Abstract
Wound silicon carbide nanowires (SiCNWs) were synthesised using carbon nanotube (CNT) template growth method at 1150 °C by calcining a mixture of CNTs and silicon monoxide (SiO) under low vacuum condition, acidification and carbon removal. Results demonstrate that the acidified product is SiC/CNT composite nanotubular structure because of the continuous vacuuming during the reaction. This structure is obtained by in situ growth of SiC on CNTs, and its morphology is consistent with CNTs. After the carbon removal process, the tubular structure is broken, thereby causing the shape of SiCNWs to be entangled with irregular ruptured tubes of different lengths and diameter of 1.7–38 nm. The SiCNWs synthesised by this method have a small-diameter, intertwined and dense structure. The intermediate product is SiC/CNT composite nanotube structure. The low reaction temperature and simple synthesis process make it possible to achieve industrial production.
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