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Synthesis of Mesoporous Cu-Mn-Al2O3 Materials and Their Applications to Preferential Catalytic Oxidation of CO in a Hydrogen-rich Stream
Fang De-ren1,2; Ren Wan-zhong1,2; Liu Zhong-min; Xu Xiu-feng1,2; Zhang Hui-min1,2; Liao Wei-ping1,2
关键词Cu-mn-al2o3 Mesoporous Material Selective Co Oxidation Hydrogen-rich Catalyst
刊名CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
2010
26期:1页:105-109
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]CARBON-MONOXIDE ; H-2-RICH GAS ; H-2 ; PT/GAMMA-AL2O3 ; KINETICS ; EXCESS
英文摘要A series of mesoporous Cu-Mn-Al2O3(CMA) materials was synthesized at moderate temperature and their structures were characterized by XRD. N-2 physical adsorption and TPR techniques. It was found that using metal complex ion[Cu(NH3)(4)(2+)-Mn(NH3)(6)(2+)] as raw materials is easier to form good-structure mesoporous Cu-Mn-Al2O3 materials than using its nitrate salt [Cu(NO3)(2)-Mn(NO3)(2)]. The TPR tests. results indicate that CuO and MnO. were homogeneously dispersed in the mesoporous materials. Their catalytic application to preferential catalytic oxidation of CO in a hydrogen-rich stream was studied. The activity varies in the order of CMA(1:1, molar ratio)> CMA(1:2)>CMA(2:1)>CMA(CP)>CMA(1:0)approximate to CMA(0:1). The CMA(1:0) and CMA(0:1) have lower activity compared to other samples, implying that there existed coordination effect between Cu-Mn in the samples. The selectivity varied in the order or CMA(0:1)>= CMA(1:2)>CMA(1:1)>CMA(2:1)>CMA(1:0) at higher temperature (>= 120 degrees C), indicating that increasing the Cu content enhanced the conversion of H-2. The sample CMA(CP) made by coprecipitation method has a lower CO oxidation activity and selectivity than its counter-parts of mesoporous Cu-Mn-Al2O3 materials[CMA(1:2)], this attributed to the lower surface area of the former and poor interaction of CuO with MnOx.
语种英语
WOS记录号WOS:000275045500021
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/141769
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Yantai Univ, Inst Appl Catalysis, Yantai 264005, Peoples R China
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GB/T 7714
Fang De-ren,Ren Wan-zhong,Liu Zhong-min,et al. Synthesis of Mesoporous Cu-Mn-Al2O3 Materials and Their Applications to Preferential Catalytic Oxidation of CO in a Hydrogen-rich Stream[J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2010,26(1):105-109.
APA Fang De-ren,Ren Wan-zhong,Liu Zhong-min,Xu Xiu-feng,Zhang Hui-min,&Liao Wei-ping.(2010).Synthesis of Mesoporous Cu-Mn-Al2O3 Materials and Their Applications to Preferential Catalytic Oxidation of CO in a Hydrogen-rich Stream.CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,26(1),105-109.
MLA Fang De-ren,et al."Synthesis of Mesoporous Cu-Mn-Al2O3 Materials and Their Applications to Preferential Catalytic Oxidation of CO in a Hydrogen-rich Stream".CHEMICAL RESEARCH IN CHINESE UNIVERSITIES 26.1(2010):105-109.
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