Nanoparticle Confinement in Anomalous Liquids

Details Nanoparticle Confinement in Anomalous Liquids Nanoparticle Confinement in Anomalous Liquids

2011-07-11

arxiv.org/abs/1107.1926v2

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

We investigate using molecular dynamics the effect of the structure of nanoconfinement for liquids with water-like anomalies and liquid-liquid phase transition (LLPT). We find that if the confinement is in an ordered matrix of nanoparticles (NPs) the anomalies are preserved, although the LLPT shifts to lower temperatures, higher pressures and higher densities with respect to bulk. On the contrary, if the NPs matrix is disordered, we find a drastically different phase diagram: the LLPT occurs only in a reduced interval of densities and the anomalies are washed out. To understand this effect we calculate the changes in the system at the microscopic level. In all the different confinements considered here we observe a dramatic increase of density of liquid near the confining NPs. In the disordered case the confinement induces larger heterogeneity in the local density, responsible for the weakening of the LLPT and the disappearance of anomalies.

Affiliated with

Also associated with

No associations

Rating

Nanoparticle Confinement in Anomalous Liquids does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nanoparticle Confinement in Anomalous Liquids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nanoparticle Confinement in Anomalous Liquids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-137209