Article
Chemistry, Physical
Artashes A. Khachatrian, Timur A. Mukhametzyanov, Dmitry G. Yakhvarov, Oleg G. Sinyashin, Bulat F. Garifullin, Ilnaz T. Rakipov, Diana A. Mironova, Vladimir A. Burilov, Boris N. Solomonov
Summary: The intermolecular interactions between ionic liquids and hen egg-white lysozyme (HEWL) were studied using spectral, thermodynamic, and computational methods. The results showed that the stability of HEWL is influenced by the proton acceptor ability of the ionic liquids. Furthermore, fluorescence and molecular docking data indicated a lack of strong binding between the studied ionic liquids and HEWL.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Rui Zhao, Xianzhen Xu, Zonghua Wang, Ye Zheng, Yu Zhou, Zhiwu Yu
Summary: The interactions and structural properties of a mixture of 1-ethyl-3-methylimidazolium bis(trifluoromethyl)sulfonylimide (EMIMTFSI) and 1-ethyl-3-methylimidazolium dicyanamide (EMIMDCA) were investigated. The study identified four complexes or clusters and found ubiquitous weak hydrogen bonding interactions between cations and anions. The main interaction sites were determined for the cations and anions. This research contributes to a better understanding of microstructures and molecular interactions in ionic liquid mixtures.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
William Gallonde, Corentin Poidevin, Felix Houard, Elsa Caytan, Vincent Dorcet, Arnaud Fihey, Kevin Bernot, Stephane Rigaut, Olivier Galangau
Summary: This article presents how the interplay between H-bonds and dispersive forces can be rebalanced to induce or prevent the generation of kinetic metastable states. The study shows that by favoring dispersive interactions and extending the aromatic content, the cooperative supramolecular polymerization of toluene bis-amide derivatives can be delayed by trapping the metastable inactive state. Proper molecular engineering can create new opportunities for kinetically metastable states in monomers undergoing cooperative supramolecular polymerizations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Yaqin Zhang, Xin Tan, Weilu Ding, Yanlei Wang, Hongyan He, Zhiwu Yu
Summary: Ionic liquids (ILs) are often used in combination with polar solvents to modify their properties, and this study investigated the micro-heterogeneity and H-bonding interactions between a hydroxyl-functionalized IL and acetonitrile. The mixtures deviated from ideal behavior due to the newly formed H-bonding interactions, highlighting the importance of understanding the properties of IL-solvent mixtures for various applications.
Article
Chemistry, Physical
Ksenia S. Egorova, Marina M. Seitkalieva, Alexey S. Kashin, Evgeniy G. Gordeev, Anna V. Vavina, Alexandra V. Posvyatenko, Valentine P. Ananikov
Summary: This study investigated the cytotoxicity of chemically relevant imidazolium PILs with different alkyl side chains and compared it with aprotic analogues. The results highlighted the role of anion type in determining the cytotoxicity of ILs with short alkyl side chains. Even low-toxic PILs showed harmful effects on eukaryotic cells when used as cryopreservation agents, and the studied IL/water mixtures tended to form simple solid hydrates due to the weak amphiphilic properties of imidazolium cations with short alkyl side chains.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Medicine, Research & Experimental
Degong Yang, Chao Liu, Huiqing Piao, Peng Quan, Liang Fang
Summary: This study aimed to increase drug loading in pressure-sensitive adhesive by utilizing a novel drug-ionic liquid strategy and explored the underlying molecular mechanism. Results showed that the synergistic effect of strong ionic hydrogen bonding and normal hydrogen bonding led to a significant increase in drug loading and high drug release percentage even at high drug loading.
