Preparation, characterization and catalytic activity of nanosized chromium oxide
文献类型：期刊论文
| 作者 | Deng, S; Li, HQ; Zhang, Y |
| 刊名 | CHINESE JOURNAL OF INORGANIC CHEMISTRY
 |
| 出版日期 | 2003-08-01 |
| 卷号 | 19期号:8页码:825-830 |
| 关键词 | nano Cr2O3 characterization FT-IR catalytic activity |
| ISSN号 | 1001-4861 |
| 其他题名 | Chin. J. Inorg. Chem. |
| 中文摘要 | 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. |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Inorganic & Nuclear |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | OXIDATIVE DEHYDROGENATION ; CARBON-DIOXIDE ; MAGNETIC-PROPERTIES ; CO2 ; ETHANE ; CR2O3 ; PERFORMANCE ; POWDERS ; ALKANES ; C2H4 |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000184464900006 |
| 公开日期 | 2013-11-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5339]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
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