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相关论文: Water adsorption on amorphous silica surfaces: A C…

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We apply periodic domain-based local pair natural orbital second-order M{\o}ller--Plesset perturbation theory (DLPNO-MP2) to probe the adsorption energy of CO on MgO(001), the consensus toy model system for surface adsorption. A number of…

化学物理 · 物理学 2026-01-01 Andrew Zhu , Poramas Komonvasee , Arman Nejad , David P. Tew

The adsorption of a collagen fragment on both a hydrophobic, hydrogen-terminated and a hydrophilic, natively oxidised Si surface is investigated using all-atom molecular dynamics. While favourable direct protein-surface interactions via…

软凝聚态物质 · 物理学 2019-03-27 Daniel J. Cole , Mike C. Payne , Lucio Colombi Ciacchi

Molecular dynamics simulations of ultrathin water film confined between atomically flat rigid diamond plates are described. Films with thickness of one and two molecular diameters are concerned and TIP4P model is used for water molecules.…

统计力学 · 物理学 2009-03-25 A. V. Khomenko , N. V. Prodanov

We investigated the vibrational dynamics and the structural relaxation of water nanoconfined in porous silica samples with pore size of 4 nm at different levels of hydration and temperature. We used as spectroscopic technique the…

介观与纳米尺度物理 · 物理学 2016-12-21 A. Taschin , P. Bartolini , R. Torre

This paper presents an experimental study on thermal transport to single water droplets evaporating on heated bi-phobic surfaces consisting of a superhydrophobic matrix with a circular hydrophobic pattern with strong contact line pinning. A…

流体动力学 · 物理学 2019-12-17 Wenliang Qi , Junhui Li , Patricia B. Weisensee

The evaporation of a binary sessile ethanol-water droplet on an inclined substrate is studied experimentally just below the critical sliding angles for different substrate temperatures. A customized goniometer equipped with a CMOS camera…

流体动力学 · 物理学 2020-03-24 Pallavi Katre , Pradeep Gurrala , Saravanan Balusam , Sayak Banerjee , Kirti Chandra Sahu

The kinetics of a 2A + B2 = 2AB reaction on supported metal catalyst with spillover effects is investigated using Dynamic Monte Carlo simulations. In the presented model A particles can adsorb reversibly on both metal clusters and the…

化学物理 · 物理学 2007-05-23 Lukasz Cwiklik , Barbara Jagoda-Cwiklik , Marek Frankowicz

The adsorption of CO on unreconstructed and reconstructed Ir{100} has been studied, using a combination of density functional theory and thermodynamics, to determine the relative stability of the two phases as a function of CO coverage,…

材料科学 · 物理学 2009-11-13 Prasenjit Ghosh , Shobhana Narasimhan , Stephen J. Jenkins , David A. King

We describe the phase diagram of amorphous solid water by performing molecular dynamics simulations. Our simulations follow different paths in the phase diagram: isothermal compression/decompression, isochoric cooling/heating and isobaric…

软凝聚态物质 · 物理学 2009-11-11 Nicolas Giovambattista , H. Eugene Stanley , Francesco Sciortino

We propose a theoretical investigation of the physical adsorption of neutral comb-polymers with an adsorbing skeleton and non-adsorbing side-chains on a flat surface. Such polymers are particularly interesting as "dynamic coating" matrices…

软凝聚态物质 · 物理学 2009-11-11 Anna Sartori , Albert Johner , Jean-Louis Viovy , Jean-Francois Joanny

Using the isothermal molecular dynamics (MD), coalescence/sintering of Au nanoparticles (NPs) was simulated by employing the Nose-Hoover thermostat. The MD simulation was realized by using the well-known open program LAMMPS, its version for…

介观与纳米尺度物理 · 物理学 2021-06-29 V. V. Puytov , I. V. Talyzin , V. M. Samsonov

The results of a study that helps understand the mechanisms of adsorption of polyelectrolytes on particles, using numerical simulation methods, specifically the one known as dissipative particle dynamics are reported here. The adsorption of…

软凝聚态物质 · 物理学 2016-08-24 M. A. Balderas Altamirano , R. Camacho , E. Pérez , A. Gama Goicochea

Relations between the thermodynamics and dynamics of supercooled liquids approaching a glass transition have been proposed over many years. The potential energy surface of model liquids has been increasingly studied since it provides a…

We simulate the liquid silicon surface with first-principles molecular dynamics in a slab geometry. We find that the atom-density profile presents a pronounced layering, similar to those observed in low-temperature liquid metals like Ga and…

软凝聚态物质 · 物理学 2009-10-31 G. Fabricius , E. Artacho , D. Sanchez-Portal , P. Ordejon , D. A. Drabold , J. M. Soler

The melting-like transition in sodium clusters Na_N, with N=55, 92, and 142 is studied by using constant-energy molecular dynamics simulations. An orbital-free version of the Car-Parrinello technique is used which scales linearly with…

原子与分子团簇 · 物理学 2007-05-23 Andres Aguado , Jose M. Lopez , Julio A. Alonso , M. J. Stott

In this work, using theoretical calculations within the framework of the density functional theory, taking into account the dispersive VDW interaction, the processes of adsorption and interaction of a water molecule with a TiO2 surface in…

We present a multi-scale computational framework suitable for designing solid lubricant interfaces fully in silico. The approach is based on stochastic thermodynamics founded on the classical thermally activated two-dimensional…

材料科学 · 物理学 2022-04-27 Paola C. Torche , Andrea Silva , Denis Kramer , Tomas Polcar , Ondrej Hovorka

We use a simple generic model to study the desorption of atoms from a solid surface in contact with a liquid, by using a combination of Monte Carlo and molecular dynamics simulations. The behavior of the system depends on two parameters:…

化学物理 · 物理学 2022-11-16 Krishna Jaiswal , Horia Metiu , Vishal Agarwal

In this article, we investigate the nanoscale soil-water retention mechanism of unsaturated clay through molecular dynamics and machine learning. Pyrophyllite was chosen due to its stable structure and as the precursor of other 2:1 clay…

材料科学 · 物理学 2023-07-06 Zhe Zhang , Xiaoyu Song

By means of atomistic molecular dynamics simulations we investigate the behaviour of poly(N-isopropylacrylamide), PNIPAM, in water at temperatures below and above the lower critical solution temperature (LCST), including the undercooled…

软凝聚态物质 · 物理学 2019-02-11 L. Tavagnacco , E. Zaccarelli , E. Chiessi