MOLECULAR PHARMACEUTICS
(2021)
Article
Polymer Science
Biao Zhang, Guillaume Sudre, Guilhem Quintard, Anatoli Serghei, Julien Bernard, Etienne Fleury, Aurelia Charlot
Summary: This study mixed RAFT-made poly(ionic liquid) chains with an ionic liquid, leading to homogeneous and transparent solutions due to similarities in structure and polarity. Rheology investigation showed that the solution's viscoelastic properties can be finely tuned by adjusting the chain molar mass and concentration. The high ionic conductivity and multi-scale local homogeneity of the PIL/IL solutions were confirmed through X-ray scattering experiments and microscopy analysis.
Article
Chemistry, Multidisciplinary
Jun Zhang, Zhanying Chen, Yan Zhang, Shengyi Dong, Yufang Chen, Shiguo Zhang
Summary: By introducing alkoxy moieties into poly(ionic liquid)s, highly efficient adhesives with strong hydrogen bonding interactions can be designed, exhibiting excellent adhesive properties on various substrates. Furthermore, photosensitive or electronically conductive composite adhesives can be fabricated by utilizing the compatibility between ionic liquids and carbon nanotubes or silver nanofibers.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
C. Amsaraj, R. Bharathikannan, P. Muthuraja, M. Rajkumar
Summary: Studying non-covalent interactions is crucial in supramolecular chemistry. Researchers synthesized a proton transfer molecular salt and investigated its supramolecular architecture using single crystal X-ray diffraction. The results showed that the molecule is stabilized by strong hydrogen bonds and other non-covalent interactions, with C-H···π stacking interactions influencing hydrogen bonding significantly.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Engineering, Chemical
Dongmei Xu, Shanshan He, Chengyi Yuan, Lijie Peng, Wenyang Fan, Huiwen Huang, Jun Gao, Yinglong Wang
Summary: In this study, liquid-liquid extraction was used to separate the mixture of IPAC and IPA, with three ionic liquids demonstrated as effective extractants, particularly [Bmim] [Hi(2)PO(4)]. The experimental data was fitted using the NRTL model to optimize the separation process for industrial applications.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Biochemistry & Molecular Biology
Bilal Ghafoor, Henri Stephan Schrekker, Sandro Campos Amico
Summary: This study assessed the use of ionic liquids (ILs) to modify the surface of carbon fiber (CF) and impart multifunctional characteristics to it. The results showed that IL-treated CF exhibited reduced contact angle and increased interfacial shear strength, as well as increased crystallite size and decreased electrical resistivity.
Article
Chemistry, Physical
Jilong Gu, Jie Luo, Jie Yang, Suai Tan, Caihong Wang, Yong Wu
Summary: The dynamic self-assembly of liquid crystals promotes the formation of hydrogen bond networks, which are crucial for anhydrous proton conduction. By synthesizing protic 1-alkyl-3H-imidazolium hydrogen sulfates with different alkyl chain lengths, liquid crystals with inherently exchangeable protons for proton conduction are achieved.
Article
Biochemistry & Molecular Biology
Yanni Wang, Chaowu Dai, Wei Huang, Tingting Ni, Jianping Cao, Jiangmei Pang, Huining Wei, Chaojie Wang
Summary: The mechanism of action of ionic liquids on nucleobase's structure and properties is still limited. This study investigates the binding model of the 1-alkyl-3-methylimidazolium bromide ionic liquids to thymine in water and microhydrated environments. The results show differences in stability and cooperativity of hydrogen bonding and pi-pi(+) stacking in the growing ionic clusters. This study provides important insights into the mechanism of action of ionic liquids.
Article
Energy & Fuels
Zhiwen Ma, Tao Lu, Yali Pan, Yupeng Yuan, Yingqiang Sun
Summary: This study investigates the effect of alkyl chain length of cations in ionic liquids (ILs) on in-situ transesterification (IST) of microalgae. The results show that shorter alkyl chains of cations are favorable for cellulose extraction and biodiesel yield.
