Journal of Siberian Federal University. Engineering & Technologies / Preparation of Dispersions with Fractal Aggregates of Silver Nanoparticles

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Issue
Journal of Siberian Federal University. Engineering & Technologies. 2008 1 (2)
Authors
Chiganova, Galina A.
Contact information
Galina A. Chiganova Siberian Federal University, 79 Svobodny, Krasnoyarsk, 660041 Russia Department of the physics of nanophase materials, Krasnoyarsk, Scientific Center, Siberian Division, Russian Academy of Sciences, Academgorodok, Krasnoyarsk, 660036 Russia, e-mail: ;
Keywords
silver nanoparticles; aggregative stability; fractal aggregates; electrostatic stabilized sols; metallopolymer composites
Abstract

Methods of macroelectrophoresis, spectrophotometry and electronic microscopy were applied for investigation of the silver hydrosols characterized by electrostatic factor of stability. It has been shown that the preparation of aggregative stable sols with increasing of reagents’concentration is limited not only by screening of the electrical double layer but also by decreasing of the surface potential. The proposed procedure allows applying the electrostatic stabilized silver sols for the preparation of composites with fractal aggregates of nanoparticles - new photochromic materials.

Pages
155-161
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/812

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