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The permeation, rejection, and transport of electrolytes in water-filled nanopores are critical to ion current gating and desalinalion processes in synthetic porous membranes and the functions of biological ion channels. Mile the effects of…

统计力学 · 物理学 2008-04-29 Kevin Leung

Mathematically modeling complex transport phenomena at the molecular level can be a powerful tool for identifying transport mechanisms and predicting macroscopic properties. We use two different stochastic time series models, parameterized…

软凝聚态物质 · 物理学 2020-09-11 Benjamin J. Coscia , Michael R. Shirts

Liquids under confinement differ in behavior from their bulk counterparts and can acquire properties that are specific to the confined phase and linked to the nature and structure of the host matrix. While confined liquid water is not a new…

材料科学 · 物理学 2020-07-22 François-Xavier Coudert

Electrokinetic flows of an aqueous NaCl solution in nanochannels with negatively charged surfaces are studied using molecular dynamics (MD) simulations. The four transport coefficients that characterise the response to weak electric and…

化学物理 · 物理学 2014-06-05 Hiroaki Yoshida , Hideyuki Mizuno , Tomoyuki Kinjo , Hitoshi Washizu , Jean-Louis Barrat

Molten salts are high-temperature ionic liquids whose unique combination of strong Coulombic interactions, large polarizabilities, and high ionic conductivities makes them central to energy storage, metallurgy, and nuclear technology.…

化学物理 · 物理学 2025-09-11 Harender S. Dhattarwal , Richard C. Remsing

Industry uses various solvents in the processes of refrigeration and ventilation. Among them, the Ionic liquids (ILs) as the relatively new solvents, are known for their proven eco-friendly characteristics. In this research, a comprehensive…

软凝聚态物质 · 物理学 2020-03-16 Shahaboddin Shamshirband , Narjes Nabipour , Masoud Hadipoor , Alireza Baghban , Amir Mosavi

We analyze the AC electro-osmotic motion of a 1:1 aqueous solution, taking into account the difference in mobilities and diffusion coefficients between positive and negative ions. This model serves to understand the behavior of common…

流体动力学 · 物理学 2008-03-10 Antonio Gonzalez , Antonio Ramos , Pablo Garcia-Sanchez , Antonio Castellanos

It has been recently shown that a colloidal monolayer, e.g., formed at a fluid interface or by means of a suitable confining potential, exhibits anomalous collective diffusion. This is a consequence of the hydrodynamic interactions mediated…

软凝聚态物质 · 物理学 2017-04-05 Johannes Bleibel , Alvaro Domínguez , Martin Oettel

Dissolved ions can alter the local permittivity of water, nevertheless most theories and simulations ignore this fact. We present a novel algorithm for treating spatial and temporal variations in the permittivity and use it to measure the…

软凝聚态物质 · 物理学 2015-09-15 Florian Fahrenberger , Owen A. Hickey , Jens Smiatek , Christian Holm

We have developed a poly(dimethylsiloxane) (PDMS) microfluidic chip to study the directional drying of a colloidal dispersion confined in a channel. Our measurements on a dispersion of silica nanoparticles once again revealed the…

软凝聚态物质 · 物理学 2024-01-11 Hrishikesh Pingulkar , Sonia Maréchal , Jean-Baptiste Salmon

The alkali metal ions in aqueous electrolyte solutions have strong influence on the surrounding network structure of water formed through hydrogen bonds. The extent of ionic perturbation to the structure of water depends on the nature of…

软凝聚态物质 · 物理学 2019-09-24 Sudakshina Roy , Barnana Pal

Molecular dynamics simulations are used to examine the relationship between water-like anomalies and the liquid-liquid critical point in a family of model fluids with multi-Gaussian, core-softened pair interactions. The core-softened pair…

软凝聚态物质 · 物理学 2015-05-27 Evy Salcedo , Alan B. de Oliveira , Ney M. Barraz , Charusita Chakravarty , Marcia C. Barbosa

We use molecular dynamics simulations to study the behavior of supercooled water subject to different stimuli from a diluted azobenzene hydrophobic probe. When the molecular motor does not fold, it acts as a passive probe, modifying the…

软凝聚态物质 · 物理学 2020-01-14 V. Teboul , G. Rajonson

Lithium chloride LiCl is widely used as a prototype system to study the strongly dissociated 1-1 electrolyte solution. Here, we combined experimental measurements and classical molecular dynamics simulations to study the ion conduction in…

软凝聚态物质 · 物理学 2019-05-14 Are Yllö , Chao Zhang

In partially ionised plasmas, the magnetic field can become decoupled from the neutral gas and diffuse through it in a process known as ambipolar diffusion. Although ambipolar diffusion has been implemented in several grid codes, we here…

太阳与恒星天体物理 · 物理学 2015-06-22 James Wurster , Daniel J. Price , Ben A. Ayliffe

One of the most promising applications in nanoscience is the design of new materials to improve water permeability and selectivity of nanoporous membranes. Understanding the molecular architecture behind these fascinating structures and how…

软凝聚态物质 · 物理学 2021-09-10 João P. K. Abal , Rodrigo F. Dillenburg , Mateus H. Köhler , Marcia C. Barbosa

Anion exchange membranes are used in alkaline fuel cells and offer a promising alternative to the more expensive proton exchange membrane fuel cells. However, hydroxide ion conductivity in anion exchange membranes is low, and the quest for…

软凝聚态物质 · 物理学 2024-04-16 Mohammed Al Otmi , Ping Lin , William Schertzer , Coray M. Colina , Rampi Ramprasad , Janani Sampath

We consider a coupled system of Navier Stokes, Maxwell Stefan and Poisson Boltzmann equations by incorporating the variation of dielectric constant, which governs the electro osmotic flow in nano channel, describing the evolution of the…

流体动力学 · 物理学 2016-02-24 Rajendra Padidhapu , Shahnaz Bathul , V. Brahmajirao

Over the past few decades the experimental literature has consistently reported observations of attraction between like-charged colloidal particles and macromolecules in solution. Examples include nucleic acids and colloidal particles in…

软凝聚态物质 · 物理学 2020-04-22 Alzbeta Kubincova , Philippe H. Hunenberger , Madhavi Krishnan

Nanoporous carbon-based supercapacitors store electricity through adsorption of ions from the electrolyte at the surface of the electrodes. Room temperature ionic liquids, which show the largest ion concentrations among organic liquid…