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Characterization and structural investigation of fractal porous-silica over an extremely wide scale range of pore size

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Title: Characterization and structural investigation of fractal porous-silica over an extremely wide scale range of pore size
Authors: Ono, Yusuke Browse this author
Mayama, Hiroyuki Browse this author →KAKEN DB
Furó, István Browse this author
Sagidullin, Alexander I. Browse this author
Matsushima, Keiichiro Browse this author
Ura, Haruo Browse this author
Uchiyama, Tomoyuki Browse this author
Tsujii, Kaoru Browse this author
Keywords: Fractal
Pore size distribution
Specific surface area
Hierarchical porous structure
Sol-gel synthesis
Mercury porosimetry
H-1 NMR cryoporometry
Nitrogen gas adsorption
Issue Date: 1-Aug-2009
Publisher: Elsevier Inc.
Journal Title: Journal of Colloid and Interface Science
Volume: 336
Issue: 1
Start Page: 215
End Page: 225
Publisher DOI: 10.1016/j.jcis.2009.03.087
PMID: 19406424
Abstract: We have succeeded in creating Menger sponge-like fractal body, i.e., porous-silica samples with Menger sponge-like fractal geometries, by a novel template method utilizing template particles of alkylketene dimer (AKD) and a sol-gel synthesis of tetramethyl orthosilicate (TMOS). We report here the first experimental results on characterization and structural investigations of the fractal porous-silica samples prepared with various conditions such as calcination temperature and packing condition of the template particles. In order to characterize the fractal porous-silica samples, pore volume distribution, porosity and specific surface area were measured over an extremely wide scale from 1 nm to 100 μm by means of mercury porosimetry, H-1 NMR cryoporometry, and nitrogen gas adsorption experiments together with direct evaluations of cross-sectional fractal dimension D_[cs], size limits of D_[cs]. We have found that the pore volume distribution and specific surface area of the fractal porous-silica samples can be discussed in terms of different fractal porous structures at different scale regions.
Type: article (author version)
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 眞山 博幸

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