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|Title:||Effects of nanoparticle heating on the structure of a concentrated aqueous salt solution|
|Authors:||Sindt, J. O.|
Alexander, A. J.
Camp, P. J.
|Publisher:||American Institute of Physics Inc.|
|Citation:||Sindt J. O. Effects of nanoparticle heating on the structure of a concentrated aqueous salt solution / J. O. Sindt, A. J. Alexander, P. J. Camp. — DOI 10.1063/1.5002002 // Journal of Chemical Physics. — 2017. — Vol. 147. — Iss. 21. — 214506.|
|Abstract:||The effects of a rapidly heated nanoparticle on the structure of a concentrated aqueous salt solution are studied using molecular dynamics simulations. A diamond-like nanoparticle of radius 20 Å is immersed in a sodium-chloride solution at 20% above the experimental saturation concentration and equilibrated at T = 293 K and P = 1 atm. The nanoparticle is then rapidly heated to several thousand degrees Kelvin, and the system is held under isobaric-isoenthalpic conditions. It is observed that after 2-3 ns, the salt ions are depleted far more than water molecules from a proximal zone 15-25 Å from the nanoparticle surface. This leads to a transient reduction in molality in the proximal zone and an increase in ion clustering in the distal zone. At longer times, ions begin to diffuse back into the proximal zone. It is speculated that the formation of proximal and distal zones, and the increase in ion clustering, plays a role in the mechanism of nonphotochemical laser-induced nucleation. © 2017 Author(s).|
AQUEOUS SALT SOLUTION
MOLECULAR DYNAMICS SIMULATIONS
SODIUM CHLORIDE SOLUTION
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
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