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Atomistic simulations have been performed to investigate the effect of aliphatic chain length in tetraalkylphosphonium cations on liquid morphologies, microscopic ionic structures and dynamical properties of tetraalkylphosphonium chloride…

Soft Condensed Matter · Physics 2017-12-13 Yong-Lei Wang , Bin Li , Sten Sarman , Aatto Laaksonen

Numerical experiments involving the interaction of two solitary waves of the ion acoustic plasma equations are described. An exact 2-soliton solution of the relevant KdV equation was fitted to the initial data, and good agreement was…

solv-int · Physics 2009-10-31 Yi Li , D. H. Sattinger

The ionization potential distributions of hydrated hydroxide and hydronium are computed with many-body approach for electron excitations with configurations generated by {\it ab initio} molecular dynamics. The experimental features are well…

Chemical Physics · Physics 2014-01-20 Charles W. Swartz , Xifan Wu

To comprehend the complexities of the ice-water interface, we perform a study that attempts to correlate the altered dynamics of water to its perturbed structure at, and due to, the interface. The deviation from bulk values of structural…

Soft Condensed Matter · Physics 2019-08-02 Saumyak Mukherjee , Sayantan Mondal , Biman Bagchi

It is generally assumed that hydrodynamics in dense polyelectrolyte (PE) solutions, such as semidilute PE solutions and PE complex coacervates, is heavily screened and inconsequential. Here, using mesoscale molecular dynamics that…

Soft Condensed Matter · Physics 2024-09-17 Shensheng Chen , Zhen-Gang Wang

The impact of mesoscale organization on dynamics and ion transport in binary ionic liquid mixtures is investigated by broadband dielectric spectroscopy, dynamic-mechanical spectroscopy, x-ray scattering, and molecular dynamics simulations.…

Soft Condensed Matter · Physics 2019-05-09 Tyler Cosby , Utkarsh Kapoor , Jindal K. Shah , Joshua Sangoro

In this work we examine the nucleation from NaCl aqueous solutions within nano-confined environments, employing enhanced sampling molecular dynamics simulations integrated with machine learning-derived reaction coordinates. Through our…

Chemical Physics · Physics 2024-08-26 Ruiyu Wang , Pratyush Tiwary

Water-in-Salt-Electrolytes (WiSEs) are an exciting class of concentrated electrolytes finding applications in energy storage devices because of their expanded electrochemical stability window, good conductivity and cation transference…

Solid-state ion conductors (SSICs) have emerged as a promising material class for electrochemical storage devices and novel compounds of this kind are continuously being discovered. High-throughout approaches that enable a rapid screening…

In this paper for the first time we report the results of molecular dynamics simulation of electrode/electrolyte interface of Li-O2 cathode under potential close to experimental values in 1M dimethyl sulfoxide (DMSO) solution of LiPF6 salt.…

Chemical Physics · Physics 2017-01-10 Artem Sergeev , Alexander Chertovich , Daniil Itkis , Anik Sen , Axel Gross , Alexei Khokhlov

We study the electrophoretic flow of suspensions of charged colloids with a mesoscopic method that allows to model generic experimental conditions. We show that for highly charged colloids their electrophoretic mobility increases…

Soft Condensed Matter · Physics 2015-05-28 Giovanni Giupponi , Ignacio Pagonabarraga

We present a study of the local structure of high pressure hydrogen around the liquid-liquid transition line based on results from the Coupled Electron-Ion Monte Carlo method. We report results for the Equation of State, for the radial…

Statistical Mechanics · Physics 2018-05-09 Carlo Pierleoni , Markus Holzmann , David M. Ceperley

The hydration structure of Ba^{2+} ion is important for understanding blocking mechanisms in potassium ion channels. Here, we combine statistical mechanical theory, ab initio molecular dynamics simulations, and electronic structure methods…

Chemical Physics · Physics 2014-11-13 Mangesh I. Chaudhari , Marielle Soniat , Susan B. Rempe

Progress in electrochemical applications of ionic liquids builds on an understanding of electrical double-layer. This computational study focuses on structure-determined quantities -- maximum packing density, potentials and capacitances --…

We present a theoretical study of the influence of the molecular geometry of the cation on the response of ionic liquid (IL) to confinement and mechanical strain. The so-called {\it tailed} model includes a large spherical anion and…

Soft Condensed Matter · Physics 2019-03-27 Miljan Dašić , Igor Stanković , Konstantinos Gkagkas

Lithium-salt-based deep eutectic solvents, where the only cation is Li+, are promising candidates as electrolytes in electrochemical energy-storage devices like batteries. We have performed broadband dielectric spectroscopy on three such…

Soft Condensed Matter · Physics 2022-06-13 A. Schulz , P. Lunkenheimer , A. Loidl

Molecular ions formed in cold hybrid ion-atom experiments may find interesting applications ranging from precision measurements to controlled chemical reactions. Here, we investigate electronic structure of the Sr$_2^+$ molecular ion, which…

Atomic Physics · Physics 2020-06-17 Michał Śmiałkowski , Tatiana Korona , Michał Tomza

The dynamics for molecule formation, relaxation, diffusion, and desorption on amorphous solid water is studied in a quantitative fashion. We aim at characterizing, at a quantitative level, the formation probability, stabilization, energy…

Chemical Physics · Physics 2024-03-27 Meenu Upadhyay , Markus Meuwly

Hydrogen bonding is essential in electron transfer processes at water-electrode interfaces. We study the impact of the H-bonding of water as a solvent molecule on real-time electron transfer dynamics across a Cs+-Cu(111) ion-metal interface…

Recent developments in molecular theories and simulation of ions and polar molecules in water are reviewed. The hydration of imidazole and imidazolium solutes is used to exemplify the theoretical issues. The treatment of long-ranged…

Chemical Physics · Physics 2016-09-28 Gerhard Hummer , Lawrence R. Pratt , Angel E. Garcia
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