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Determination of average pore diameter of SiO2 xerogels by small angle X-ray scattering
Li, ZH; Sun, JH; Wu, D; Sun, YH; Liu, Y; Sheng, WJ; Dong, BZ; Liu Y(柳义); Sheng WJ(生文君); Dong BZ(董宝中)
2000
发表期刊ACTA PHYSICA SINICA
卷号49期号:7页码:1312-1315
通讯作者Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
摘要Small angle X-ray scattering (SAXS) with synchrotron radiation as X-ray source has been used to study the structure of Sig xerogels prepared by sol-gel process. All SAXS profiles in this paper deviate from Porod's law and show negative or positive deviation. In order to obtain the information of pore in SiO2 xerogels, we have proposed the corresponding methods to correct the negative and positive deviations from Pored's law. Then, the average pore diameter of SiO2 xerogels is determined with Debye's method and Guinier's method, separately, and the results are found to be close to each other. The average diameters fall in the rang1 3-25 nm for samples prepared under various conditions. The results of SAXS are also close to that determined by N-2 adsorption method at 77 K with ASAP2000.
文章类型Article
关键词small angle X-ray scattering SiO2 xerogels average pore diameter
学科领域Physics
研究领域[WOS]Physics
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语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000088125500020
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被引频次:14[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/311005/239271
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Li, ZH,Sun, JH,Wu, D,et al. Determination of average pore diameter of SiO2 xerogels by small angle X-ray scattering[J]. ACTA PHYSICA SINICA,2000,49(7):1312-1315.
APA Li, ZH.,Sun, JH.,Wu, D.,Sun, YH.,Liu, Y.,...&董宝中.(2000).Determination of average pore diameter of SiO2 xerogels by small angle X-ray scattering.ACTA PHYSICA SINICA,49(7),1312-1315.
MLA Li, ZH,et al."Determination of average pore diameter of SiO2 xerogels by small angle X-ray scattering".ACTA PHYSICA SINICA 49.7(2000):1312-1315.
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