Back to Search
Start Over
Exceptionally stable silver nanoparticles synthesized by laser ablation in alcoholic organic solvent
- Source :
- Colloids and surfaces. A, Physicochemical and engineering aspects, 559 (2018): 148–158. doi:10.1016/j.colsurfa.2018.09.046, info:cnr-pdr/source/autori:Sportelli, Maria C.; Clemente, Maurizio; Izzi, Margherita; Volpe, Annalisa; Ancona, Antonio; Picca, Rosaria A.; Palazzo, Gerardo; Cioffi, Nicola;/titolo:Exceptionally stable silver nanoparticles synthesized by laser ablation in alcoholic organic solvent/doi:10.1016%2Fj.colsurfa.2018.09.046/rivista:Colloids and surfaces. A, Physicochemical and engineering aspects (Print)/anno:2018/pagina_da:148/pagina_a:158/intervallo_pagine:148–158/volume:559
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Silver nanoparticles synthesized using laser ablation synthesis in isopropanol, in absence of additional capping agents, were found to be stable with respect to both aggregation and silver oxidation over several months. The rationale for this extreme stability of metal nanoparticles suspended in organic solvents was challenging. On the basis of theoretical considerations and basic experiments it is proposed that the stabilization of silver nanoparticles involves the formation of an organic coating generated by the interaction of isopropanol molecules with the pulsed, high-energy laser beam. This coating prevents, on the one hand, any chemical reaction on colloidal nanoparticles (e.g. silver oxidation); on the other hand, the presence of the organic shell with a nature akin to that of the organic solvent led to weaker Van der Walls interactions between approaching nanoparticles enabling a larger stability than for naked metallic nanoparticles.
- Subjects :
- Laser ablation
Materials science
Pulsed laser ablation in liquids
Organic solvent
Nanoparticle
Isopropanol
02 engineering and technology
engineering.material
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Chemical reaction
Silver nanoparticle
Colloidal stability
0104 chemical sciences
symbols.namesake
Colloid and Surface Chemistry
Coating
Chemical engineering
engineering
symbols
Molecule
Silver nanoparticles
van der Waals force
0210 nano-technology
Subjects
Details
- ISSN :
- 09277757
- Volume :
- 559
- Database :
- OpenAIRE
- Journal :
- Colloids and Surfaces A: Physicochemical and Engineering Aspects
- Accession number :
- edsair.doi.dedup.....6d803fc480e3fc0f025894385b0a05eb