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以化学沉淀法首先制备了氢氧化镁(Mg(OH)2)纳米材料,并且进一步在LiNO3和NaCl 2种盐介质中分别进行液相和固相辅助煅烧使其转变成纳米氧化镁.研究表明,液相LiNO3熔盐介质比固相NaCl熔盐介质更有利于纳米MgO的生成,并且纳米MgO产率也更高.简要分析了2种熔盐辅助煅烧的不同机理.

Nano magnesium hydroxide is firstly prepared by chemical precipitation method, and then is mixed with two different molten salts(liquid LiNO3 and solid NaCl ) to calcine for preparing nano magnesia. It shows that the two different molten salts play different roles in the preparation of nano magnesia. Compared with the solid molten salt NaCl, more nano magnesia can be prepared with the liquid molten salt LiNO3 while the dispersion of the products is also better. In addition, the reasons causing the distinct properties when two different molten salts are used to assist calcine magnesium hydroxide are also discussed in details.

参考文献

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