A negative deviation from Porod's law in SAXS of organo-MSU-X
Li, ZH; Gong, YJ; Wu, D; Sun, YH; Wang, J; Liu, Y; Dong, BZ; Dong BZ(董宝中)
刊名MICROPOROUS AND MESOPOROUS MATERIALS
2001
卷号46期号:1页码:#REF!
关键词mesoporous materials organo-MSU-X interfacial layer SAXS negative deviation from Porod's law fractal
学科分类Chemistry; Science & Technology - Other Topics; Materials Science
DOI10.1016/S1387-1811(01)00292-X
通讯作者Sun, YH (reprint author), Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, POB 165, Taiyuan 030001, Peoples R China.
文章类型Article
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.
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
收录类别SCI
WOS记录号WOS:000169687900008
引用统计
被引频次:34[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225966
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
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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):#REF!.
APA Li, ZH.,Gong, YJ.,Wu, D.,Sun, YH.,Wang, J.,...&董宝中.(2001).A negative deviation from Porod's law in SAXS of organo-MSU-X.MICROPOROUS AND MESOPOROUS MATERIALS,46(1),#REF!.
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):#REF!.
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