摘要
在超重力场中合成了平均表观粒径在１７．５～２１．５ｎｍ之间、粒度分布窄的立方形纳米ＣａＣＯ３颗粒。探讨了超重力水平对颗粒粒度、反应时间的影响，并对颗粒进行了ＴＥＭ、ＸＲＤ、ＴＧ和ＤＴＡ等表征。与常重力场中合成纳米ＣａＣＯ３相比，粒度分布较窄。随着超重力水平的提高，产物粒径减小，反应时间明显降低。
The cube-shaped particles of CaCO3 of average size from 175 to 215nm and of very narrow size distribution were synthesized in High Gravity Field The influence of the high gravity level on the particles size and the reaction time were experimentally investigated The particles were characterized by TEM, XRD, TG, DTA techniques, and also the particles size distribution was analyzed.
基金
国家自然科学基金
关键词
超重力场
立方形
碳酸钙
纳米颗粒
High Gravity Nanometer CaCO3 Precipitation Characterization
