Effect of aluminum on the nature of the iron species in Fe-SBA-15
文献类型：期刊论文
| 作者 | Li, Ying; Feng, Zhaochi; Xin, Hongchuan; Fan, Fengtao; Zhang, Jing; Magusin, Pieter C. M. M.; Hensen, Emiel J. M.; van Santen, Rutger A.; Yang, Qihua; Li, Can |
| 刊名 | journal of physical chemistry b
 |
| 出版日期 | 2006-12-28 |
| 卷号 | 110期号:51页码:26114-26121 |
| 产权排序 | 1;1 |
| 通讯作者 | 李灿 |
| 英文摘要 | we report the preparation of highly ordered mesoporous fe-al-sba-15 with isolated extraframework fe species under acidic conditions. the materials were characterized by means of uv resonance raman spectroscopy, in conjunction with bet, xrd, tem, uv-vis, h-2-tpr, ft-ir, and al-27 mas nmr spectroscopy. the addition of both fe and al to the synthesis gel of sba-15 results in the formation of isolated extraframework fe species located close to the framework al ions and the fe content an order of magnitude higher than that in fe-sba-15 synthesized without al. the existence of anchored extraframework fe species was confirmed by the presence of a strong absorption band at 270 nm, hydrogen reduction at relatively low temperature, and the presence of a resonance raman band at 1140 cm(-1). the location of fe in close proximity to framework al nuclei is further supported by al-27 mas nmr measurements. two characteristic uv raman bands at 510 cm(-1) and 1090 cm(-1) excited by 244-nm laser are assigned to fe-o-si symmetric and asymmetric stretching modes of isolated tetrahedral fe ions in the silica framework for fe-sba-15. the resonance raman band at 1140 cm(-1) excited by 325-nm laser is attributed to the asymmetric stretching mode of the isolated extraframework iron species in fe-al-sba-15. the isolated fe species close to framework al species are stable in acidic hcl solution, whereas the majority of fe species in fe-sba-15 can be easily removed. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | resonance raman-spectroscopy ; high-temperature treatment ; chemical-vapor-deposition ; direct n2o decomposition ; state ion-exchange ; nitrous-oxide ; selective oxidation ; mesoporous silica ; extraframework iron ; fe-silicalite |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000242974300083 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/98357]  |
| 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 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Eindhoven Univ Technol, Schuit Inst Catalysis, NL-5600 MB Eindhoven, Netherlands |
| 推荐引用方式 GB/T 7714 | Li, Ying,Feng, Zhaochi,Xin, Hongchuan,et al. Effect of aluminum on the nature of the iron species in Fe-SBA-15[J]. journal of physical chemistry b,2006,110(51):26114-26121. |
| APA | Li, Ying.,Feng, Zhaochi.,Xin, Hongchuan.,Fan, Fengtao.,Zhang, Jing.,...&Li, Can.(2006).Effect of aluminum on the nature of the iron species in Fe-SBA-15.journal of physical chemistry b,110(51),26114-26121. |
| MLA | Li, Ying,et al."Effect of aluminum on the nature of the iron species in Fe-SBA-15".journal of physical chemistry b 110.51(2006):26114-26121. |
入库方式： OAI收割
来源：大连化学物理研究所
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