Stopped-flow analysis on the mechanism of perylene nanoparticle formation by the reprecipitation method
Stopped-flow analysis on the mechanism of perylene nanoparticle formation by the reprecipitation method
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DOI：
10.1016/j.jcrysgro.2008.09.038
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发表时间：
2009-01-15
影响因子：
1.8
通讯作者：
Nakanishi, Hachiro
中科院分区：
文献类型：
--
作者：
Mori, Junichi;Miyashita, Yousuke;Nakanishi, Hachiro
首次将停流技术成功地用于直接监测再沉淀法生成纳米二萘嵌苯。在溶剂混合后的几十毫秒内迅速形成纳米颗粒。通过研究颗粒形成速率与二萘嵌苯过饱和度的关系，证明了再沉淀过程的动力学符合经典成核理论。正如这种理论所预测的那样，过饱和度对形成的纳米颗粒的尺寸有关键影响，其中过饱和度越高，颗粒越小。(C)2008 Elsevier BV保留所有权利
The stopped-flow technique was successfully used for directly monitoring the formation of perylene nanoparticles by the reprecipitation method for the first time. Nanoparticles were rapidly formed within tens of milliseconds after mixing of the solvents. By studying the dependence of the rate of particle formation on the supersaturation ratio of perylene, it was demonstrated that the kinetics of the reprecipitation process was in accordance with the Classical Nucleation Theory. As predicted by Such theory, the supersaturation ratio of perylene showed a critical effect on the size of the nanoparticles formed, where higher supersaturation ratios yield smaller particles. (C) 2008 Elsevier B.V. All rights reserved