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发明公开
CN109824362A 一步烧成的生物质碳化硅/碳复合材料及其制备方法 无效 - 驳回

一步烧成的生物质碳化硅/碳复合材料及其制备方法
摘要：
本发明涉及一步烧成的生物质碳化硅/碳复合材料及其制备方法。其技术方案是：将95～99wt％的硅源和1～5wt％的催化剂混合，即得混合料；按照浓度为3～5mol/L，将所述混合料置于乙醇溶液中，制得混合溶液；再将生物质多孔碳模板置于所述混合溶液中，在-0.05～-0.04MPa条件下用磁力搅拌器匀速搅拌1～3h，然后置入真空炉中，在-0.15～-0.1MPa条件下加热至1150～1350℃，保温3～7h；自然冷却，得到一步烧成的生物质碳化硅/碳复合材料。本发明具有工艺简单、反应温度低、成本低和易于工业化生产的特点，用该方法制备的一步烧成的生物质碳化硅/碳复合材料孔隙率高、形貌好和耐腐蚀。
摘要（英）：

The invention relates to a biomass silicon carbide/ carbon composite material sintered in one step and a preparation method thereof.According to thetechnical scheme,the preparation method comprises the following steps of: mixing 95-99wt% of a silicon source and 1-5wt% of a catalyst to obtain a mixture;placing the mixture into an ethanol solution according to the concentration of 3-5mol/L to prepare a mixed solution;placing abiomass porous carbon template in the mixed solution, stirring with a magnetic stirrer at a constant speed under the condition of 0.05-0.04MPa for 1-3hours, placing into avacuum furnace, heating to 1150-1350 DEG C under the condition of 0.15-0.1MPa, and keeping the temperature for 3-7hours; naturally cooling to obtain the biomass silicon carbide/ carbon composite material sintered in one step.The preparation method has the characteristics of simple process, low reaction temperature, low cost and easy industrial production, and the biomass silicon carbide/ carbon composite material sintered in one step prepared by the method has high porosity, good morphology and corrosion resistance.

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