Issue 29, 2005
From the journal:

Journal of Materials Chemistry

Preparation of a microporous silicon oximide gel from the reaction of tris(dimethylamino)silylamine with formamide and its pyrolytic conversion into a silicon oxynitride based glass

Fei Cheng,*a   Stephen M. Kelly,a   Frédéric Lefebvre,b   Adam F. Lee,c   Karen Wilson,c   Stephen Clarka  and  John S. Bradleya  

* Corresponding authors

a Department of Chemistry, University of Hull, Cottingham Road, Hull, UK
E-mail: f.cheng@hull.ac.uk
Fax: +44 (0)1482 466410
Tel: +44 (0)1482 465419

b Laboratoire de Chimie Organométallique de Surface, 43 Bd du 11 Novembre 1918, 69616 Villeurbanne Cedex, France
E-mail: Lefebvre@cpe.fr
Fax: +04 72 43 17 95
Tel: +04 72 43 18 07

c Department of Chemistry, University of York, Heslington, York, UK
E-mail: afl2@york.ac.uk

Abstract

A high-surface-area silicon oximide-based gel [SiOC(H)[double bond, length as m-dash]NSi]m[Si2N-C(H)[double bond, length as m-dash]O]n[SiN(H)-C(H)[double bond, length as m-dash]O]p[SiOC(H)[double bond, length as m-dash]NH]q[SiNH]r[SiNH2]s[SiNMe2]t was prepared via a formamide-based aminolysis of tris(dimethylamino)silylamine, (Me2N)3SiNH2. The structure of the gel and the mechanism of formation are elucidated. Pyrolysis of the gel at 1000 °C under N2 flow gave an amorphous microporous oxynitride-based glass with a BET surface area of 195 m2 g−1.

Graphical abstract: Preparation of a microporous silicon oximide gel from the reaction of tris(dimethylamino)silylamine with formamide and its pyrolytic conversion into a silicon oxynitride based glass

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Article information

DOI
https://doi.org/10.1039/B504835D
Article type
Paper
Submitted
06 Apr 2005
Accepted
31 May 2005
First published
15 Jun 2005

J. Mater. Chem., 2005,15, 3039-3044

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Preparation of a microporous silicon oximide gel from the reaction of tris(dimethylamino)silylamine with formamide and its pyrolytic conversion into a silicon oxynitride based glass

F. Cheng, S. M. Kelly, F. Lefebvre, A. F. Lee, K. Wilson, S. Clark and J. S. Bradley, J. Mater. Chem., 2005, 15, 3039 DOI: 10.1039/B504835D

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