摘要
以六水氯化镁和轻质氧化镁为原料,制备出碱式氯化镁纳米棒;再以碱式氯化镁纳米棒为前驱物,采用沉淀转化法制备出前驱物氢氧化镁纳米棒;再通过前驱物热分解法得到直径150～250 nm,长6～10μm的氧化镁单晶纳米棒。通过X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)和选区电子衍射(SAED)对产物进行表征与分析,研究了煅烧条件对氧化镁纳米棒形貌的影响,得到了氧化镁纳米棒的最佳制备工艺条件为:煅烧温度400℃,煅烧时间1 h,升温速率3℃/min。
Magnesium chloride nanorods are prepared by liquid phase method with light magnesium oxide and magnesium chloride hexahydrate as raw materials. Then, using converting precipitation method, mag- nesium hydroxide nanorods are synthesized with basic magnesium chloride nanorods as precursor. Magne- sium oxide single crystal nanorods which diameter of 150 - 250 nm and length of 6 - 10 μm are prepared, after calcining the magnesium hydroxide nanorods. The obtained products are characterized by X - ray dif- fraction （ XRD）, scanning electron microscopy （ SEM）, transmission electron microscopy （ TEM ） and se- lected - area electron diffraction （SAED）. Effects of preparation parameters on the morphology of magne- sium oxide nanorods are investigated systematically. The result shows that the optimum conditions to pre- pare magnesium oxide nanorods are as follows：calcination temperature of 400 ℃, calcination time of 1 h, heating rate of 3 ℃/min.
出处
《河南化工》
CAS
2013年第11期30-32,共3页
Henan Chemical Industry
关键词
氧化镁
纳米棒
制备
表征
形貌
magnesium oxide
nanorods
preparation
characterization
morphology
