Effect of Charge Distribution on the Stability of Nano-dispersions

Kallay, Nikola and Preočanin, Tajana and Kovačević, Davor (2009) Effect of Charge Distribution on the Stability of Nano-dispersions. Croatica Chemica Acta, 82 (2). pp. 531-535. ISSN 0011-1643

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Abstract

In the course of aggregation of very small colloid particles, i.e. nano-particles, the overlap of the diffuse layers is almost complete, so that one cannot apply the common DLVO theory. Since nano-particles are small compared to the extent of the diffuse layer, the process is considered in the same way as for two interacting ions. Therefore, the Brønsted concept based on the Transition State Theory was applied. In this work the effect of charge distribution among nano-particles was examined. Results of numerical simulation show that wider charge distribution causes substantial decrease in the stability of nano-dispersions.

Item Type: Article
Keywords: nano-dispersions; colloid stability; charge distribution
Date: 2009
Subjects: NATURAL SCIENCES > Chemistry > Physical Chemistry
Divisions: Faculty of Science > Department of Chemistry
Publisher: Hrvatsko kemijsko društvo
Related URLs:
Depositing User: Branka Maravic
Date Deposited: 09 May 2014 13:28
Last Modified: 09 May 2014 13:28
URI: http://digre.pmf.unizg.hr/id/eprint/1118

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