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On the catalytic nature of Mn/sulfated zirconia for selective reduction of NO with methane
Li, N; Wang, AQ; Liu, ZM; Wang, XD; Zheng, MY; Huang, YQ; Zhang, T; Zhang T(张涛); Zhang T(张涛)
关键词No Reduction Methane Mn Sulfated Zirconia
刊名APPLIED CATALYSIS B-ENVIRONMENTAL
2006-02-22
DOI10.1016/j.apcatb.2005.08.007
62期:3-4页:292-298
收录类别SCI
文章类型Article
部门归属15
项目归属1501
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]OXIDE SOLID-SOLUTIONS ; EXCESS O-2 ; SULFATED ZIRCONIA ; NITRIC-OXIDE ; FT-IR ; CO/SULFATED ZIRCONIA ; ALUMINA CATALYSTS ; ENHANCED ACTIVITY ; SURFACE-ACIDITY ; WATER-VAPOR
英文摘要In this work, the catalytic nature of Mn loaded sulfated zirconia (SZ) catalysts for the selective catalytic reduction (SCR) of NO with methane was investigated by a combination of reactions and characterizations such as FIF-IR spectroscopy, H-2-TPR, UV-vis diffuse reflectance spectroscopy (DRS) and NO-TPD. It was found from the results of reactions and FF-IR spectra that the strong Bronsted and Lewis acid sites in the Mn/SZ catalysts were essential for the SCR of NO with methane. The loading of Mn increased the number of strong Lewis acid sites on the surface of SZ catalyst, which is one reason for its promoting effect. On the other hand, FF-IR spectra, H-2-TPR and UV-vis DRS of the catalysts demonstrated that the presence of the SO42- species occupied the terminal OH sites on the surface of ZrO2 support and thereby restrained the formation of more oxidative and nonstoichiometrically dispersed MnOx (1.5 < x < 2) phase. Such an effect Of SO42- suppressed the combustion reaction of CH4 by O-2 and increased the selectivity towards NO reduction. The NO-TPD showed that the loading of Mn increased the adsorption of NO over SZ catalyst, which is another reason for the promoting effect of Mn. (c) 2005 Elsevier B.V. All rights reserved.
语种英语
原文出处查看原文
WOS记录号WOS:000235265600013
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/97449
专题中国科学院大连化学物理研究所
通讯作者Zhang T(张涛); Zhang T(张涛)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Li, N,Wang, AQ,Liu, ZM,et al. On the catalytic nature of Mn/sulfated zirconia for selective reduction of NO with methane[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2006,62(3-4):292-298.
APA Li, N.,Wang, AQ.,Liu, ZM.,Wang, XD.,Zheng, MY.,...&张涛.(2006).On the catalytic nature of Mn/sulfated zirconia for selective reduction of NO with methane.APPLIED CATALYSIS B-ENVIRONMENTAL,62(3-4),292-298.
MLA Li, N,et al."On the catalytic nature of Mn/sulfated zirconia for selective reduction of NO with methane".APPLIED CATALYSIS B-ENVIRONMENTAL 62.3-4(2006):292-298.
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