Hauser, Ralf ; Nahar-Borchert, Saifun ; Riedel, Ralf ; Ikuhara, Yumi H. ; Iwamoto, Yuji (2012)
Polymer-derived SiBCN ceramic and their potential application for high temperature membranes.
In: Journal of the Ceramic Society of Japan, 114 (1330)
doi: 10.2109/jcersj.114.524
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A novel preceramic polymer suitable to form a SiBCN ceramic was synthesized by hydroboration reaction of 1,3,5-trivinyl-1,3,5-trimethyl-cyclotrisilazane with borane dimethylsulphide. The obtained polymer denoted as poly (borosilazane) was characterised by FT-IR and NMR spectroscopy and its thermal stability was studied by thermal gravimetric analysis in combination with in situ mass spectrometry (TG/MS). The polymer-to-ceramic transformation was achieved at 1050 degrees C in inert argon atmosphere yielding black and X-ray amorphous SiBCN ceramics thermally stable up to 1800 degrees C. Using the dip-coating technique, a SiBCN ceramic thin film was formed on a porous alumina substrate. N-2 sorption isotherm analysis revealed that the thin film contained a small amount of micropores of about 0.6 nm in diameter, as well as mesopores between 2.7 and 6 nm in size. The total pore volume was found to be about three orders of magnitude smaller than that of a hydrogen permselective amorphous silica membrane derived from polysilazane. These results indicated potential application of the SiBCN thin film as a molecular sieve membrane suitable for high-temperature separation of small gas molecules like hydrogen below 0.3 nm in size.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2012 |
| Autor(en): | Hauser, Ralf ; Nahar-Borchert, Saifun ; Riedel, Ralf ; Ikuhara, Yumi H. ; Iwamoto, Yuji |
| Art des Eintrags: | Bibliographie |
| Titel: | Polymer-derived SiBCN ceramic and their potential application for high temperature membranes |
| Sprache: | Englisch |
| Publikationsjahr: | Juni 2012 |
| Verlag: | The Ceramic Society of Japan |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the Ceramic Society of Japan |
| Jahrgang/Volume einer Zeitschrift: | 114 |
| (Heft-)Nummer: | 1330 |
| DOI: | 10.2109/jcersj.114.524 |
| Kurzbeschreibung (Abstract): | A novel preceramic polymer suitable to form a SiBCN ceramic was synthesized by hydroboration reaction of 1,3,5-trivinyl-1,3,5-trimethyl-cyclotrisilazane with borane dimethylsulphide. The obtained polymer denoted as poly (borosilazane) was characterised by FT-IR and NMR spectroscopy and its thermal stability was studied by thermal gravimetric analysis in combination with in situ mass spectrometry (TG/MS). The polymer-to-ceramic transformation was achieved at 1050 degrees C in inert argon atmosphere yielding black and X-ray amorphous SiBCN ceramics thermally stable up to 1800 degrees C. Using the dip-coating technique, a SiBCN ceramic thin film was formed on a porous alumina substrate. N-2 sorption isotherm analysis revealed that the thin film contained a small amount of micropores of about 0.6 nm in diameter, as well as mesopores between 2.7 and 6 nm in size. The total pore volume was found to be about three orders of magnitude smaller than that of a hydrogen permselective amorphous silica membrane derived from polysilazane. These results indicated potential application of the SiBCN thin film as a molecular sieve membrane suitable for high-temperature separation of small gas molecules like hydrogen below 0.3 nm in size. |
| Freie Schlagworte: | polymer-derived ceramic (PDC), SiBCN ceramic, hydroboration, poly (borosilazane), dip-coating, membrane |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
| Hinterlegungsdatum: | 20 Apr 2012 10:57 |
| Letzte Änderung: | 13 Dez 2021 13:50 |
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