Structure, Catalytic Oxidation Performance, and Sulfur Resistance of Mn-Based Catalysts Supported on Modified Mesoporous Al2O3
Zou, ZQ; Meng, M; Yu, YF; Xie, YN; Hu, TD; Zhang, J; Xie YN(谢亚宁); Hu TD(胡天斗); Zhang J(张静)
刊名CHINESE JOURNAL OF CATALYSIS
2010
卷号31期号:1页码:#REF!
关键词manganese oxide alumina modification carbon monoxide oxidation propane oxidation fine structure
学科分类Chemistry; Engineering
DOI10.3724/SP.J.1088.2010.90705
其他题名改性介孔 Al2O3 负载锰基催化剂的结构及其催化氧化与抗硫性能
通讯作者Zou, ZQ (reprint author), Tianjin Univ, Tianjin Key Lab Appl Catalysis Sci & Technol, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China.
文章类型Article
英文摘要The manganese oxide catalysts supported on mesoporous Al2O3 modified by LaCeZr or YCeZr were prepared by successive impregnation. The structure of the catalysts was characterized by X-ray diffraction, N-2 adsorption-desorption, X-ray absorption fine structure, X-ray photoelectron spectroscopy, and temperature-programmed reduction by H-2. The state of manganese species and their reducibility were investigated and correlated with the CO and C3H8 oxidation performance of the catalysts. The results demonstrate that the manganese species mainly exist as Mn3O4 crystallites, which interact with the support Al2O3. The different interaction strength determines the reducibility and catalytic properties of the catalysts. The promoters LaCeZr or YCeZr effectively inhibit the interaction between Mn and Al oxides, increasing the mobility of Mn-O bond and the catalytic activity of the corresponding catalysts. Compared with YCeZr, the promoter LaCeZr improves the reducibility of MnOx to a larger extent, enhancing the activity more obviously. The catalysts modified by LaCeZr calcined at 650 degrees C exhibits high oxidation performance and sulfur resistance. In the presence of 0.035% SO2 in the feed, the CO oxidation activity of the catalyst can be well maintained, and the C3H8 oxidation activity decreases only a little.
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
收录类别SCI
WOS记录号WOS:000274753100019
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226186
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
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Zou, ZQ,Meng, M,Yu, YF,et al. Structure, Catalytic Oxidation Performance, and Sulfur Resistance of Mn-Based Catalysts Supported on Modified Mesoporous Al2O3[J]. CHINESE JOURNAL OF CATALYSIS,2010,31(1):#REF!.
APA Zou, ZQ.,Meng, M.,Yu, YF.,Xie, YN.,Hu, TD.,...&张静.(2010).Structure, Catalytic Oxidation Performance, and Sulfur Resistance of Mn-Based Catalysts Supported on Modified Mesoporous Al2O3.CHINESE JOURNAL OF CATALYSIS,31(1),#REF!.
MLA Zou, ZQ,et al."Structure, Catalytic Oxidation Performance, and Sulfur Resistance of Mn-Based Catalysts Supported on Modified Mesoporous Al2O3".CHINESE JOURNAL OF CATALYSIS 31.1(2010):#REF!.
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