Missing Piece of the Mechanism of the Turkevich Method: The Critical Role of Citrate Protonation
Missing Piece of the Mechanism of the Turkevich Method: The Critical Role of Citrate Protonation
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DOI：
10.1021/acs.chemmater.6b01796
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发表时间：
2016-06-14
影响因子：
8.6
通讯作者：
Polte, Joerg
中科院分区：
文献类型：
--
作者：
Kettemann, Frieder;Birnbaum, Alexander;Polte, Joerg
本文研究了Turkevich方法的生长机理。实验结果提供了缺失的一块机械难题，使颗粒生长的实际控制中常用的Turkevich方法。应用所获得的知识，推导出一个成功的Turkevich综合的边界条件。此外，在此条件下的Turkevich方法是高度重现性的推导。在这些条件下，对Turkevich合成进行了修改，以显示具有+/- 0.1 nm的前所未有的再现性的小单分散颗粒。
This contribution investigates the growth mechanism of the Turkevich method. The experimental results provide the missing piece of the mechanistic puzzle which enables the actual control of particle growth in the commonly used Turkevich method. Applying the gained knowledge, the boundary conditions for a successful Turkevich synthesis are deduced. Moreover, the conditions under which the Turkevich method is highly reproducible are derived. Following these conditions, the Turkevich synthesis is modified to reveal small monodisperse particles with an unprecedented reproducibility of +/- 0.1 nm.