Production and Thermal Stability of Silver Nanoparticles in the Ag–O System

The paper examines the structure of porous Ag + NaCl condensates and analyzes the phase and chemical composition and sizes of Ag nanoparticles produced by electron-beam evaporation and vacuum condensation. It is shown that Ag nanoparticles are highly adsorptive to air oxygen in a porous salt matrix....

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Bibliographic Details
Published in:Powder metallurgy and metal ceramics 2014-07, Vol.53 (3-4), p.199-204
Main Authors: Kurapov, Yu. A., Krushinskaya, L. A., Litvin, S. E., Romanenko, S. M., Stelmakh, Ya. A., Markiev, V. Ya
Format: Article
Language:English
Subjects:
Adsorption
Analysis
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Glass
Materials Science
Metallic Materials
Nanoparticles
Nanostructured Materials
Natural Materials
Surface active agents
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Summary:The paper examines the structure of porous Ag + NaCl condensates and analyzes the phase and chemical composition and sizes of Ag nanoparticles produced by electron-beam evaporation and vacuum condensation. It is shown that Ag nanoparticles are highly adsorptive to air oxygen in a porous salt matrix. Thermogravimetric analysis is used to study the kinetics of variation in the weight of porous NaCl and Ag + NaCl condensates during heating (to 650°C) and cooling in air. The results are considered in terms of physical and chemical adsorption. Stabilized colloidal systems of silver nanoparticles are obtained. Photon correlation spectroscopy is employed to determine the size of nanoparticles in aqueous solutions with surfactant agents.
ISSN:1068-1302
1573-9066
DOI:10.1007/s11106-014-9604-4