Aggregation stability of a positively charged γ-Al2O3 sol prepared from an air-dry nanopowder

被引：0
作者：
A. V. Volkova
L. M. Molodkina
E. V. Golikova
L. E. Ermakova
N. F. Bogdanova
机构：
[1] St. Petersburg State University,Department of Chemistry
[2] St. Petersburg State Technical University,undefined
来源：
Colloid Journal | 2014年 / 76卷
关键词：
Colloid Journal; Aggregation Stability; Coagulation Rate; Primary Nanoparticles; Pair Interaction Energy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Photometric data on the aggregation stability of Al2O3 hydrosols prepared from Aeroxide Alu C nanopowder in NaCl solutions at pH 4.5 and 5.5 have been discussed within the framework of the generalized Derjaguin-Landau-Verwey-Overbeek theory. Analysis of the pair interaction potentials in an ensemble of particles of a sol primordially containing both primary nanoparticles and their aggregates has led to the conclusion that the coagulation proceeds via the barrierless mechanism in the secondary potential minimum.
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页码：395 / 407
页数：12
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