一水软铝石纳米粉体的水热合成及表征

来源期刊：中国有色金属学报2001年第z1期

论文作者：周秋生 李小斌 熊翔 刘业翔

文章页码：206 - 209

关键词：一水软铝石； 粉体； 水热合成

Key words：hydrothermal synthesis； nano meter size； boehmite powder

摘    要：以碱式乙酸铝和氨水为前驱物 ,以水为反应介质 ,在不同温度和不同恒温时间下水热合成一水软铝石粉体 ,随着温度升高和保温时间延长 ,合成粉体结晶度变好 ,晶粒变大。在温度为 160℃ ,恒温时间为 2h ,制备出了结晶度好、平均粒径约 30nm的一水软铝石粉体。并通过SEM观察、X射线衍射分析和粉体比表面积的测量对合成的粉体进行了表征 ,并用截线法确定了粉体的平均粒径

Abstract: Nanometer sized boehmite powders with the minimum mean particle size 30 nm were successfully prepared by hydrothermal method in the autoclave with autogeneous pressure. The optimum hydrothermal conditions, temperature 160 ℃, isothermal time 2 h, were obtained to get desirable boehmite powder with relatively well crystallized and little agglomerations. Characterizations were carried out with X ray diffractometer, the scanning electronic micrograph and the specific area measurement.