CO hydrogenation to light alkenes over Mn/Fe catalysts prepared by coprecipitation and sol-gel methods
文献类型：期刊论文
| 作者 | Wang, C; Wang, QX; Sun, XD; Xu, LY |
| 刊名 | catalysis letters
 |
| 出版日期 | 2005-11-01 |
| 卷号 | 105期号:1-2页码:93-101 |
| 关键词 | CO hydrogenation light alkenes manganese oxide iron catalysts |
| 产权排序 | 1;1 |
| 通讯作者 | 徐龙伢 |
| 英文摘要 | co hydrogenation to light alkenes was carried out on manganese promoted iron catalysts prepared by coprecipitation and sol-gel techniques. addition of manganese in the range of 1-4 mol.% by means of coprecipitation could improve notably the percentage of c-2 (=) similar to c-4 (=) in the products, but it was not so efficient when the sol-gel method was employed. xrd and h-2-tpr measurements showed that the catalyst samples giving high c-2 (=) similar to c-4 (=) yields possessed ultra. ne particles in the form of pure alpha-(fe1-xmnx)(2)o-3, and high quality in lowering the reduction temperature of the iron oxide. furthermore, these samples displayed deep extent of carburization and different surface procedures to the others in the tests of temperature programmed surface carburization (tpsc). the different surface procedures of these samples were considered to have close relationship with the evolving of surface oxygen. it was also suggested that for the catalysts with high c-2 (=) similar to c-4 (=) yields, the turnover rate of the active site could be kept at a relatively high level due to the improved reducing and carburizing capabilities. consequently, there would be a large number of sites for co adsorption/dissociation and an enhanced carburization environment on the catalyst surface, so that the process of hydrogenation could be suppressed relatively to a low level. as a result, the percentage of the light alkenes in the products could be raised. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | fischer-tropsch synthesis ; manganese oxide catalysts ; x-ray-diffraction ; carbon-monoxide ; iron catalysts ; olefin selectivity ; reduction ; behavior ; syngas ; spectroscopy |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000232697100015 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/93157]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, C,Wang, QX,Sun, XD,et al. CO hydrogenation to light alkenes over Mn/Fe catalysts prepared by coprecipitation and sol-gel methods[J]. catalysis letters,2005,105(1-2):93-101. |
| APA | Wang, C,Wang, QX,Sun, XD,&Xu, LY.(2005).CO hydrogenation to light alkenes over Mn/Fe catalysts prepared by coprecipitation and sol-gel methods.catalysis letters,105(1-2),93-101. |
| MLA | Wang, C,et al."CO hydrogenation to light alkenes over Mn/Fe catalysts prepared by coprecipitation and sol-gel methods".catalysis letters 105.1-2(2005):93-101. |
入库方式： OAI收割
来源：大连化学物理研究所
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