Electrochemical method for the synthesis of silver nanoparticles
| Autor: | Olga Gapurova, Rashid A. Khaydarov, Yuri Estrin, Thomas Scheper, Renat R. Khaydarov |
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| Rok vydání: | 2008 |
| Předmět: |
Aqueous solution
Materials science Scanning electron microscope Analytical chemistry Nanoparticle Bioengineering General Chemistry Condensed Matter Physics Electrochemistry Atomic and Molecular Physics and Optics Silver nanoparticle Colloid Dynamic light scattering Chemical engineering Transmission electron microscopy Modeling and Simulation General Materials Science |
| Zdroj: | Journal of Nanoparticle Research. 11:1193-1200 |
| ISSN: | 1572-896X 1388-0764 |
| DOI: | 10.1007/s11051-008-9513-x |
| Popis: | The article deals with a novel electrochemical method of preparing long-lived silver nanoparticles suspended in aqueous solution as well as silver powders. The method does not involve the use of any chemical stabilising agents. The morphology of the silver nanoparticles obtained was studied using transmission electron microscopy, scanning electron microscopy, atomic force microscopy and dynamic light scattering measurements. Silver nanoparticles suspended in water solution that were produced by the present technique are nearly spherical and their size distribution lies in the range of 2 to 20 nm, the average size being about 7 nm. Silver nanoparticles synthesised by the proposed method were sufficiently stable for more than 7 years even under ambient conditions. Silver crystal growth on the surface of the cathode in the electrochemical process used was shown to result in micron-sized structures consisting of agglomerated silver nanoparticles with the sizes below 40 nm. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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