【摘 要】
：
以SBA-15介孔二氧化硅为模板,以蔗糖为碳源制备了SiC纳米颗粒.研究了制备温度、升温速率和反应时间对SiC产物的影响.相对较低的制备温度、较快的升温速率、较短的保温时间,能
【机 构】
：
中国科学院上海硅酸盐研究所,中国科学院研究生院
论文部分内容阅读
以SBA-15介孔二氧化硅为模板,以蔗糖为碳源制备了SiC纳米颗粒.研究了制备温度、升温速率和反应时间对SiC产物的影响.相对较低的制备温度、较快的升温速率、较短的保温时间,能充分发挥介孔模板的限域作用,可制备出尺寸小、分布均匀的SiC纳米颗粒.相对较高的制备温度、较慢的升温速率、较长的保温时间,介孔模板的限域作用减弱,产物中出现更多的SiC纳米线,生成的SiC颗粒也会明显长大.
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