Article
Chemistry, Physical
Jianzhuo Zhu, Zhuodan Zhao, Xingyuan Li, Yong Wei
Summary: This study used molecular dynamics simulations to investigate the attributes of concentrated ionic aqueous electrolytes, revealing the effects of different solute fractions on ion diffusion, hydration number, and water hydrogen bonding.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Danila Vasilchenko, Semen Berdyugin, Vladislav Komarov, Dmitriy Sheven, Boris Kolesov, Evgeny Filatov, Sergey Tkachev
Summary: The transformations of Pt complex species in concentrated NaOH solutions were studied using various methods. The reaction was found to occur in two steps, with the first step greatly accelerated under blue light irradiation. The structures of [Pt(OH)Cl5]2- and [Pt(OH)5Cl]2- were determined. A formation model for [Pt(OH)5Cl]2- was proposed.
INORGANIC CHEMISTRY
(2022)
Article
Polymer Science
Till Boehmer, Robin Horstmann, Jan Philipp Gabriel, Florian Pabst, Michael Vogel, Thomas Blochowicz
Summary: Research shows that solvent molecules in concentrated polymer solutions can have dynamics faster by several orders of magnitude compared to the polymer matrix, but some solvent still contributes to slow dynamics of macromolecules. Long-lived solvent-solvent cross-correlations cause these slow solvent contributions, explaining discrepancies found between results of different techniques.
Article
Physics, Multidisciplinary
Elizabeth G. Kelley, Emily E. Blick, Vivek M. Prabhu, Paul D. Butler, Michihiro Nagao
Summary: Lipid vesicles, commonly used as models for cell membranes and hosts for membrane protein studies, have higher volume fractions and affect the vesicle diffusion. These results have practical implications for scattering experiments and provide insights into interactions between lipid vesicles.
FRONTIERS IN PHYSICS
(2022)
Article
Chemistry, Applied
Huijia Mao, Zhijun Chen, Jie Li, Xueyang Zhai, Hongyan Li, Yangyang Wen, Jing Wang, Baoguo Sun
Summary: Hydrochloric acid plays a role in accelerating the degradation of long-amylose chains during the pyroconversion process, while having minimal impact on short-amylose chains. This accelerated degradation contributes to the formation of water-soluble pyrodextrins.
Article
Physics, Multidisciplinary
Yuriy Chushkin, Alessandro Gulotta, Felix Roosen-Runge, Antara Pal, Anna Stradner, Peter Schurtenberger
Summary: Studying the diffusion of proteins in cells is essential for understanding biological mechanisms. X-ray photon correlation spectroscopy (XPCS) is currently the only method to study long-time collective diffusion on the scale of proteins, but its application in biological systems has been limited due to radiation damage. In this study, a new approach using XPCS to measure cage relaxation in crowded α-crystallin solutions was applied, allowing for correction of radiation effects, obtaining missing information on long-time diffusion, and supporting the fundamental analogy between protein and colloid dynamical arrest.
PHYSICAL REVIEW LETTERS
(2022)
Article
Materials Science, Multidisciplinary
K. Frydrych, F. J. Dominguez-Gutierrez, M. J. Alava, S. Papanikolaou
Summary: Recently developed CSAs are chemically disordered materials with high concentrations of multiple elemental species randomly arranged on a crystalline lattice. They possess excellent physical properties, making them attractive for industries operating in extreme environments. This paper presents a continuum plasticity model for equiatomic five-element CSAs, which captures the inherent disorder associated with lattice distortions through a single parameter alpha. Molecular dynamics simulations of different CSAs are performed to validate the proposed model, which is then applied to nanoindentation tests for various crystallographic orientations using the finite element method.
MECHANICS OF MATERIALS
(2023)
Article
Chemistry, Physical
Pierre L. Stigliano, Nicolo Pianta, Simone Bonizzoni, Michele Mauri, Roberto Simonutti, Roberto Lorenzi, Barbara Vigani, Vittorio Berbenni, Silvia Rossi, Piercarlo Mustarelli, Riccardo Ruffo
Summary: Water-in-salt solutions with high salt concentration have unique features attracting attention in electrochemistry. However, systematic studies on the physical-chemical properties of highly concentrated KAC solutions are lacking. High-concentration KAC solutions exhibit good room temperature conductivity values and a large electrochemical potential window.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Metallurgy & Metallurgical Engineering
Dechao Xiao, Haitao Zhou, Kaihui Cui, Kun Huang
Summary: This study proposes a new thin-layer oil membrane (TOM) extraction strategy for enhanced mutual separation of Pd(II) and Pt(IV) chlorocomplex anions. It was found that Pd(II) can be preferentially extracted even in concentrated hydrochloric acid solutions. The competitive distribution of H+ and Cl- ions at the organic-aqueous interface plays a crucial role in enhancing the separation between Pd(II) and Pt(IV).
