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Birdnest-like CuCeZr Mixed Oxides: Synthesis and Excellent Catalysts for Diesel Exhaust Oxidation
Zhao, Han1,2; Zhou, Xiao-Xia1; Pan, Lin-Yu1,2; Chen, Hang-Rong1
2017
Source PublicationWuji Cailiao Xuebao/Journal of Inorganic Materials
ISSN1000324X
Volume32Issue:9Pages:923-930
AbstractA series of ternary composite oxides CuCeZrOxcalcined at different temperatures were prepared by a homogeneous precipitation method using urea as the precipitant. X-ray diffraction (XRD), N2adsorption-desorption analysis, X-ray photoelectron spectroscopy (XPS), scanning transmission electron microscope (STEM), and temperature-programmed reduction (or desorption, oxidation) (TPR, TPD or TPO) measurements were utilized to investigate the influence of calcination temperatures on the physicochemical property and catalysis performance towards soot catalytic oxidation. The CCZ-350 (calcined at 350) sample exhibits the optimized catalysis performance: temperature at the maximum rate of soot oxidation (T50)=407, under test conditions of space velocity=12000 mL/(gcatalyst·h), c(O2)=10vol%, c(NO)=500×10-6, and mass ratio of (loosely contacted) catalyst/soot=10/1. It is believed that theabundant high-reactive adsorbed oxygen species on CCZ-350 surface contribute much to its outstanding catalysis performance. Besides, CCZ-350 with a loose-packing and porous morphology favors its sufficient contact with soot, thus further benefiting the catatlytic activity towards soot combustion. More importantly, CCZ-350 also presents good water vapor and SO2resistence performance as well as good capability of eliminating other pollutants in diesel exhaust at low temperatures (150-400), such as CO, C3H6and C3H8. © 2017, Science Press. All right reserved.
DOI10.15541/jim20160662
EI Accession Number20174804459975
EI KeywordsCatalytic oxidation
EI Classification Number451.1 Air Pollution Sources - 453 Water Pollution - 802.2 Chemical Reactions - 802.3 Chemical Operations - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.1 Organic Compounds
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25779
Collection中国科学院上海硅酸盐研究所
Affiliation1.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
Recommended Citation
GB/T 7714
Zhao, Han,Zhou, Xiao-Xia,Pan, Lin-Yu,et al. Birdnest-like CuCeZr Mixed Oxides: Synthesis and Excellent Catalysts for Diesel Exhaust Oxidation[J]. Wuji Cailiao Xuebao/Journal of Inorganic Materials,2017,32(9):923-930.
APA Zhao, Han,Zhou, Xiao-Xia,Pan, Lin-Yu,&Chen, Hang-Rong.(2017).Birdnest-like CuCeZr Mixed Oxides: Synthesis and Excellent Catalysts for Diesel Exhaust Oxidation.Wuji Cailiao Xuebao/Journal of Inorganic Materials,32(9),923-930.
MLA Zhao, Han,et al."Birdnest-like CuCeZr Mixed Oxides: Synthesis and Excellent Catalysts for Diesel Exhaust Oxidation".Wuji Cailiao Xuebao/Journal of Inorganic Materials 32.9(2017):923-930.
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