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Characterization and structural investigation of fractal porous-silica over an extremely wide scale range of pore size
| 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) |
| URI: | http://hdl.handle.net/2115/38726 |
| 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)
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Submitter: 眞山 博幸
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