Nano Archive

Formation of silver nanoparticles in PVP matrix in supercritical CO2: Small-angle X-ray scattering and modeling

Shtykova, E. and Dembo, K. and Volkov, V. and Said-Galiev, E. and Stakhanov, A. and Khokhlov, A. (2009) Formation of silver nanoparticles in PVP matrix in supercritical CO2: Small-angle X-ray scattering and modeling. Nanotechnologies in Russia, 4 . pp. 700-710.

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Official URL: http://dx.doi.org/10.1134/S1995078009090122

Abstract

The process of silver-particle formation in a PVP matrix in supercritical carbon dioxide is investigated by means of small-angle X-ray scattering (SAXS). Application of modern methods of SAXS data interpretation, including procedure of ab initio modeling of particle structure, allowed us for the first time to reveal structural organization of both individual metal nanoparticles and of their clusters incorporated in the polymer matrix. It is shown that pores in PVP films are not simple cavities; they have complex structures which are exhibited when these cavities are contrasted (filled) with metal compounds and/or reduced metallic nanoparticles. As a result, the shape, size, and size distribution of the obtained metallic nanoparticles and their clusters depended on the structure of the polymeric matrix used as a formation medium.

Item Type:Article
Additional Information:10.1134/S1995078009090122
ID Code:7606
Deposited By:Prof. Alexey Ivanov
Deposited On:11 Nov 2009 07:54
Last Modified:11 Nov 2009 08:00

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