Sol–gel preparation of low oxygen content, high surface area silicon nitride and imidonitride materials

Kripasindhu Sardar, Richard Bounds, Marina Carravetta, Geoffrey Cutts, Justin S. J. Hargreaves, Andrew L. Hector, Joseph A. Hriljac, William Levason, Felix Wilson

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
192 Downloads (Pure)

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.
Original languageEnglish
Pages (from-to)5765-5774
JournalDalton Transactions
Volume45
Issue number13
Early online date24 Feb 2016
DOIs
Publication statusPublished - 7 Apr 2016

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