Structure formation in aqueous dispersions of detonation nanodiamonds

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• 作者：G. A. Chiganova ; E. Yu. Gosudareva
• 刊名：Nanotechnologies in Russia
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：11
• 期：7-8
• 页码：401-406
• 全文大小：297 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Nanotechnology
  Industrial and Production Engineering
  Manufacturing, Machines and Tools
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1995-0799
• 卷排序：11

文摘

The kinetics of coagulation and sedimentation of aqueous dispersions of detonation nanodiamonds as a function of the indifferent electrolyte concentration and the volume fraction of the solid phase has been studied. It is shown that, in a certain range of volume concentrations of nanodiamond particles, a partial degradation of hydration layers on the particle surface leads to the rapid formation of coagulation structures. The difference in the coagulation rates of the dispersions in the presence of electrolytes is consistent with the different effects of potassium and sodium cations on the structure of water and, accordingly, the hydration layers on the nanodiamond particle surface.Original Russian Text © G.A. Chiganova, E.Yu. Gosudareva, 2016, published in Rossiiskie Nanotekhnologii, 2016, Vol. 11, Nos. 7–8.