和[Co—O—Co]2＋，形成更均匀NO吸附中心和CH4-SCR反应活性中心．催化剂活性评价表明离子交换法制备的催化剂具有更宽的活性温度区间，Co（0．30）-MOR催化剂在327—450。C温度范围内NO转化率大于50％． O643; 采用离子交换法、浸渍法制备一系列的 Co-MOR 催化剂,并将其用于 CH4选择性催化还原 NOx (CH4-SCR)反应.运用 X 射线衍射(XRD)、X 射线荧光光谱(XRF)、扫描电子显微镜(SEM)、紫外-拉曼(UV-Raman)光谱、X射线光电子能谱(XPS)、NO程序升温脱附(NO-TPD)等手段对催化剂进行了表征.结果表明,浸渍法制备的催化剂, Co 以 Co3O4形式存在;而离子交换法制备的催化剂, Co 以离子形式进入丝光沸石(MOR)骨架之中,在催化剂上形成更多的 Co2+和[Co-O-Co]2+,形成更均匀 NO 吸附中心和 CH4-SCR 反应活性中心.催化剂活性评价表明离子交换法制备的催化剂具有更宽的活性温度区间, Co(0.30)-MOR 催化剂在327-450°C温度范围内NO转化率大于50%. |
| Author | 李滨 王虹 丁福臣 李翠清 宋永吉 柯明 任翠涛 |
| AuthorAffiliation | 北京石油化工学院化学工程学院,北京102617 中国石油大学北京理学院,北京102249 |
| AuthorAffiliation_xml | – name: 北京石油化工学院化学工程学院, 北京 102617%中国石油大学 北京理学院, 北京 102249 |
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| ClassificationCodes | O643 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.3866/PKU.WHXB201304162 |
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| DocumentTitleAlternate | Effects of Preparation Methods on the Catalytic Performance of Selective Catalytic Reduction of NO with CH, over Co-MOR Catalysts |
| DocumentTitle_FL | Effects of Preparation Methods on the Catalytic Performance of Selective Catalytic Reduction of NO with CH4 over Co-MOR Catalysts |
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| Keywords | NO 离子交换 丝光沸石 Mordenite Ion-exchange Co CH4 |
| Language | Chinese |
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| Notes | 11-1892/06 LI Bin WANG Hong DING Fu-Chen LI Cui-Qing SONG Yong-Ji KE Ming REN Cui-Tao （Department of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, P. R. China ~College of Science, China University of Petroleum, Beijing 102249, P. R. China） Co; Mordenite; Ion-exchange; CH4; NO A series of Co-mordenite （MOR） catalysts prepared by ion-exchange or impregnation methods were used in the selective catalytic reaction of NO with methane （CH4-SCR）. The structure and physicochemical properties of the catalysts were examined by X-ray diffraction （XRD）, X-ray fluorescence （XRF）, scanning electron microscopy （SEM）, UV-Raman spectroscopy, X-ray photoelectron spectroscopy （XPS）, and temperature-programmed desorption of NO （NO-TPD）. The Co species in the catalyst prepared by impregnation is present as Co3O4, whereas in the catalyst prepared by an ion-exchange method, the Co species enter in the mordenite skeleton with the ion form, and the more Co2＋ and [Co-O-Co]2＋ formed in the catalysts, |
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| PublicationDate | 2013 |
| PublicationDateYYYYMMDD | 2013-01-01 |
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| PublicationTitle | 物理化学学报 |
| PublicationTitleAlternate | Acta Physico-Chimica Sinica |
| PublicationTitle_FL | Acta Physico-Chimica Sinica |
| PublicationYear | 2013 |
| Publisher | 北京石油化工学院化学工程学院, 北京 102617%中国石油大学 北京理学院, 北京 102249 |
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| Snippet | ... O643; 采用离子交换法、浸渍法制备一系列的 Co-MOR 催化剂,并将其用于 CH4选择性催化还原 NOx (CH4-SCR)反应.运用 X 射线衍射(XRD)、X... |
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| StartPage | 1289 |
| SubjectTerms | CH Co NO 丝光沸石 离子交换 |
| Title | 制备方法对Co-MOR催化剂CH4选择还原NO性能的影响 |
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