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Water is a fundamental component of life, playing a critical role in regulating metabolic processes and facilitating the dissolution and transport of essential molecules. However, the presence of emerging contaminants, such as…

Water-solid interfaces pervade the natural environment and modern technology. On some surfaces, water-water interactions induce the formation of partially dissociated interfacial layers; understanding why is important to model processes in…

The water impact of an inclined flat plate and at high horizontal velocity is experimentally investigated with focus on the fluid-structure interaction aspects. Several test conditions have been examined by varying the vertical to…

流体动力学 · 物理学 2021-05-17 Emanuele Spinosa , Alessandro Iafrati

We present results from extensive molecular dynamics simulations of collapse transitions of hydrophobic polymers in explicit water focused on understanding effects of lengthscale of the hydrophobic surface and of attractive interactions on…

统计力学 · 物理学 2007-05-23 Manoj V. Athawale , Gaurav Goel , Tuhin Ghosh , Thomas M. Truskett , Shekhar Garde

Water/solid interfaces are relevant to a broad range of physicochemical phenomena and technological processes such as corrosion, lubrication, heterogeneous catalysis and electrochemistry. Although many fields have contributed to rapid…

材料科学 · 物理学 2013-01-31 Javier Carrasco , Andrew Hodgson , Angelos Michaelides

We study the structure and dynamics of liquid water in contact with Pd and Au (111) surfaces using \emph{ab initio} molecular dynamics simulations with and without van der Waals interactions. Our results show that the structure of water at…

化学物理 · 物理学 2014-03-27 Luana S. Pedroza , Adrien Poissier , M. -V. Fernández-Serra

We present a study of the solvation properties of model aqueous electrode interfaces. The exposed electrodes we study strongly bind water and have closed packed crystalline surfaces, which template an ordered water adlayer adjacent to the…

统计力学 · 物理学 2015-06-11 David T. Limmer , Adam P. Willard , Paul A. Madden , David Chandler

The structure of liquid water at ambient conditions is studied in ab initio molecular dynamics simulations using van der Waals (vdW) density-functional theory, i.e. using the new exchange-correlation functionals optPBE-vdW and vdW-DF2.…

In a previous study (Comp. Phys. Com.(2005) Vol.169, 139-143), we clarified the dependence of the phase structure on the hydrophilicity of an amphiphilic molecule by varying the interaction potential between the hydrophilic molecule and…

软凝聚态物质 · 物理学 2009-11-11 Hiroaki Nakamura , Yuichi Tamura

The understanding of geochemical interactions between H2 and geofluids is of great importance for underground H2 storage but requires further study. We report the first investigation on the three-phase fluid mixture containing H2, H2O, and…

化学物理 · 物理学 2023-07-31 Yafan Yang , Jingyu Wan , Jingfa Li , Guangsi Zhao , Xiangyu Shang

The results of molecular dynamics simulations of the properties of water in an aqueous ionic solution close to an interface with a model metallic electrode are described. In the simulations the electrode behaves as an ideally polarizable…

统计力学 · 物理学 2014-09-09 Adam P. Willard , Stewart K. Reed , Paul A. Madden , David Chandler

Quantitative description of reaction mechanisms in aqueous phase electrochemistry requires experimental characterization of local water structure at the electrode/aqueous interface and its evolution with changing potential. Gaining such…

化学物理 · 物理学 2017-11-07 Yujin Tong , François Lapointe , Matin Thämer , Martin Wolf , R. Kramer Campen

The effect of vacancy and water adsorption on the electronic structure of semiconducting 2D trichalcogenide material CrPX$_3$ (X: S, Se) is studied using state-of-the-art density functional theory (DFT) approach. It is found that chalcogen…

材料科学 · 物理学 2021-12-24 Sifan Xu , Zhicheng Wu , Yuriy Dedkov , Elena Voloshina

Water adsorption on silicate surfaces is a critical yet poorly understood process relevant to, e.g., mineral weathering and cement hydration. This study investigates the structure of water overlayers on a model calcium silicate, the…

The organization of water molecules and ions between charged mineral surfaces determines the stability of colloidal suspensions and the strength of phase-separated particulate gels. In this article we assemble a density functional that…

软凝聚态物质 · 物理学 2024-05-15 Thomas Petersen

Molecular dynamics simulations are used to study the occupancy and flow of water through nanotubes comprised of hydrophobic and hydrophilic atoms, which are arranged on a honeycomb lattice to mimic functionalized carbon nanotubes (CNTs). We…

软凝聚态物质 · 物理学 2015-03-13 Ian Moskowitz , Mark A. Snyder , Jeetain Mittal

Traces of water can profoundly alter the dielectric response of functional oxides, yet such effects have remained largely unrecognized in systems where colossal dielectric behaviour has been widely reported. Here, we investigate the impact…

材料科学 · 物理学 2026-03-26 Subir Majumder , Gilad Orr , Paul Ben-Ishai

Diamondoids are a unique form of carbon nanostructure best described as hydrogen-terminated diamond molecules. Their diamond-cage structures and tetrahedral sp3 hybrid bonding create new possibilities for tuning electronic band gaps,…

This study utilizes molecular dynamics simulations to scrutinize the influence of type and volume fraction of nanoparticle on the density of nanofluids, i.e. silver (as a hydrophilic case) and titanium dioxide (as a hydrophobic case)…

应用物理 · 物理学 2021-05-20 M. M. Heyhat , M. Abbasi , A. Rajabpour

Short-range correlations in electrolyte solutions lead to oscillatory profiles of water polarization and ionic concentration at electrode-electrolyte interfaces. The recently developed density-potential-polarization functional theory…

化学物理 · 物理学 2026-03-23 Mengke Zhang , Jun Huang