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Determination of fractal dimensions of silicon dioxide xerogel by means of gas-adsorption
其他题名气体吸附法测定二氧化硅干凝胶的分形维数
Sheng, YG; Xu, Y; Li, ZH; Wu, D; Sun, YH; Wu, ZH; Li ZH(李志宏); Wu ZH(吴忠华)
2005
发表期刊ACTA PHYSICA SINICA
卷号54期号:1页码:#REF!
通讯作者Sheng, YG (reprint author), Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China.
摘要Analysis of the structure of most irregular porous materials has recently been developed on the basis of the concepts of fractal geometry. The geometry enables general statements about so-called irregular structures to be made in terms of a few well-defined mathematical ideas, e. g. self-similarity and scaling, and a few mathematical parameters, e. g. fractal dimension. Gas adsorption is an ideal tool for characterization of the pore structure of xerogels and other porous materials. In this short paper, a simple and effective method to determine the fractal dimension of xerogels is presented. Instead of carrying out a series of gas adsorption/desorption experiments with various gases, only one gas adsorption/desorption experiment using a kind of gas is needed here. By studying the relations between the scaling and the data of pore size distribution and specific surface area, both surface fractal dimension and pore distribution fractal dimension can be easily derived. The reliability of the results is realized by performing error analysis and correction. The effectivity of the method is tested by experimental N-2 adsorption/desorption data of silica xerogels prepared with sol-gel routine.
文章类型Article
关键词fractal dimension gas-adsorption silicon dioxide xerogel
学科领域Physics
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000226005100040
引用统计
被引频次:3[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/311005/227018
专题多学科研究中心
推荐引用方式
GB/T 7714
Sheng, YG,Xu, Y,Li, ZH,et al. Determination of fractal dimensions of silicon dioxide xerogel by means of gas-adsorption[J]. ACTA PHYSICA SINICA,2005,54(1):#REF!.
APA Sheng, YG.,Xu, Y.,Li, ZH.,Wu, D.,Sun, YH.,...&吴忠华.(2005).Determination of fractal dimensions of silicon dioxide xerogel by means of gas-adsorption.ACTA PHYSICA SINICA,54(1),#REF!.
MLA Sheng, YG,et al."Determination of fractal dimensions of silicon dioxide xerogel by means of gas-adsorption".ACTA PHYSICA SINICA 54.1(2005):#REF!.
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