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There is a long-standing question about the molecular configuration of interfacial water molecules in the proximity of solid surfaces, particularly carbon atoms which play a crucial role in electrochemistry and biology. In this study, the…

Statistical Mechanics · Physics 2021-03-03 Iman Ahmadabadi , Ali Esfandiar , Ali Hassanali , Mohammad Reza Ejtehadi

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…

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…

The Lifshitz theory of the van der Waals force is extended for the case of an atom (molecule) interacting with a plane surface of an uniaxial crystal or with a long solid cylinder or cylindrical shell made of isotropic material or uniaxial…

Quantum Physics · Physics 2009-11-11 E. V. Blagov , G. L. Klimchitskaya , V. M. Mostepanenko

Because of the dominant role of the surface of molecules and their individuality, molecules behave dis-tinctively in a confined space, which has far-reaching implications in many physical, chemical and bio-logical systems. Here, we…

Mesoscale and Nanoscale Physics · Physics 2014-04-29 DaeEung Lee , Gwanghyun Ahn , Sunmin Ryu

The interaction of interfacial water with graphitic carbon at the atomic scale is studied as a function of the hydrophobicity of epitaxial graphene. High resolution X-ray reflectivity shows that the graphene-water contact angle is…

The electronic structures of the manifold of potential energy surfaces generated in the lower energy range by the interaction of the MgH$^+$(X$^1\Sigma^+$) cationic molecule with Rb($^2$S), neutral atom are obtained over a broad range of…

Chemical Physics · Physics 2009-11-13 Mario Tacconi , Franco A. Gianturco

Surfaces are able to control physical-chemical processes in multi-component solution systems and, as such, find application in a wide range of technological devices. Understanding the structure, dynamics and thermodynamics of non-ideal…

Soft Condensed Matter · Physics 2023-09-29 Aaron R. Finney , Matteo Salvalaglio

We use a shell model to study the counterion interactions in a colloidal solution. In this shell model, the counterions are restricted to move inside a spherical region about their host colloidal particle. In particular, we apply Monte…

Soft Condensed Matter · Physics 2012-02-09 Chi-Lun Lee

We consider the wetting transition on a planar surface in contact with a semi-infinite fluid. In the classical approach, the surface is assumed to be solid, and when interaction between solid and fluid is sufficiently short-range, the…

Chemical Physics · Physics 2008-01-30 Henri Gouin

The physics of dynamic friction on water molecule contaminated surfaces is still poorly understood. In line with the growing interest in hydrophobic contact for industrial applications, this paper focuses on friction mechanisms in such…

Soft Condensed Matter · Physics 2022-06-24 Olivier Noël , Pierre-Emmanuel Mazeran , Igor Stanković

We directly observed molecular-thick aqueous salt-solution pancakes on a hydrophobic graphite surface under ambient conditions employing atomic force microscopy. This observation indicates the unexpected molecular-scale hydrophilicity of…

Soft Condensed Matter · Physics 2014-10-10 Guosheng Shi , Yue Shen , Jian Liu , Chunlei Wang , Ying Wang , Bo Song , Jun Hu , Haiping Fang

We theoretically study the size effect of water molecule clusters not only on electrostatic interaction between two charged surfaces in an aqueous electrolyte but also on electroosmotic transport in a nanofluidic channel. Applying a free…

Soft Condensed Matter · Physics 2022-02-10 Jun-Sik Sin , Yong-Man Jang , Chol-Ho Kim , Hyon-Chol Kim

In this thesis, the electrostatic interaction between two chemically identical colloids, both carrying constant surface potential is studied in the limit of short inter-particle separation at the interface of two immiscible fluids. Using an…

Soft Condensed Matter · Physics 2020-01-01 Rick Bebon

Sum frequency generation vibrational spectra of the water molecules at the NaF and KF aqueous solution surfaces showed significantly different spectral features and different concentration dependence. This result is the first direct…

Chemical Physics · Physics 2016-08-29 Ran-ran Feng , Hong-tao Bian , Yuan Guo , Hong-fei Wang*

We investigate numerically the interaction of a stream of granular particles with a resting obstacle in two dimensions. For the case of high stream velocity we find that the force acting on the obstacle is proportional to the square of the…

Statistical Mechanics · Physics 2007-05-23 Volkhard Buchholtz , Thorsten Poeschel

Soft interfaces can mediate interactions between particles bound to them. The force transmitted through the surface geometry on a particle may be expressed as a closed line integral of the surface stress tensor around that particle. This…

Soft Condensed Matter · Physics 2007-05-23 Martin Michael Mueller , Markus Deserno , Jemal Guven

It has been widely reported that as water contacts hydrophobic materials such as air or hydrocarbons (liquid or solid), the interfaces acquire a negative charge. It is not entirely clear whether this occurs due to the nature of water, or…

Soft Condensed Matter · Physics 2025-09-15 Yinfeng Xu , Himanshu Mishra

The interlayer gallery between two adjacent sheets of van der Waals materials is expected to modify properties of atoms and molecules confined at the atomic interfaces. Here, we directly image individual hydrogen atom intercalated between…

Mesoscale and Nanoscale Physics · Physics 2018-02-14 Wen-Xiao Wang , Yi-Wen Wei , Si-Yu Li , Xinqi Li , Xiaosong Wu , Ji Feng , Lin He

Most of the performances of electrochemical devices are governed by molecular processes taking place at the solution-electrode interfaces and molecular simulation are the main way to study these processes. Aqueous electrochemical systems…

Chemical Physics · Physics 2019-12-12 Guillaume Jeanmairet , Benjamin Rotenberg , Daniel Borgis , Mathieu Salanne