Sol–gel preparation of low oxygen content, high surface area silicon nitride and imidonitride materials
Sol–gel preparation of low oxygen content, high surface area silicon nitride and imidonitride materials
Reactions of Si(NHMe)4 with ammonia are effectively catalysed by small ammonium triflate concentrations, and can be used to produce free-standing silicon imide gels. Firing at various temperatures produces amorphous or partially crystallised silicon imidonitride/nitride samples with high surface areas and low oxygen contents. The crystalline phase is entirely ?-Si3N4 and structural similarities are observed between the amorphous and crystallised materials.
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Sardar, Kripasindhu
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Bounds, Richard
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Carravetta, Marina
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Cutts, Geoffrey
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Hargreaves, Justin S.J.
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Hector, Andrew L.
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Hriljac, Joseph A.
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Levason, William
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Wilson, Felix
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Sardar, Kripasindhu
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Bounds, Richard
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Carravetta, Marina
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Cutts, Geoffrey
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Hargreaves, Justin S.J.
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Hector, Andrew L.
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Hriljac, Joseph A.
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Levason, William
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Wilson, Felix
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Sardar, Kripasindhu, Bounds, Richard, Carravetta, Marina, Cutts, Geoffrey, Hargreaves, Justin S.J., Hector, Andrew L., Hriljac, Joseph A., Levason, William and Wilson, Felix
(2016)
Sol–gel preparation of low oxygen content, high surface area silicon nitride and imidonitride materials.
Dalton Transactions, .
(doi:10.1039/C5DT04961J).
Abstract
Reactions of Si(NHMe)4 with ammonia are effectively catalysed by small ammonium triflate concentrations, and can be used to produce free-standing silicon imide gels. Firing at various temperatures produces amorphous or partially crystallised silicon imidonitride/nitride samples with high surface areas and low oxygen contents. The crystalline phase is entirely ?-Si3N4 and structural similarities are observed between the amorphous and crystallised materials.
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Accepted/In Press date: 24 February 2016
e-pub ahead of print date: 24 February 2016
Organisations:
Electrochemistry, Organic Chemistry: SCF
Identifiers
Local EPrints ID: 389570
URI: http://eprints.soton.ac.uk/id/eprint/389570
ISSN: 0300-9246
PURE UUID: d12bd9ee-1975-49e2-8d01-5e045eb1e415
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Date deposited: 09 Mar 2016 11:37
Last modified: 15 Mar 2024 03:14
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Contributors
Author:
Kripasindhu Sardar
Author:
Richard Bounds
Author:
Geoffrey Cutts
Author:
Justin S.J. Hargreaves
Author:
Joseph A. Hriljac
Author:
Felix Wilson
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