A negative deviation from porod's law in saxs of organo-msu-x
文献类型：期刊论文
| 作者 | Li, ZH; Gong, YJ; Wu, D; Sun, YH; Wang, J; Liu, Y; Dong, BZ |
| 刊名 | Microporous and mesoporous materials
 |
| 出版日期 | 2001-07-01 |
| 卷号 | 46期号:1页码:75-80 |
| 关键词 | Mesoporous materials Organo-msu-x Interfacial layer Saxs Negative deviation from porod's law Fractal |
| ISSN号 | 1387-1811 |
| 通讯作者 | Sun, yh() |
| 英文摘要 | Small-angle x-ray scattering (saxs) using synchrotron radiation as x-ray source has been employed to characterize the microscopic structure of organo-modified mesoporous molecular sieves (organo-msu-x) prepared by a one-pot template-directed synthesis. it is shown that the saxs profile is hardly constant with pored's law showing a negative slope, i.e., negative deviation. this suggests that there is a diffuse interfacial layer located between the pores and the matrix. this suggests that the organic groups remain covalently linked to the matrix, as indicated by (sicp)-si-29 mas nmr and ft-ir. the average thickness of the interfacial layer was found to be about 1 nm for each of the three samples with different kinds and the same amounts (20%) of organic groups. this kind of material has also been proved to possess both surface and mass fractal structures. the correction of the negative deviation from pored's law is performed in order to obtain the pore structure of the amorphous porous silica materials. (c) 2001 elsevier science b.v. all rights reserved. |
| WOS关键词 | MESOPOROUS MOLECULAR-SIEVES ; SMALL-ANGLE SCATTERING ; RAY-SCATTERING ; SILICA |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| WOS类目 | Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000169687900008 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176324 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Sun, YH |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Lab Synchtrotron Radiat, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, ZH,Gong, YJ,Wu, D,et al. A negative deviation from porod's law in saxs of organo-msu-x[J]. Microporous and mesoporous materials,2001,46(1):75-80. |
| APA | Li, ZH.,Gong, YJ.,Wu, D.,Sun, YH.,Wang, J.,...&Dong, BZ.(2001).A negative deviation from porod's law in saxs of organo-msu-x.Microporous and mesoporous materials,46(1),75-80. |
| MLA | Li, ZH,et al."A negative deviation from porod's law in saxs of organo-msu-x".Microporous and mesoporous materials 46.1(2001):75-80. |
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来源：高能物理研究所
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