The phase diagram of a simple fluid confined in a quencheddisordered structure is studied by grand canonical Monte Carlosimulation. The matrix is modeled to represent a fractaland highly porous silica aerogel andis generated from a diffusionlimited cluster-cluster aggregation procedure.The multicanonicalensemble sampling technique combined with the histogram reweightingmethod makes possible to build the liquid-vapor coexistencecurve which is narrower than in the bulk.A shouldering on the liquid side is observed which indicatesthe possibility of a liquid-liquid transition smeared out byfinite size effects.
Rovere, M. (2004). Phase diagram of fluids confined in disordered porous materials..
Phase diagram of fluids confined in disordered porous materials.
ROVERE, Mauro
2004-01-01
Abstract
The phase diagram of a simple fluid confined in a quencheddisordered structure is studied by grand canonical Monte Carlosimulation. The matrix is modeled to represent a fractaland highly porous silica aerogel andis generated from a diffusionlimited cluster-cluster aggregation procedure.The multicanonicalensemble sampling technique combined with the histogram reweightingmethod makes possible to build the liquid-vapor coexistencecurve which is narrower than in the bulk.A shouldering on the liquid side is observed which indicatesthe possibility of a liquid-liquid transition smeared out byfinite size effects.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
