Porous Silica of Self-Similar Morphology
| Autor: | T. Tamura, K. Aikawa, M. Fujitsu, Kazuo Ohbu, Katsumi Kaneko |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Materials science
Morphology (linguistics) Small-angle X-ray scattering Scanning electron microscope Surfaces and Interfaces Porosimetry Mesoporous silica Condensed Matter Physics Crystallography Adsorption Chemical engineering Phase (matter) Electrochemistry General Materials Science Porosity Spectroscopy |
| Zdroj: | Langmuir. 14:3041-3044 |
| ISSN: | 1520-5827 0743-7463 |
| DOI: | 10.1021/la9710031 |
| Popis: | New mesoporous silica was prepared using the template of the bicontinuous layered structure from the bicontinuous phase of poly(oxyethylene) dodecyl ether, H 2 O, and isooctane and the aqueous phase of 6 N HCl and teraethoxysilane. The synthesized silica was characterized by scanning electron microscopy (SEM) observation, X-ray diffraction, small angle X-ray scattering (SAXS), mercury porosimetry, and N 2 adsorption at 77 K The structure had a fractal nature of which cluster fractal dimensions are 1.7 and 1.83 from SEM observation and SAXS, respectively. The silica structure was noncrystalline like MCM-41. The prepared silica was highly porous and had a wide range pores from ultramicropores to macropores. |
| Databáze: | OpenAIRE |
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