THOROUGH CHARACTERIZATION OF A SILICON OXYNITRIDE COATED SILICA-GEL SYNTHESIZED VIA CHEMICAL SURFACE COATING

Authors
IMPENS NREN SCHRIJNEMAKERS K VANSANT EF GROBET P RIGA J BROUXHON O
Citation
Nren. Impens et al., THOROUGH CHARACTERIZATION OF A SILICON OXYNITRIDE COATED SILICA-GEL SYNTHESIZED VIA CHEMICAL SURFACE COATING, Journal of materials chemistry, 7(8), 1997, pp. 1467-1472
Citations number
31
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Journal of materials chemistry → ACNP
ISSN journal
09599428
Volume
7
Issue
8
Year of publication
1997
Pages
1467 - 1472
Database
ISI
SICI code
0959-9428(1997)7:8<1467:TCOASO>2.0.ZU;2-A
Abstract
Mesoporous silica gel coated with a preceramic polysilazane coating ha s been pyrolysed in order to obtain a nitride coating on the pore wall s. The reactions involved were studied using a combination of thermogr avimetry (TG) and IR spectroscopy (FTIR) of the solids and volatiles. The bulk and surface chemical compositions of the ceramic end products have been determined by FTIR, NMR and X-ray photoelectron spectroscop y (XPS). The morphology including the homogeneity of the coating was i nvestigated using a combination of N-2 porosimetry and transmission el ectron microscopy.