From Molecular Fragments to Crystals: A UV Raman Spectroscopic Study on the Mechanism of Fe-ZSM-5 Synthesis
文献类型：期刊论文
| 作者 | Fan, Fengtao1,2; Sun, Keju1,2; Feng, Zhaochi1; Xia, Haian1,2; Han, Bo1; Lian, Yuxiang1; Ying, Pinliang1; Li, Can1 |
| 刊名 | chemistry-a european journal
 |
| 出版日期 | 2009 |
| 卷号 | 15期号:13页码:3268-3276 |
| 关键词 | hydrothermal synthesis iron Raman spectroscopy reaction mechanisms zeolites |
| 英文摘要 | the entire sequence of crystallization events of fe-zsm-5 was monitored by uv raman spectroscopy in combination with hrtem, uv/vis spectroscopy, x-ray diffraction patterns, and periodic dft calculations. fe-zsm-5 was synthesized by an organic-free method to avoid signal interference from the organic template in raman spectra. framework iron atoms with resonance raman bands at 516, 1115, and 1165 cm(-1). and a raman band at 1016 cm(-1) are detected for fe-zsm-5. in the early stage of fe-zsm-5 synthesis, the precursor contains iron atoms in distorted tetrahedral coordination and five- and six-membered silicate rings. nucleation by aggregation of the precursor species was monitored by u v raman spectroscopy based on the resonance raman effect, and confirmed by periodic dft calculations. evolution of iron species on the surface and in the bulk phase was monitored by uv raman spectroscopy with excitation at 244 and 325 nm, as well as hrtem. nucleation takes place first in the core of the amorphous particles, and crystalline nuclei with fe-zsm-5 structure are formed in the core by consuming the amorphous shell. finally the amorphous particles are completely transformed into fe-zsm-5 crystals. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | x-ray-diffraction ; density-functional theory ; zeolite-a ; hydrothermal synthesis ; fe-silicalite ; mfi zeolite ; benzene hydroxylation ; phase-transformation ; mesoporous materials ; catalytic-properties |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264674300027 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141311]  |
| 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.Chinese Acad Sci, Grad Sch, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Fengtao,Sun, Keju,Feng, Zhaochi,et al. From Molecular Fragments to Crystals: A UV Raman Spectroscopic Study on the Mechanism of Fe-ZSM-5 Synthesis[J]. chemistry-a european journal,2009,15(13):3268-3276. |
| APA | Fan, Fengtao.,Sun, Keju.,Feng, Zhaochi.,Xia, Haian.,Han, Bo.,...&Li, Can.(2009).From Molecular Fragments to Crystals: A UV Raman Spectroscopic Study on the Mechanism of Fe-ZSM-5 Synthesis.chemistry-a european journal,15(13),3268-3276. |
| MLA | Fan, Fengtao,et al."From Molecular Fragments to Crystals: A UV Raman Spectroscopic Study on the Mechanism of Fe-ZSM-5 Synthesis".chemistry-a european journal 15.13(2009):3268-3276. |
入库方式： OAI收割
来源：大连化学物理研究所
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