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The non-equilibrium dynamics of condensation phenomena in nano-pores is studied via Monte Carlo simulation of a lattice gas model. Hysteretic behavior of the particle density as a function of the density of a reservoir is obtained for…

软凝聚态物质 · 物理学 2009-11-10 Raja Paul , Heiko Rieger

Nanoscale confinement of molecules in a fluid can result in enhanced viscosity, local fluidic order, or collective motion. Confinement also affects ion transport and/or the rate and equilibrium concentration in a chemical reaction, all of…

Fluid phase equilibria involving nano-dispersed phases, where at least one of the coexisting phases is confined to a small volume, are investigated by molecular dynamics simulation. Complementing previous studies on nanoscopic droplets,…

介观与纳米尺度物理 · 物理学 2013-07-23 Martin Horsch , Hans Hasse

Structural order parameters of a smectic liquid crystal confined into the columnar form of porous silicon are studied using neutron scattering and optical spectroscopic techniques. It is shown that both the translational and orientational…

软凝聚态物质 · 物理学 2011-06-08 Ronan Lefort , Denis Morineau , Régis Guégan , Moréac Alain , Claude Ecolivet , Mohammed Guendouz

The simulation of fluid flow in real, multiscale porous media remains challenging due to the complexity of nanoscale phenomena and the difficulty of developing upscaling methodologies. In this study, we introduce a multiscale filtration…

流体动力学 · 物理学 2026-05-13 Irina Nesterova , Rustem Sirazov , Aleksey Khlyupin

We study the conformations of a semiflexible chain, confined in nano-scaled spherical cavities, under two distinct processes of confinement. Radial contraction and packaging are employed as two confining procedures. The former method is…

软凝聚态物质 · 物理学 2014-09-29 Arman Fathizadeh , Maziar Heidari , Behrouz Eslami-Mossallam , Mohammad Reza Ejtehadi

The growth of crystals confined in porous or cellular materials is ubiquitous in Nature and industry. Confinement affects the formation of biominerals in living organisms, of minerals in the Earth's crust and of salt crystals damaging…

材料科学 · 物理学 2022-11-30 Felix Kohler , Olivier Pierre-Louis , Dag Kristian Dysthe

The formation of (bio)molecular condensates via liquid-liquid phase separation in cells has received increasing attention, as these coacervates play important functional and regulatory roles within biological systems. However, the majority…

软凝聚态物质 · 物理学 2022-11-24 Arash Nikoubashman , Miho Yanagisawa

We present a selection of x-ray and neutron diffraction patterns of spherical (He, Ar), dumbbell- (N2, CO), and chain-like molecules (n-C9H20, n-C19H40) solidified in nanopores of silica glass (mean pore diameter 7nm). These patterns allow…

介观与纳米尺度物理 · 物理学 2007-05-23 Patrick Huber , Klaus Knorr

Reactions at solid-water interfaces play a foundational role in water treatment systems, catalysis, chemical separations, and in predicting chemical fate and transport in the environment. Over the last century, experimental measurements and…

化学物理 · 物理学 2022-12-14 Anastasia G. Ilgen , Kevin Leung , Louise J. Criscenti , Jeffery A. Greathouse

A molecular dynamics simulation of water confined in a silica pore is performed in order to compare it with recent experimental results on water confined in porous Vycor glass at room temperature. A cylindrical pore of 40 A is created…

统计力学 · 物理学 2009-10-31 M. Rovere , M. A. Ricci , D. Vellati , F. Bruni

At low temperatures, colloidal particles with short-range attractive and long-range repulsive interactions can form various periodic microphases in bulk.In this paper, we investigate the self-assembly behaviour of colloids with competing…

软凝聚态物质 · 物理学 2023-12-12 Ningyi Li , Junhong Li , Lijingting Qing , Shicheng Ma , Yao Li , Baohui Li

We present a comparative computer simulation study of the phase diagrams and anomalous behavior of two-dimensional ($2D$) and quasi-two-dimensional ($q2D$) classical particles interacting with each other through isotropic core-softened…

软凝聚态物质 · 物理学 2019-06-14 Yu. D. Fomin , E. N. Tsiok , V. N. Ryzhov

Typical device architectures in polymer-based optoelectronic devices, such as field effect transistors organic light emitting diodes and photovoltaic cells include sub-100 nm semiconducting polymer thin-film active layers, whose…

Using Monte Carlo simulations, we study the assembly of colloidal particles interacting via isotropic core-corona potentials in two dimensions and confined in a circular box. We explore the structural variety at low temperatures as function…

软凝聚态物质 · 物理学 2020-01-08 Erik R. Fonseca , Carlos I. Mendoza

We investigate the mechanical behavior of a confined granular packing of irregular polyhedral particles under repeated heating and cooling cycles by means of numerical simulations with the Non-Smooth Contact Dynamics method. Assuming a…

We present a coarse-grained model for ionic surfactants in explicit aqueous solutions, and study by computer simulation both the impact of water content on the morphology of the system, and the consequent effect of the formed interfaces on…

软凝聚态物质 · 物理学 2015-03-16 Samuel Hanot , Sandrine Lyonnard , Stefano Mossa

Methane hydrate nucleation under nanoconfinement remains poorly understood due to the complex interplay between geometric restriction and molecular ordering. Here, we investigate the structural organization of water-methane systems confined…

Carbon-carbon supercapacitors are high power electrochemical energy storage systems which store energy through reversible ion adsorption at the electrode-electrolyte interface. Due to the complex structure of the porous carbons used as…

材料科学 · 物理学 2024-06-19 El Hassane Lahrar , Patrice Simon , Céline Merlet

We study bidisperse colloidal suspensions confined within glass microcapillary tubes to model the glass transition in confined cylindrical geometries. We use high speed three-dimensional confocal microscopy to observe particle motions for a…

软凝聚态物质 · 物理学 2013-02-28 Nabiha Saklayen , Gary L. Hunter , Kazem V. Edmond , Eric R. Weeks