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

Carassiti, L., Jones, A., Harrison, P., Dobson, P.S., Kingman, S., MacLaren, I. and Gregory, D.H. (2011) Ultra-rapid, sustainable and selective synthesis of silicon carbide powders and nanomaterials via microwave heating. Energy and Environmental Science, 4, pp. 1503-1510. (doi:10.1039/C0EE00799D)

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Publisher's URL: http://dx.doi.org/10.1039/C0EE00799D

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.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Harrison, Dr Philip and MacLaren, Dr Ian and Carassiti, Ms Lucia and Gregory, Professor Duncan and Dobson, Dr Phil
Authors: Carassiti, L., Jones, A., Harrison, P., Dobson, P.S., Kingman, S., MacLaren, I., and Gregory, D.H.
Subjects:Q Science > QD Chemistry
College/School:College of Science and Engineering > School of Chemistry
College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
College of Science and Engineering > School of Physics and Astronomy
Journal Name:Energy and Environmental Science
ISSN:1754-5692
ISSN (Online):1754-5706
Published Online:07 March 2011

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