Journal
CERAMICS INTERNATIONAL
Volume 41, Issue 4, Pages 5287-5293Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2014.12.007
Keywords
SiC; magnesiothermic; ZMS-5 Zeolite; Nano-composite; Furfuryl alcohol
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Nanostructured SiC was synthesized by magnesiothermal reduction of silica derived from zeolite ZSM-5 with a Si/Al ratio of about 80 and four carbons from different sources. The carbons were carbon black and three carbons synthesized by impregnating furfuryl alcohol or sucrose into three porous templates (ZSM-5, clinoptilolite and MCM-48). Magnesiothermal reduction was carried out by reacting mixtures of silica, carbon and magnesium powder at 600-800 degrees C in a flowing argon atmosphere. The starting materials and final products were characterized by X-Ray diffraction, thermogravimetric analysis, scanning electron microscopy and BET analysis. The results indicated that the synthesis of nanostructured SiC is influenced by the chemical nature of the carbon and its surface area. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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