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Specific molecular interactions underlie unexpected and useful phenomena in nanofluidic systems, but require descriptions that go beyond traditional macroscopic hydrodynamics. In this letter, we demonstrate how equilibrium molecular…

介观与纳米尺度物理 · 物理学 2023-06-07 Phillip Helms , Anthony R. Poggioli , David T. Limmer

In this study, using nonequilibrium molecular dynamics simulation, the water flow in carbon nanocones is studied using the TIP4P/2005 rigid water model. The results demonstrate a nonuniform dependence of the flow on the cone apex angle and…

The self-assembly mechanism of one-end-open carbon nanotubes (CNTs) suspended in an aqueous solution was studied by molecular dynamics simulations. It was shown that two one-end-open CNTs with different diameters can coaxially self-assemble…

介观与纳米尺度物理 · 物理学 2017-07-31 Hang Xiao , Xiaoyang Shi , Xi Chen

Using a Coarse-grained Molecular Dynamics (CMD) approach we study the apparent nonlinear dynamics of water molecules filling/emptying carbon nanotubes as a function of system parameters. Different levels of the pore hydrophobicity give rise…

统计力学 · 物理学 2009-11-11 Saravanapriyan Sriraman , Ioannis G. Kevrekidis , Gerhard Hummer

This computational study investigates glyphosate adsorption mechanisms on hydroxyl-functionalized carbon nanotubes (CNTs) as an alternative approach for environmental remediation. Single-walled CNTs with (10,0) zigzag chirality were…

材料科学 · 物理学 2026-02-09 H. T. Silva , L. C. S. Faria , T. A. Aversi-Ferreira , I. Camps

Friction forces are conventionally modeled via semiclassical theories that associate energy dissipation with newtonian motion on corrugated interface potentials. This consolidated approach is challenged at the nanoscale by observation of…

介观与纳米尺度物理 · 物理学 2026-04-15 Alberto Ambrosetti , Pier Luigi Silvestrelli , John F. Dobson , Luca Salasnich

In molecular dynamics simulations, nanochannel flows are usually driven by a constant force, that aims to represent a pressure difference between inlet and outlet, and periodic boundary conditions are applied in the streamwise direction…

流体动力学 · 物理学 2018-01-17 Vicente Bitrián , Javier Principe

Narrow carbon nanotubes (CNTs) desalinate water, mimicking water channels of biological membranes, yet the physics behind selectivity, especially, the effect of the membrane embedding CNTs on water and ion transfer, is still unclear. Here,…

材料科学 · 物理学 2020-12-22 Vadim Neklyudov , Viatcheslav Freger

Extensive molecular dynamics simulations of water permeation and ion selectivity of the single-walled carbon nanotubes with the radial deformation are presented . The simulated results indicate that there is a close relationship between the…

介观与纳米尺度物理 · 物理学 2012-03-01 Xu Kui , Wang Qing-Song , Tan Bin , Chen Ming-Xuan , Miao Ling , Jiang Jian-Jun

Water and water-mediated interactions determine thermodynamic and kinetics of protein folding, protein aggregation and self-assembly in confined spaces. To obtain insights into the role of water in the context of folding problems, we…

软凝聚态物质 · 物理学 2015-05-28 S. Vaitheeswaran , Jie Chen , D. Thirumalai

A simple model for the friction experienced by the one dimensional water chains that flow through subnanometer diameter carbon nanotubes is studied. The model is based on a lowest order perturbation theory treatment of the friction…

流体动力学 · 物理学 2023-05-17 J. B. Sokoloff , A. W. C. Lau

We have investigated the diffusion and structure of TIP4P/2005 water confined in carbon nanotubes subjected to external electric fields. A wide range of diameters has been used to show a highly size-dependent behavior of the water…

The aim of the paper is the study of fluid mixtures in nanotubes by the methods of continuum mechanics. The model starts from a statistical distribution in mean-field molecular theory and uses a density expansion of Taylor series. We get a…

流体动力学 · 物理学 2018-08-01 Henri Gouin , Augusto Muracchini , Tommaso Ruggeri

The curvature dependence of the physisorption properties of a water molecule inside and outside an armchair carbon nanotube (CNTs) is investigated by an incremental density-fitting local coupled cluster treatment with single and double…

化学物理 · 物理学 2016-01-08 Shulai Lei , Shujuan Li , Burkhard Schmidt , Beate Paulus

A simple 1D lattice gas model is presented, which very well describes the equilibrium and kinetic behaviors of water confined in a thin carbon nanotube found in an atomistic molecular dynamics(MD) simulation {[} Nature {\bf 414}, 188 (2001)…

统计力学 · 物理学 2007-05-23 Xin Zhou , Cheng-Quan Li , Mitsumasa Iwamoto

Co$_3$O$_4$ is an important catalyst for the oxidation of organic molecules in the liquid phase. Still, understanding the atomistic details of Co$_3$O$_4$-water interfaces under operando conditions remains extremely challenging. While ab…

化学物理 · 物理学 2025-09-03 Amir Omranpour , Jörg Behler

Molecular dynamics simulations are performed to investigate the water permeation across the single-walled carbon nanotube (SWCNT) with the radial breathing mode (RBM) vibration. It is found that the RBM can play a significant role in…

介观与纳米尺度物理 · 物理学 2014-02-20 Qi-Lin Zhang , Wei-Zhou Jiang , Jian Liu , Ren-De Miao , Nan Sheng

Using molecular dynamics simulations we study the dynamics of a water-like TIP5P model of water in hydrophilic and hydrophobic confinement. We find that in case of extreme nanocofinement such that there is only one molecular layer of water…

软凝聚态物质 · 物理学 2010-05-14 Pradeep Kumar

The theory of electrokinetic ion transport in cylindrical channels of a fixed surface charge density is revisited. Attention is focused on impact of the hydrophobic slippage and mobility of adsorbed surface charges. We formulate generalised…

软凝聚态物质 · 物理学 2022-12-14 Olga I. Vinogradova , Elena F. Silkina , Evgeny S. Asmolov

The equilibrium density of fluids under nanoconfinement can differ substantially from their bulk density. Using a mean-field approach to describe the energetic landscape near the carbon nanotube (CNT) wall, we obtain analytical results…

流体动力学 · 物理学 2015-06-11 Gerald J. Wang , Nicolas G. Hadjiconstantinou