Production and Thermal Stability of Silver Nanoparticles in the Ag–O System
| Autor: | S. M. Romanenko, L. A. Krushinskaya, V. Ya. Markiev, S. E. Litvin, Yu. A. Kurapov, Ya. A. Stel’makh |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Thermogravimetric analysis
Aqueous solution Materials science Inorganic chemistry Metals and Alloys Nanoparticle Condensed Matter Physics Evaporation (deposition) Silver nanoparticle Condensed Matter::Soft Condensed Matter Condensed Matter::Materials Science Adsorption Mechanics of Materials Phase (matter) Physics::Atomic and Molecular Clusters Materials Chemistry Ceramics and Composites Thermal stability Physics::Chemical Physics |
| Zdroj: | Powder Metallurgy and Metal Ceramics. 53:199-204 |
| ISSN: | 1573-9066 1068-1302 |
| DOI: | 10.1007/s11106-014-9604-4 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink