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We report here a molecular dynamics simulation study on water and aqueous LiCl solutions confined in 1.6 nm cylindrical pores of silica to investigate a dynamical cross-over, observed earlier experimentally, wherein LiCl slows down confined…

Soft Condensed Matter · Physics 2025-04-10 Siddharth Gautam , Lukas Vlcek , Eugene Mamontov , David Cole

Water ice is abundant both astrophysically, for example in molecular clouds, and in planetary systems. The Kuiper belt objects, many satellites of the outer solar system, the nuclei of comets and some planetary rings are all known to be…

Astrophysics · Physics 2009-11-13 Weijun Zheng , David Jewitt , Ralf I. Kaiser

The phase behaviour of room-temperature ionic liquids (ILs) confined in disordered porous media is studied using a theoretical approach that combines an extension of scaled particle theory, Wertheim's thermodynamic perturbation theory, and…

Soft Condensed Matter · Physics 2025-03-12 T. Hvozd , T. Patsahan , O. Patsahan , Yu. Kalyuzhnyi , M. Holovko

Studying the freezing of saltwater on a molecular level is of fundamental importance for improving freeze desalination techniques. Here, we investigate the freezing process of NaCl solutions using a combination of x-ray diffraction and…

Chemical Physics · Physics 2020-04-22 Ifigeneia Tsironi , Daniel Schlesinger , Alexander Späh , Lars Eriksson , Mo Segad , Fivos Perakis

The distribution of ions at the air/water interface plays a decisive role in many natural processes. It is generally understood that polarizable ions with low charge density are surface-active, implying they sit on top of the water surface.…

Chemical Physics · Physics 2022-10-05 Yair Litman , Kuo-Yang Chiang , Takakazu Seki , Yuki Nagata , Mischa Bonn

We present results of molecular dynamics simulations on lithium metasilicate over a broad range of temperatures for which the silicate network is frozen in but the lithium ions can still be equilibrated. The lithium dynamics is studied via…

Disordered Systems and Neural Networks · Physics 2017-08-23 Andreas Heuer , Magnus Kunow , Michael Vogel , Radha D. Banhatti

The design and fabrication of extremely hydrate phobic Liquid Impregnated Surfaces (sometimes abbreviated as LIS) based on industrial material Aluminium Al6061 and industrially scalable low-cost method were carried out. A simple…

Fluid Dynamics · Physics 2023-09-06 Amit K Nayse , Abhishek Mund , Arindam Das

Mesoporous systems are ubiquitous in membrane science and applications due to their high internal surface area and tunable pore size. A new synthesis pathway of hydrolytic ionosilica films with mesopores formed by ionic liquid (IL)…

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

The structural and dynamical properties of four silicate liquids (silica, rhyolite, a model basalt and enstatite) are evaluated by ab initio molecular dynamics simulation using the density functional theory and are compared with classical…

Statistical Mechanics · Physics 2015-05-13 R. Vuilleumier , N. Sator , B. Guillot

Ionic liquids (ILs) feature a tailorable and wide range of structural, chemical and electronic properties that make this class of materials suitable to a broad variety of forefront applications in next-generation electronics. Yet, their…

Materials Science · Physics 2022-11-28 Irene Amiehe Essomba , Mauro Boero , Kerstin Falk , Guido Ori

Based on first-principles calculation we predict two new thermodynamically stable layered-phases of silicon, named as silicites, which exhibit strong directionality in the electronic and structural properties. As compared to silicon…

Mesoscale and Nanoscale Physics · Physics 2014-10-01 Seymur Cahangirov , V. Ongun Ozcelik , Angel Rubio , Salim Ciraci

Liquid electrolytes in batteries are typically treated as macroscopically homogeneous ionic transport media despite having complex chemical composition and atomistic solvation structures, leaving a knowledge gap of microstructural…

Natural minerals contain ions that become hydrated when they come into contact with water in vapor and liquid forms. Muscovite mica -- a common phyllosilicate with perfect cleavage planes -- is an ideal system to investigate the details of…

There is evidence to suggest that clathrate hydrates have a significant effect on the surface geology of icy bodies in the Solar System. However the aqueous environments believed to be present on these bodies are likely to be saline rather…

Earth and Planetary Astrophysics · Physics 2017-04-12 E. Safi , Stephen P. Thompson , Aneurin Evans , Sarah J. Day , C. A. Murray , J. E. Parker , A. R. Baker , J. M. Oliveira , J. Th. van Loon

High-entropy alloys (HEAs) with various promising applications have attracted significant interest. However, alloying immiscible metal elements while controlling the morphology and crystallinity remains extremely challenging. We report a…

Materials Science · Physics 2024-05-28 Qiubo Zhang , Yi Chen , Karen. C. Bustillo , Haimei Zheng

It is surprisingly difficult to freeze water. Almost all ice that forms under "mild" conditions (temperatures > -40 degrees Celsius) requires the presence of a nucleating agent - a solid particle that facilitates the freezing process - such…

Statistical Mechanics · Physics 2014-04-25 Stephen J. Cox , Zamaan Raza , Shawn M. Kathmann , Ben Slater , Angelos Michaelides

Water-in-salt electrolytes (WiSEs) are a class of super-concentrated electrolytes that have shown much promise in replacing organic electrolytes in lithium-ion batteries. At the extremely high salt concentrations of WiSEs, ionic association…

Interfacial behaviours in multiphase systems containing H2 are crucial to underground H2 storage but are not well understood. Molecular dynamics simulations were conducted to study interfacial properties of the H2O+H2 and…

Chemical Physics · Physics 2022-12-29 Yafan Yang , Arun Kumar Narayanan Nair , Weiwei Zhu , Shuxun Sang , Shuyu Sun

Ionic liquid crystals (ILCs) are anisotropic mesogenic molecules which carry charges and therefore combine properties of liquid crystals, e.g., the formation of mesophases, and of ionic liquids, such as low melting temperatures and tiny…

Soft Condensed Matter · Physics 2017-10-31 Hendrik Bartsch , Markus Bier , Siegfried Dietrich