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

Research output: Contribution to journalArticle

Authors

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

Colleges, School and Institutes

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.

Details

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