Re-crystallization of silver nanoparticles in a highly concentrated NaCl environment-a new substrate for surface enhanced IR-visible Raman spectroscopy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15110%2F11%3A33118774" target="_blank" >RIV/61989592:15110/11:33118774 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/11:33118774
Result on the web
<a href="http://dx.doi.org/10.1039/c0ce00776e" target="_blank" >http://dx.doi.org/10.1039/c0ce00776e</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c0ce00776e" target="_blank" >10.1039/c0ce00776e</a>

Result language
angličtina
Original language name
Re-crystallization of silver nanoparticles in a highly concentrated NaCl environment-a new substrate for surface enhanced IR-visible Raman spectroscopy
Original language description
The common approach of silver nanoparticles activation for surface enhanced Raman spectroscopy often exploits an addition of chloride ions, generally at low concentrations of about 0.1-10 mM in the final dispersion. For the first time, we report the applicability of a highly concentrated NaCl solution (final concentration of 400 mM) for the SERS activation of silver nanoparticles (similar to 30 nm). Microscopic, optical and particle size distribution measurements reveal the rapid and reproducible re-crystallization of the primary silver nanoparticles to one-order larger crystallites (similar to 400 nm) already after 15 min after NaCl addition. The crystal growth mechanism is discussed with respect to the proved essential role of oxygen in the reactionsystem. The specific action of chloride ions is demonstrated through a comparison with NaBr and NaI solutions of the identical concentrations, which do not induce the analogous crystallization process. The recrystallized silver particles
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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