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Preparation of CoOx/CeO2 Binary Oxides for NOx Storage and Reduction at Low Temperature
Alternative TitleChin. J. Inorg. Chem.
Liu Hai-Di; Wei Lian-Qi; Yue Ren-Liang; Chen Yun-Fa
2010-05-01
Source PublicationCHINESE JOURNAL OF INORGANIC CHEMISTRY
ISSN1001-4861
Volume26Issue:5Pages:749-756
AbstractThe preparation of NOx storage and reduction catalyst using porous silica bead and active carbon as the support was studied. The optimized molar ratio of Co to Ce was obtained. The low temperature nitrogen adsorp-desorption was employed to measure the surface area and pore volume of the samples. The crystal structure of the metal element in the catalyst was investigated by XRD analysis. The results indicate that the best NOx adsorption performance is achieved when the n(Co)/n(Co)=75/25. When porous silica sphere is utilized as the support, the NOx is mainly adsorbed by the binary oxide composed of CoOx and CeO2; however, when the active carbon is used as the support, it makes obvious contribution in NOx adsorption, as a result, the NOx adsorption capacity of the sample is greatly increased. An adsorption mechanism upon NOx is also proposed and the NH3 reduction behavior of the sample was investigated.; The preparation of NOx storage and reduction catalyst using porous silica bead and active carbon as the support was studied. The optimized molar ratio of Co to Ce was obtained. The low temperature nitrogen adsorp-desorption was employed to measure the surface area and pore volume of the samples. The crystal structure of the metal element in the catalyst was investigated by XRD analysis. The results indicate that the best NOx adsorption performance is achieved when the n(Co)/n(Co)=75/25. When porous silica sphere is utilized as the support, the NOx is mainly adsorbed by the binary oxide composed of CoOx and CeO2; however, when the active carbon is used as the support, it makes obvious contribution in NOx adsorption, as a result, the NOx adsorption capacity of the sample is greatly increased. An adsorption mechanism upon NOx is also proposed and the NH3 reduction behavior of the sample was investigated.
KeywordNox Ceo2 Coox Adsorption Reduction
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
URL查看原文
Indexed BySCI
Language英语
WOS KeywordCATALYSTS
WOS Research AreaChemistry
WOS SubjectChemistry, Inorganic & Nuclear
WOS IDWOS:000278131400003
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6447
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, State Key Lab Multi Phase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Liu Hai-Di,Wei Lian-Qi,Yue Ren-Liang,et al. Preparation of CoOx/CeO2 Binary Oxides for NOx Storage and Reduction at Low Temperature[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2010,26(5):749-756.
APA Liu Hai-Di,Wei Lian-Qi,Yue Ren-Liang,&Chen Yun-Fa.(2010).Preparation of CoOx/CeO2 Binary Oxides for NOx Storage and Reduction at Low Temperature.CHINESE JOURNAL OF INORGANIC CHEMISTRY,26(5),749-756.
MLA Liu Hai-Di,et al."Preparation of CoOx/CeO2 Binary Oxides for NOx Storage and Reduction at Low Temperature".CHINESE JOURNAL OF INORGANIC CHEMISTRY 26.5(2010):749-756.
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