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Aerosol-generated mesoporous silicon oxycarbide particles.
- Source :
-
Pure & Applied Chemistry . Aug2009, Vol. 81 Issue 8, p1449-1457. 9p. 2 Diagrams, 2 Charts, 4 Graphs. - Publication Year :
- 2009
-
Abstract
- Aerosol-generated mesoporous organosilica submicronic spheres have been converted into porous silicon oxycarbide (SiCO) glasses by pyrolysis at 1000 °C in an inert atmosphere. Spherical mesoporous particles obtained from acidic solutions of 1,2-bis(triethoxysilyl) ethane and Pluronic® F127 structuring agent were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption/desorption, and multi nuclear solid-state magic-angle spinning (MAS) NMR. These particles were then pyrolyzed at 1000 °C and transformed into a SiCO phase as evidenced by 29Si MAS NMR, while TEM shows preserved mesoporosity, unfortunately difficult to access owing to the presence of an outer layer of dense silica. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00334545
- Volume :
- 81
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Pure & Applied Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 53071065
- Full Text :
- https://doi.org/10.1351/PAC-CON-08-11-06