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

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Low-energy structures of a hybrid system consisting of a polymer and an attractive nanowire substrate as well as the thermodynamics of the adsorption transition are studied by means of Monte Carlo computer simulations. Depending on…

软凝聚态物质 · 物理学 2011-07-05 Thomas Vogel , Michael Bachmann

We present results of molecular dynamics simulations of water confined in a silica pore. A cylindrical cavity is created inside a vitreous silica cell with geometry and size similar to the pores of real Vycor glass. The simulations are…

统计力学 · 物理学 2007-05-23 C. Hartnig , W. Witschel , E. Spohr , P. Gallo , M. A. Ricci , M. Rovere

The need to characterize ices coating dust grains in dense interstellar clouds arises from the importance of ice morphology in facilitating the diffusion and storage of radicals and reaction products in ices, a well-known place for the…

天体物理仪器与方法 · 物理学 2019-06-26 Jiao He , Aspen R. Clements , SM Emtiaz , Francis Toriello , Robin T. Garrod , Gianfranco Vidali

Understanding the history and evolution of small bodies, such as dust grains and comets, in planet-forming disks is very important to reveal the architectural laws responsible for the creation of planetary systems. These small bodies in…

星系天体物理 · 物理学 2018-10-10 Alexey Potapov , Cornelia Jäger , Thomas Henning

We consider the case of surface irradiation by a small number of femtosecond laser shots leading to the formation of surface ripples. To explain this effect, we propose a numerical model that accounts for the following processes: (i)…

等离子体物理 · 物理学 2011-10-04 Thibault J. Y. Derrien , Thierry Sarnet , Marc Sentis , Tatiana E. Itina

We study the vicinal surface with adsorption below the roughening temperature, using the restricted solid-on-solid model coupled with the Ising model. We calculate the step tension $\gamma$ and the step-interaction coefficient $B$ by…

统计力学 · 物理学 2007-05-23 Noriko Akutsu , Yasuhiro Akutsu , Takao Yamamoto

We use \textit{ab initio} molecular dynamics simulations to investigate the properties of the dry surface of pure silica and sodium silicate glasses. The surface layers are defined based on the atomic distributions along the direction…

材料科学 · 物理学 2021-05-12 Zhen Zhang , Walter Kob , Simona Ispas

Despite their technological relevance, a full microscopic understanding of glasses is still lacking. This applies even more to their surfaces whose properties largely differ from that of the bulk material. Here, we experimentally…

软凝聚态物质 · 物理学 2022-11-23 Li Tian , Clemens Bechinger

This work describes the behaviour of water molecules in 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid under nanoconfinement between graphene sheets. By means of molecular dynamics simulations, an adsorption of water molecules…

We present a simulation scheme to calculate defect formation free energies at a molecular crystal/water interface based on force-field molecular dynamics (MD) simulations. To this end we adopt and modify existing approaches to calculate…

材料科学 · 物理学 2015-06-22 Julian Schneider , Chen Zheng , Karsten Reuter

Using molecular dynamics simulations we study the temperature-density phase diagram of a simple model system of particles in two dimensions. In addition to translational degrees of freedom, each particle has two internal states and…

软凝聚态物质 · 物理学 2013-05-29 Chandana Mondal , Surajit Sengupta

We use molecular dynamics (MD) to simulate an unstable homogeneous mixture of binary fluids (AB), confined in a slit pore of width $D$. The pore walls are assumed to be flat and structureless, and attract one component of the mixture (A)…

无序系统与神经网络 · 物理学 2009-11-11 S. K. Das , S. Puri Jawaharlal , J. Horbach , Kurt Binder

Room temperature ionic liquids (ILs) at solid surfaces have been recognized for their significant interfacial properties in electrochemical and electronic devices. To ascertain the interface effects, we investigate dynamical and structural…

化学物理 · 物理学 2017-10-27 Tamisra Pal , Constantin Beck , Dominik Lessnich , Michael Vogel

Environmental molecular beam experiments are used to examine water interactions with liquid methanol films at temperatures from 170 K to 190 K. We find that water molecules with 0.32 eV incident kinetic energy are efficiently trapped by the…

Close to a solid surface, the properties of a fluid deviate significantly from their bulk values. In this context, we study the surface adsorption profiles of a symmetric binary liquid confined to a slit pore by means of molecular dynamics…

软凝聚态物质 · 物理学 2025-01-15 Sutapa Roy , Felix Höfling

Molecular simulation study of the heat capacity of metastable water between 100K and 300K Molecular simulations have been used to study the heat capacity of metastable liquid water at low temperature adsorbed on a smooth surface. These…

软凝聚态物质 · 物理学 2019-04-29 Joel Puibasset , P. Judeinstein , J. -M Zanotti

Plateaus in water adsorption isotherms on hydroxylated BeO surfaces suggest significant differences between the hydroxylated (100) and (001) surface structures and reactivities. Density functional theory structures and energies clarify…

化学物理 · 物理学 2007-05-23 Maria A. Gomez , Lawrence R. Pratt , Joel D. Kress , D. Asthagiri

We have developed a classical two- and three-body interaction potential to simulate the hydroxylated, natively oxidised Si surface in contact with water solutions, based on the combination and extension of the Stillinger-Weber potential and…

材料科学 · 物理学 2008-07-22 Daniel J. Cole , Mike C. Payne , Gabor Csanyi , S. Mark Spearing , L. Colombi Ciacchi

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

We employ a molecular dynamics (MD) study to explore pattern selection in binary fluid mixtures ($AB$) undergoing surface-directed spinodal decomposition on a chemically patterned amorphous substrate. We chose a checkerboard pattern with…

软凝聚态物质 · 物理学 2025-12-12 Syed Shuja Hasan Zaidi , Hema Teherpuria , Santosh Mogurampelly , Prabhat K. Jaiswal