Article
Engineering, Chemical
Dongxue Tao, Haitao Zhou, Kaihui Cui, Linchen Xie, Kun Huang
Summary: The separation of Rh (III) and Fe (III) on the surface of concentrated hydrochloric acid was studied by thin-layer oil membrane (TOM) extraction, and a new phenomenon different from conventional extraction was found. TOM extraction prefers to identify hydrated Rh (III) anions rather than H3O+ ions at the interface due to a lower concentration of free hydrated hydrogen ions. TOM extraction can enhance the extraction of hydrated rhodium (III) anions by adjusting the thickness of the oil membrane and the flow rate of the aqueous phase, providing a new strategy for the selective recovery and separation of rhodium in concentrated hydrochloric acid leach solutions.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Physical
Kathleen T. Lauser, Amy L. Rueter, Michelle A. Calabrese
Summary: Limited studies have been conducted on extensional rheology in protein solutions due to volume constraints and measurement challenges. A small-volume DoS device was developed to measure capillary thinning of protein solutions, revealing different behaviors based on concentration and components.
Article
Energy & Fuels
Minghao Yi, Yuanping Cheng, Chenghao Wang, Zhenyang Wang, Biao Hu, Xinxin He
Summary: The hydrochloric acid treatment significantly reduced the content of minerals and volatile matter in coal, which increased the porosity and pore connectivity of coal. The role of minerals in pores of different sizes varied, affecting the evolution of coal pore structure.
Article
Chemistry, Physical
Kouhei Komori, Takamichi Terao
Summary: Recently, there has been a lot of interest in the properties of screening phenomena in concentrated electrolytes. Molecular dynamics simulations were conducted on an aqueous NaCl solution to investigate the cluster-size distribution of cations and anions. The cluster-size distribution showed power-law decay behavior at sufficiently high concentrations. Additionally, the fraction of isolated ions without pairing or clustering was studied. The study clarifies the statistical physics of cations and anions in concentrated electrolytes.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Engineering, Chemical
Haitao Zhou, Zhizhuo Yang, Xueqin Wu, Kun Huang
Summary: This study investigates the dissociation of species on the surface of concentrated hydrochloric acid and its impact on separation processes. The research discovers the different extraction behavior of easily hydrated anions and hardly hydrated anions in concentrated hydrochloric acid. The study also explores the relevant mechanisms of interfacial chemistry in concentrated hydrochloric acid.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Electrochemistry
Gustav Avall, Joachim Wallenstein, Gang Cheng, Kevin L. Gering, Patrik Johansson, Daniel P. Abraham
Summary: HCE based on LiPF6 in PC exhibits different characteristics in lithium-ion batteries compared to EC, with higher Li+ ion transference numbers but also increased impedance. As salt concentration increases, Li+ desolvation improves but hinders ion transport in HCEs.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Sergei Izvekov, Betsy M. Rice
JOURNAL OF CHEMICAL PHYSICS
(2015)
Article
Chemistry, Physical
Joshua D. Moore, Brian C. Barnes, Sergei Izvekov, Martin Lisal, Michael S. Sellers, DeCarlos E. Taylor, John K. Brennan
JOURNAL OF CHEMICAL PHYSICS
(2016)
Article
Chemistry, Physical
Patrick G. Lafond, Sergei Izvekov
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2016)
Article
Chemistry, Physical
Sergei Izvekov
JOURNAL OF CHEMICAL PHYSICS
(2017)
Article
Chemistry, Physical
Sergei Izvekov, N. Scott Weingarten, Edward F. C. Byrd
JOURNAL OF CHEMICAL PHYSICS
(2018)
Article
Chemistry, Physical
Patrick G. Lafond, Sergei Izvekov
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2018)
Article
Chemistry, Physical
Sergei Izvekov
JOURNAL OF CHEMICAL PHYSICS
(2019)
Article
Physics, Multidisciplinary
Ralph Chamberlin, Vladimiro Mujica, Sergei Izvekov, James P. Larentzos
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2020)
Meeting Abstract
Chemistry, Multidisciplinary
Sergey Izvekov, Patrick Lafond, John Brennan, James Larentzos
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Meeting Abstract
Chemistry, Multidisciplinary
Sergey Izvekov
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Meeting Abstract
Chemistry, Multidisciplinary
Patrick Lafond, Timothy Sirk, Jan Andzelm, Sergey Izvekov
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Meeting Abstract
Chemistry, Multidisciplinary
Sergey Izvekov, Edward Byrd, N. Scott Weingarten, Betsy Rice
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Article
Physics, Fluids & Plasmas
Sergei Izvekov
Meeting Abstract
Chemistry, Multidisciplinary
Sergey Izvekov, Betsy Rice
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2016)
Meeting Abstract
Chemistry, Multidisciplinary
Sergey Izvekov, Michael Sellers, Brian Barnes, James Larentzos, John Brennan, Betsy Rice
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2015)