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Preparation, characterization and catalytic activity of nanosized chromium oxide
Alternative TitleChin. J. Inorg. Chem.
Deng, S; Li, HQ; Zhang, Y
2003-08-01
Source PublicationCHINESE JOURNAL OF INORGANIC CHEMISTRY
ISSN1001-4861
Volume19Issue:8Pages:825-830
AbstractIn this paper, the nanosized Cr2O3 were prepared by Sol-Gel method coupling with azeotropic distillation method. The obtained nano-powders were characterized by BET, XRD, TEM, Fr-IR, XPS and H-2-TPR techniques. Fr-IR patterns revealed that the infrared absorption peaks of Cr-O bond in Cr2O3 nano-powders blue shift and the intensity of the absorption of Cr-O bond (651.8cm(-1)) increases. The mechanism of red shift and blue shift in nano-powders of oxides was discussed, and it was concluded that the crystal structure of nano-powders of oxides influences their infrared spectra. The catalytic performance of nano-Cr2O3 catalyst for oxidative dehydrogenation of ethane with CO2 was compared with that of normal Cr2O3 catalyst. The nano-Cr2O3 catalyst exhibits much higher ethane conversion and higher ethylene yield than those of normal Cr2O3 catalyst. At 973K, nano-Cr2O3 catalyst shows 77.1% ethane conversion and 58.98% ethylene yield for the oxidative dehydrogenation of ethane with carbon dioxide to ethylene.; In this paper, the nanosized Cr2O3 were prepared by Sol-Gel method coupling with azeotropic distillation method. The obtained nano-powders were characterized by BET, XRD, TEM, Fr-IR, XPS and H-2-TPR techniques. Fr-IR patterns revealed that the infrared absorption peaks of Cr-O bond in Cr2O3 nano-powders blue shift and the intensity of the absorption of Cr-O bond (651.8cm(-1)) increases. The mechanism of red shift and blue shift in nano-powders of oxides was discussed, and it was concluded that the crystal structure of nano-powders of oxides influences their infrared spectra. The catalytic performance of nano-Cr2O3 catalyst for oxidative dehydrogenation of ethane with CO2 was compared with that of normal Cr2O3 catalyst. The nano-Cr2O3 catalyst exhibits much higher ethane conversion and higher ethylene yield than those of normal Cr2O3 catalyst. At 973K, nano-Cr2O3 catalyst shows 77.1% ethane conversion and 58.98% ethylene yield for the oxidative dehydrogenation of ethane with carbon dioxide to ethylene.
KeywordNano Cr2o3 Characterization Ft-ir Catalytic Activity
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
URL查看原文
Indexed BySCI
Language英语
WOS KeywordOXIDATIVE DEHYDROGENATION ; CARBON-DIOXIDE ; MAGNETIC-PROPERTIES ; CO2 ; ETHANE ; CR2O3 ; PERFORMANCE ; POWDERS ; ALKANES ; C2H4
WOS Research AreaChemistry
WOS SubjectChemistry, Inorganic & Nuclear
WOS IDWOS:000184464900006
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5339
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Deng, S,Li, HQ,Zhang, Y. Preparation, characterization and catalytic activity of nanosized chromium oxide[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2003,19(8):825-830.
APA Deng, S,Li, HQ,&Zhang, Y.(2003).Preparation, characterization and catalytic activity of nanosized chromium oxide.CHINESE JOURNAL OF INORGANIC CHEMISTRY,19(8),825-830.
MLA Deng, S,et al."Preparation, characterization and catalytic activity of nanosized chromium oxide".CHINESE JOURNAL OF INORGANIC CHEMISTRY 19.8(2003):825-830.
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