Bazarjani, Mahdi Seifollahi ; Müller, Mathis M. ; Kleebe, Hans-Joachim ; Fasel, Claudia ; Riedel, Ralf ; Gurlo, Aleksander (2014)
In situ formation of tungsten oxycarbide, tungsten carbide and tungsten nitride nanoparticles in micro- and mesoporous polymer-derived ceramics.
In: Journal of Materials Chemistry A, 2 (27)
doi: 10.1039/C4TA01509F
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We present a facile approach to design micro- and mesoporous ceramic nanocomposites, which avoids the sintering of nanoparticles even at high synthesis temperatures and in situ forms nanoparticles in high temperature stable porous silicon oxycarbonitride (SiOC(N)) matrices. Our case study includes the synthesis of micro- and mesoporous polymer nanocomposites (c-WO3−x/WO3×H2O/[–Si(O)CH2–]n) which contain cubic tungsten oxide and tungsten oxide monohydrate (c-WO3−x/WO3×H2O) nanowhiskers in highly micro- and mesoporous polycarbosilane–siloxane matrices. The thermolysis of c-WO3−x/WO3×H2O/[–Si(O)CH2–]n nanocomposites under a suitable atmosphere and temperature leads to the in situ formation of well-dispersed nanoparticles of cubic tungsten oxide (c-WO3−x), tungsten oxycarbide (W2CO), tungsten carbide (WC) and tungsten nitride (WN) in micro- and mesoporous matrices.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Bazarjani, Mahdi Seifollahi ; Müller, Mathis M. ; Kleebe, Hans-Joachim ; Fasel, Claudia ; Riedel, Ralf ; Gurlo, Aleksander |
| Art des Eintrags: | Bibliographie |
| Titel: | In situ formation of tungsten oxycarbide, tungsten carbide and tungsten nitride nanoparticles in micro- and mesoporous polymer-derived ceramics |
| Sprache: | Englisch |
| Publikationsjahr: | 10 April 2014 |
| Verlag: | Royal Society of Chemistry Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Materials Chemistry A |
| Jahrgang/Volume einer Zeitschrift: | 2 |
| (Heft-)Nummer: | 27 |
| DOI: | 10.1039/C4TA01509F |
| Kurzbeschreibung (Abstract): | We present a facile approach to design micro- and mesoporous ceramic nanocomposites, which avoids the sintering of nanoparticles even at high synthesis temperatures and in situ forms nanoparticles in high temperature stable porous silicon oxycarbonitride (SiOC(N)) matrices. Our case study includes the synthesis of micro- and mesoporous polymer nanocomposites (c-WO3−x/WO3×H2O/[–Si(O)CH2–]n) which contain cubic tungsten oxide and tungsten oxide monohydrate (c-WO3−x/WO3×H2O) nanowhiskers in highly micro- and mesoporous polycarbosilane–siloxane matrices. The thermolysis of c-WO3−x/WO3×H2O/[–Si(O)CH2–]n nanocomposites under a suitable atmosphere and temperature leads to the in situ formation of well-dispersed nanoparticles of cubic tungsten oxide (c-WO3−x), tungsten oxycarbide (W2CO), tungsten carbide (WC) and tungsten nitride (WN) in micro- and mesoporous matrices. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften > Fachgebiet Geomaterialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
| Hinterlegungsdatum: | 02 Jul 2014 11:53 |
| Letzte Änderung: | 12 Aug 2021 12:19 |
| PPN: | |
| Sponsoren: | R. R. thanks the Fonds der Chemischen Industrie, Frankfurt, Germany, for continuous financial support. , The financial support by the priority program “ Adapting surfaces for high temperature applications ” (SPP 1299) of the German Research Foundation (DFG) is greatly acknowledged. |
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