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Molecular dynamics simulation is a prominent way of analyzing the dynamic properties of a system. The molecular dynamics simulation of diffusion, an important transport property, of dilute solution of cysteine in SPCE water at five…

Chemical Physics · Physics 2018-09-25 Hem Prasad Bhusal , Narayan Prasad Adhikari

The development of intense high-energy radiation sources and the improvement of techniques for detecting charged fragments have made possible experiments on multiple ionization of a molecule with registration of the momentum and charge of…

Surface effect of low-surface-tension contaminants accumulating at the evaporation surface can easily induce membrane wetting in the application of membrane distillation, especially in hypersaline scenarios. In this work, we propose a novel…

Chemical Physics · Physics 2023-12-25 Yanni Ma , Zehua Yu , Xifan Fu , Zhi Huang , Tenghui Qiu , Na Zhao , Huidong Liu , Kang Liu

In the aqueous-organic (containing dimethylformamide) dispersion of graphene oxide flakes with deposited thereon Ag-particles, under the action of light in visible range, apparently for the first time, the effect of sediment flotation was…

Mesoscale and Nanoscale Physics · Physics 2013-07-04 D. V. Vlasov , L. A. Apresyan , T. V. Vlasova

Direct simulation results for stationary gas transport through pure silica zeolite membranes (MFI, LTA and DDR types) are presented using a hybrid, non-equilibrium molecular dynamics simulation methodology introduced recently. The…

Soft Condensed Matter · Physics 2017-06-23 T. Kovács , S. Papp , T. Kristóf

The ability to tune charge storage properties of graphene oxide (GO) is of utmost importance for energy conversion applications. Here we show that electrochemical reduction of GO is highly sensitive to the cations present in the solution.…

Materials Science · Physics 2018-09-05 Dalibor Karačić , Selma Korać , Igor A. Pašti , Sanjin J. Gutić

Environmentally-benign high-performance graphene oxide (GO)/alginate-based absorbents were prepared to eliminate acridine orange selected as a typical dye. Characterizations demonstrated GO well encapsulated and its promotion of pore…

Materials Science · Physics 2013-11-11 Ling Sun , Bunshi Fugetsu

We present porous electrode theory for capacitive deionization (CDI) with electrodes containing nanoparticles that consist of a redox-active intercalation material. A geometry of a desalination cell is considered which consists of two…

Chemical Physics · Physics 2019-12-24 K. Singh , H. J. M. Bouwmeester , L. C. P. M de Smet , M. Z. Bazant , P. M. Biesheuvel

Water molecules confined between biological membranes exhibit a distinctive non-Gaussian displacement distribution, far different from bulk water. Here, we introduce a new transport equation for water molecules in the intermembrane space,…

Soft Condensed Matter · Physics 2024-04-19 Minho Lee , Euihyun Lee , Ji-Hyun Kim , Hyonseok Hwang , Minhaeng Cho , Jaeyoung Sung

The thermodynamic, kinetic and magnetic properties of the hydrogen monomer on doped graphene layers were studied by ab initio simulations. Electron doping was found to heighten the diffusion potential barrier, while hole doping lowers it.…

Materials Science · Physics 2011-08-17 Liang Feng Huang , Mei Yan Ni , Guo Ren Zhang , Wang Huai Zhou , Yong Gang Li , Xiao Hong Zheng , Zhi Zeng

Salt water is ubiquitous, playing crucial roles in geological and physiological processes. Despite centuries of investigations, whether or not water's structure is drastically changed by dissolved ions is still debated. Based on density…

Chemical Physics · Physics 2022-02-14 Chunyi Zhang , Shuwen Yue , Athanassios Z. Panagiotopoulos , Michael L. Klein , Xifan Wu

The low efficiency of commercially-used reverse osmosis (RO) membranes has been the main obstacle in seawater desalination application. Here, we report the auspicious performance, through molecular dynamics simulations, of a seawater…

Biological Physics · Physics 2021-03-12 Weifeng Li , Yanmei Yang , Hongcai Zhou , Xiaoming Zhang , Mingwen Zhao

Strong electric fields can accelerate molecular dissociation reactions. The phenomenon known as the Wien effect was previously observed using high-voltage electrolysis cells that produced fields of about 10^7 V m-1, sufficient to accelerate…

We use molecular dynamics simulation to study the exfoliation of graphene and fluorographene in molecular and ionic liquids, by performing computer experiments in which one layer of the 2D nanomaterial is peeled from a stack, in vacuum and…

Mesoscale and Nanoscale Physics · Physics 2018-02-07 Emilie Bordes , Joanna Szala-Bilnik , Agílio A. H. Pádua

The results of X-ray photoemission (XPS) and valence bands spectroscopy, optically stimulated electron emission (OSEE) measurements and density functional theory based modeling of graphene oxide (GO) placed on Cu via an electrophoretic…

Thermo-osmotic flows, generated by applying a thermal gradient along a liquid-solid interface, could be harnessed to convert waste heat into electricity. While this phenomenon has been known for almost a century, there is a crucial need to…

Soft Condensed Matter · Physics 2024-07-15 Mehdi Ouadfel , Samy Merabia , Yasutaka Yamaguchi , Laurent Joly

In order to separate a mixture of hydrogen ($H_2$) and carbon dioxide ($CO_2$) gases, we have proposed a new approach employing the graphdiyne-like membrane (GDY-H) using density functional theory (DFT) calculations and molecular dynamics…

Chemical Physics · Physics 2020-06-12 Parham Rezaee , Hamid Reza Naeij

The sensitivity of graphene to the surrounding environment is given by its {\pi} electrons, which are directly exposed to molecules in the ambient. The high sensitivity of graphene to the local environment has shown to be both advantageous…

Materials Science · Physics 2018-04-27 Christos Melios , Cristina E. Giusca , Vishal Panchal , Olga Kazakova

Formamide (NH2CHO) and methylamine (CH3NH2) are known to be the most abundant amine-containing molecules in many astrophysical environments. The presence of these molecules in the gas phase may result from thermal desorption of interstellar…

Astrophysics of Galaxies · Physics 2018-05-02 Henda Chaabouni , Stephan Diana , Thanh Nguyen , François Dulieu

Water is essential for almost every aspect of life on our planet and, unsurprisingly, its properties have been studied in great detail. However, disproportionately little remains known about the electrical properties of interfacial and…

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