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Sol–gel preparation of low oxygen content, high surface area silicon nitride and imidonitride materials
Authors:
Kripasindhu
Sardar
(University of Southampton)
,
Richard
Bounds
(University of Southampton)
,
Marina
Carravetta
(University of Southampton)
,
Geoff
Cutts
(University of Birmingham)
,
Justin
Hargreaves
(University of Glasgow)
,
Andrew
Hector
(University of Southampton)
,
Joe
Hriljac
(University of Birmingham)
,
William
Levason
(University of Southampton)
,
Felix
Wilson
(University of Southampton)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Dalton Trans.
, VOL 13
State:
Published (Approved)
Published:
February 2016
Diamond Proposal Number(s):
9124

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 α-Si3N4 and structural similarities are observed between the amorphous and crystallised materials.
Subject Areas:
Chemistry
Instruments:
I15-Extreme Conditions