IMECH-IR  > 高温气体动力学国家重点实验室
Influence of Ce/Zr Ratio on the Synergistic Effect over CuCe1-xZrxOy/ZSM-5 Catalysts for the Self-Sustained Combustion of Carbon Monoxide
Zhao RZ; Hao QL; Bin F(宾峰); Kang RN; Dou BJ; Bin, F (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing, Peoples R China.; Dou, BJ (reprint author), Tianjin Univ Sci & Technol, Coll Marine & Environm Sci, Tianjin, Peoples R China.
Source PublicationCOMBUSTION SCIENCE AND TECHNOLOGY
2017
Volume189Issue:8Pages:1394-1415
ISSN0010-2202
AbstractThe self-sustained combustion of CO was studied over a series of CuCe1-xZrxOy/ZSM-5 catalysts with different Ce/Zr molar ratios to evaluate the correlation of their structural characteristics with catalytic performance. The obtained results demonstrated that the activity of the cerium-containing catalysts was much higher than that of the CuZr1/Z with the activity of CO combustion following the order: CuZr1/Z < CuCe0.25Zr0.75/Z < CuCe0.5Zr0.5/Z < CuCe1/Z < CuCe0.75 Zr(0.25)Z. After cerium addition the cerium-zirconium mixed oxides formed promoted the copper species well dispersed on the catalyst surface. The high activities of cerium-containing catalysts were closely related to the synergetic effects among the copper cerium and zirconium species as the surface copper species provided sites for CO adsorption and the cerium-zirconium mixed oxides promote the activation of oxygen. The activities were probably also attributed to some copper species present as substitutional defects in the ceria lattice which were more reducible than the copper clusters mini-crystals and bulk CuO particles. The CuCe0.75Zr0.25/Z possessed excellent redox capacity adsorption/activation properties for O and CO species and therefore induced a self-sustained combustion of CO at the lowest temperature than that of other CuCe1-xZrxOy/ZSM-5 catalysts.
KeywordCarbon Monoxide Ce/zr Ratio Cuce1-xzrxoy/zsm-5 Catalysts Self-sustained Combustion
DOI10.1080/00102202.2017.1297807
Indexed BySCI ; EI
Language英语
WOS IDWOS:000399359500007
WOS KeywordRAY PHOTOELECTRON-SPECTROSCOPY ; SURFACE-REACTION MECHANISM ; TEMPERATURE CO OXIDATION ; PREFERENTIAL OXIDATION ; OXIDE CATALYSTS ; SOLID-SOLUTIONS ; CERIA ; ZR ; CEXZR1-XO2 ; H-2
WOS Research AreaThermodynamics ; Energy & Fuels ; Engineering
WOS SubjectThermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical
Funding OrganizationNational Key Research and Development Program of China(2016YFB0601402)
DepartmentLHD高效洁净燃烧(CPCR)
Classification二类
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60555
Collection高温气体动力学国家重点实验室
Corresponding AuthorBin, F (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing, Peoples R China.; Dou, BJ (reprint author), Tianjin Univ Sci & Technol, Coll Marine & Environm Sci, Tianjin, Peoples R China.
Recommended Citation
GB/T 7714
Zhao RZ,Hao QL,Bin F,et al. Influence of Ce/Zr Ratio on the Synergistic Effect over CuCe1-xZrxOy/ZSM-5 Catalysts for the Self-Sustained Combustion of Carbon Monoxide[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2017,189(8):1394-1415.
APA Zhao RZ.,Hao QL.,宾峰.,Kang RN.,Dou BJ.,...&Dou, BJ .(2017).Influence of Ce/Zr Ratio on the Synergistic Effect over CuCe1-xZrxOy/ZSM-5 Catalysts for the Self-Sustained Combustion of Carbon Monoxide.COMBUSTION SCIENCE AND TECHNOLOGY,189(8),1394-1415.
MLA Zhao RZ,et al."Influence of Ce/Zr Ratio on the Synergistic Effect over CuCe1-xZrxOy/ZSM-5 Catalysts for the Self-Sustained Combustion of Carbon Monoxide".COMBUSTION SCIENCE AND TECHNOLOGY 189.8(2017):1394-1415.
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