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Characterization and structural investigation of fractal porous-silica over an extremely wide scale range of pore size
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Physical Chemistry. KTH, School of Chemical Science and Engineering (CHE), Centres, Industrial NMR Centre.ORCID iD: 0000-0002-0231-3970
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Physical Chemistry. KTH, School of Chemical Science and Engineering (CHE), Centres, Industrial NMR Centre.
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2009 (English)In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 336, no 1, 215-225 p.Article in journal (Refereed) Published
Abstract [en]

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 mu m by means of Mercury porosimetry, H-1 NMR cryoporometry, nitrogen gas adsorption experiments together with direct evaluations of cross-sectional fractal dimension D-cs, and 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. Crown

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2009. Vol. 336, no 1, 215-225 p.
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URN: urn:nbn:se:kth:diva-18496DOI: 10.1016/j.jcis.2009.03.087ISI: 000266845400030OAI: oai:DiVA.org:kth-18496DiVA: diva2:336543
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Furo, Istvan

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