Ultra-rapid, sustainable and selective synthesis of silicon carbide powders and nanomaterials via microwave heating

Lucia Carassiti, Aled Jones, Philip Harrison, Phillip S. Dobson, Samuel Kingman, Ian MacLaren, Duncan H. Gregory

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33 Citations (Scopus)

Abstract

Silicon carbide has been synthesised from silicon or silica combined with activated carbon or graphite via microwave heating over timescales from minutes to seconds without the need for inert atmospheres or subsequent purification. The carbide morphology and phase purity can be controlled by the microwave cavity used and the power applied and hence by the heating rate. Short irradiation times (ca. 5 minutes) in a multimode cavity using activated carbon produce single phase β-SiC nanofibres as small as 5 nm in diameter while large crystallites of α- and β-SiC can obtained in ≪1 minute using high power, single mode cavity microwave techniques.

Original languageEnglish
Pages (from-to)1503-1510
Number of pages8
JournalEnergy and Environmental Science
Volume4
Issue number4
DOIs
Publication statusPublished - Apr 1 2011

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All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Pollution

Cite this

Carassiti, L., Jones, A., Harrison, P., Dobson, P. S., Kingman, S., MacLaren, I., & Gregory, D. H. (2011). Ultra-rapid, sustainable and selective synthesis of silicon carbide powders and nanomaterials via microwave heating. Energy and Environmental Science, 4(4), 1503-1510. https://doi.org/10.1039/c0ee00799d