Article
Chemistry, Physical
Hong Chen, Zonghua Wang, Xianzhen Xu, Shida Gong, Yu Zhou
Summary: This study investigated the interactions between two types of ionic liquids and toluene through experiments and quantum chemical calculations, revealing the bonding modes and differences in interaction strengths. The results provide theoretical insights into the separation mechanism for capturing volatile organic compounds.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Frederik Philippi, Daniel Rauber, Kira Lieberkind Eliasen, Nathalie Bouscharain, Kristine Niss, Christopher W. M. Kay, Tom Welton
Summary: The optimization of viscosity in room temperature ionic liquids must consider both coulombic compaction and charge network interactions, as revealed by comparing the viscosity of charged and uncharged molecular mimics.
Article
Chemistry, Physical
Yongji Guan, Ryan Clark, Frederik Philippi, Xiaoping Zhang, Tom Welton
Summary: This study investigated the structure and dynamics changes of ionic liquids under mass-related and electric fields using molecular dynamics simulations. The results showed that both fields caused the expansion and deformation of ion cages, leading to a transformation of the structure and faster self-diffusion in the direction of the applied force. Electric fields reoriented cations and promoted faster diffusion, while mass-related fields had a lesser effect on anion conformer equilibrium. These findings contribute to understanding how ions adapt to external perturbations and the application of ionic liquids as electrolytes.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
O. Palumbo, A. Paolone, D. Rauber, C. W. M. Kay, F. Philippi, T. Welton
Summary: Mechanical spectroscopy measurements were conducted on ionic liquids with different cations and anions to analyze the relaxation processes. It was found that ILs with flexible anions exhibit distinct behavior in the liquid phase compared to ILs with rigid ions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Daniel Rauber, Frederik Philippi, Julian Becker, Josef Zapp, Bernd Morgenstern, Bjoern Kuttich, Tobias Kraus, Rolf Hempelmann, Patricia Hunt, Tom Welton, Christopher W. M. Kay
Summary: Ionic liquids are attractive liquid materials for advanced applications, and understanding the structure-property relations is crucial for targeted design. In this study, we prepared novel protic ionic liquids (PILs) with a guanidinium cation and different anions, and used various techniques to investigate their thermal, transport, and spectroscopic properties. The results provide insight into the influence of the anion and the ether substitution on the physical and spectroscopic properties of the PILs.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Younes K. J. Bejaoui, Frederik Philippi, Hans-Georg Stammler, Krzysztof Radacki, Ludwig Zapf, Nils Schopper, Kateryna Goloviznina, Kristina A. M. Maibom, Roland Graf, Jan A. P. Sprenger, Ruediger Bertermann, Holger Braunschweig, Tom Welton, Nikolai V. Ignat'ev, Maik Finze
Summary: In this study, room temperature ionic liquids (RTILs) with cyclic sulfonimide anions ncPFSI (ring size: n = 4-6) and various cations [EMIm](+), [BMIm](+), and [BMPL](+) were synthesized. Their solid-state structures were determined by single-crystal X-ray diffraction, and their physicochemical properties were assessed. The influence of the ring size of the cyclic sulfonimide anions on the properties of the ILs was revealed.
