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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing silicon carbide nanorods by using aluminum as catalyst
The invention relates to a method for preparing silicon carbide nanorods by using aluminum as a catalyst. The method comprises the following steps of uniformly mixing carbon powder, silicon powder and aluminum powder to obtain a mixture, loading the mixture into a cylindrical mold of which the inner diameter is 10mm, preparing the mixture into a cylindrical sample at a pressure of 10-40MPa, placing the cylindrical sample into a clean aluminum oxide ceramic boat, placing the aluminum oxide ceramic boat into an atmosphere furnace and heating to 1000-1200 DEG C at a heating rate of 1-10 DEG C/min, carrying out heat preservation for 1-4 hours, finely grinding the fully reacted reactant in the ceramic boat, soaking the ground reactant in 0.1-0.2mol/L hydrofluoric acid for 0.5-2 hours, filtering, washing the reactant with deionized water until the pH of the cleaning liquid is 7.0 and finally drying at 450 DEG C for 0.5-1 hour to prepare the silicon carbide nanorods. The method has the advantages of low synthesis temperature, short reaction time, energy conservation and the like.
Method for preparing silicon carbide nanorods by using aluminum as catalyst
The invention relates to a method for preparing silicon carbide nanorods by using aluminum as a catalyst. The method comprises the following steps of uniformly mixing carbon powder, silicon powder and aluminum powder to obtain a mixture, loading the mixture into a cylindrical mold of which the inner diameter is 10mm, preparing the mixture into a cylindrical sample at a pressure of 10-40MPa, placing the cylindrical sample into a clean aluminum oxide ceramic boat, placing the aluminum oxide ceramic boat into an atmosphere furnace and heating to 1000-1200 DEG C at a heating rate of 1-10 DEG C/min, carrying out heat preservation for 1-4 hours, finely grinding the fully reacted reactant in the ceramic boat, soaking the ground reactant in 0.1-0.2mol/L hydrofluoric acid for 0.5-2 hours, filtering, washing the reactant with deionized water until the pH of the cleaning liquid is 7.0 and finally drying at 450 DEG C for 0.5-1 hour to prepare the silicon carbide nanorods. The method has the advantages of low synthesis temperature, short reaction time, energy conservation and the like.
Method for preparing silicon carbide nanorods by using aluminum as catalyst
WANG FEN (Autor:in) / ZHAO YUANBO (Autor:in) / JIAO YUHONG (Autor:in) / YANG CHENHUI (Autor:in) / ZHU JIANFENG (Autor:in) / YANG HAIBO (Autor:in) / LIN YING (Autor:in) / ZHENG YIBING (Autor:in)
01.04.2015
Patent
Elektronische Ressource
Englisch
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