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Water gas shift reaction over Cu-Mn mixed oxides catalysts: Effects of the third metal
Du, Xiaru1,2; Yuan, Zhongshan1; Cao, Lei1,2; Zhang, Chunxi1; Wang, Shudong1
关键词Water Gas Shift Reaction Cu-mn Spinel Zro2 Exposure To Oxygen Stability
刊名FUEL PROCESSING TECHNOLOGY
2008-02-01
DOI10.1016/j.fuproc.2007.07.002
89期:2页:131-138
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Energy & Fuels ; Engineering, Chemical
研究领域[WOS]Chemistry ; Energy & Fuels ; Engineering
关键词[WOS]COPPER-MANGANESE OXIDE ; FUEL-CELL APPLICATIONS ; REFORMED FUELS ; CUO-CEO2 CATALYSTS ; NITRATE COMBUSTION ; CO OXIDATION ; METHANOL ; HYDROGEN ; TEMPERATURE ; PERFORMANCE
英文摘要Highly efficient Cu-Mn spinel catalysts for water gas shift (WGS) reaction were achieved by a single step urea-nitrate combustion method. A series of doped Cu-Mn-M catalysts (M=Ce, Zr, Zn, Fe, Al) were prepared by the same method. Effects of dopants on WGS activity and stability of doped Cu-Mn catalysts were investigated. The doped catalysts were characterized by BET, XRD and TPR. XRD results showed that non-doped samples and Zr-doped samples are mainly composed of Cu1.5Mn1.5O4 phase, while CuO, CU2O and CU1.5Mn1.5O4 for other doped samples. It was further found that WGS activities depend strongly on the natures of the dopant employed despite of their lower content, varying in the order of Zr>Fe>non-doped>Ce>Al>Zn. TPR profiles revealed that all dopants shift the reduction peaks to lower temperature region, indicating no direct correlation between WGS activity and the reducibility. In addition, Zr-doped Cu-Mn catalyst with 5 wt.% content showed the best catalytic performance and, optimal stability exposed to oxygen-stream and on-stream operation. It indicates that ZrO2 is an effective promoter for Cu-Mn catalyst, and the-catalytic performances are related to the existence of a CU1.5Mn1.5O4 phase and ease reducibility of the catalysts. (c) 2007 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000253368000004
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140990
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.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714
Du, Xiaru,Yuan, Zhongshan,Cao, Lei,et al. Water gas shift reaction over Cu-Mn mixed oxides catalysts: Effects of the third metal[J]. FUEL PROCESSING TECHNOLOGY,2008,89(2):131-138.
APA Du, Xiaru,Yuan, Zhongshan,Cao, Lei,Zhang, Chunxi,&Wang, Shudong.(2008).Water gas shift reaction over Cu-Mn mixed oxides catalysts: Effects of the third metal.FUEL PROCESSING TECHNOLOGY,89(2),131-138.
MLA Du, Xiaru,et al."Water gas shift reaction over Cu-Mn mixed oxides catalysts: Effects of the third metal".FUEL PROCESSING TECHNOLOGY 89.2(2008):131-138.
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