Article
Chemistry, Multidisciplinary
George M. Neville, Ana-Maria Dobre, Gavin J. Smith, Samantha Micciulla, Nick J. Brooks, Thomas Arnold, Tom Welton, Karen J. Edler
Summary: Mixtures of choline and geranic acid have been found to facilitate the transdermal delivery of larger pharmaceuticals, such as insulin. However, little is known about the mechanism of activity, hindering the efficient discovery of new materials. This study investigates the biophysical interactions between membrane-active deep eutectic solvents and ionic liquids with solid-supported model lipid bilayers using neutron reflectivity.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Talia A. Shmool, Laura K. Martin, Andreas Jirkas, Richard P. Matthews, Anna P. Constantinou, Devkee M. Vadukul, Theoni K. Georgiou, Francesco A. Aprile, Jason P. Hallett
Summary: We developed a rational approach for the development of stimuli-responsive ionogels with precise control over their features for pharmaceutical applications. By strategically integrating silk fibroin and biocompatible ionic liquids, we overcame the limitations of complex chemistry, high viscosity, poor biocompatibility, and low biodegradability. Our approach resulted in the formation of thermoresponsive ionogels with tunable properties and enhanced drug solubility. The development of these ionogels has significant implications for drug delivery applications.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Spyridon Koutsoukos, Jocasta Avila, Nicholas J. J. Brooks, Margarida Costa Gomes, Tom Welton
Summary: Understanding the structure-property relationship of ionic liquids is crucial for their applications. Studying a series of homobaric ionic liquids reveals the effects of specific chemical groups on overall interaction. This study focuses on ionic liquids with 12 total carbons and finds that different arrangements of carbons result in compounds with distinct properties. X-ray scattering is used to investigate the nanoscale ordering and its relation to macroscopic properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Daniel Schroeder, Frederik Philippi, Daniel Schroeder, Bernd Morgenstern, Andrew J. P. White, Marlon Jochum, Tom Welton, Christopher W. M. Kay
Summary: Traditional room temperature ionic liquids typically contain asymmetric organic cations, but the synthesis and purification of such cations are more demanding. This study introduces novel room temperature ionic liquids with formally symmetric cations and anions, achieved by incorporating ether-containing side chains that increase configurational entropy. The research challenges the long-standing paradigm that at least one asymmetric ion is required for ionic liquids to be molten at room temperature, and offers simpler design pathways for these materials.
Article
Chemistry, Physical
Julian B. Beckmann, Daniel Rauber, Frederik Philippi, Kateryna Goloviznina, Jordan A. Ward-Williams, Andy J. Sederman, Mick D. Mantle, Agilio Padua, Christopher W. M. Kay, Tom Welton, Lynn F. Gladden
Summary: Understanding the relationship between the molecular structure and properties of ionic liquids is crucial for practical applications. By using fast-field cycling and molecular dynamics simulations, we can explore the dynamics of ionic liquids and gain insight into their molecular mechanics. The results demonstrate that the curling of side chains is essential for the properties of ether-functionalized ionic liquids.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Multidisciplinary Sciences
Spyridon Koutsoukos, Julian Becker, Ana Dobre, Zhijie Fan, Farhana Othman, Frederik Philippi, Gavin J. Smith, Tom Welton
Summary: This article provides a guide to the synthetic practices of ionic liquids (ILs), highlighting the considerations in choosing the synthetic route and evaluating the advantages and disadvantages of each route.
NATURE REVIEWS METHODS PRIMERS
(2022)
Article
Chemistry, Multidisciplinary
Talia A. Shmool, Laura K. Martin, Richard P. Matthews, Jason P. Hallett
Summary: This study investigates the impact of ionic liquids (ILs) on protein aggregation propensity and thermodynamic stability, exploring three key variables influencing protein misfolding and finding that increasing ILs concentration can reduce protein aggregation propensity.
Article
Chemistry, Multidisciplinary
Frederik Philippi, Daniel Rauber, Oriele Palumbo, Kateryna Goloviznina, Jesse McDaniel, David Pugh, Sophia Suarez, Carla C. Fraenza, Agilio Padua, Christopher W. M. Kay, Tom Welton
Summary: In this study, the combination of experimental and computational techniques is used to investigate the impact of fluorination, flexibility, and mass on the transport properties of ionic liquids. The results show that fluorination and flexibility significantly affect properties like viscosity, while the influence of mass is negligible. It is also found that conformational flexibility plays a crucial role in the success of fluorination as a design element.
Article
Chemistry, Multidisciplinary
Coby J. Clarke, Husain Baaqel, Richard P. Matthews, Yiyan Chen, Kevin R. J. Lovelock, Jason P. Hallett, Peter Licence
Summary: Halometallate ionic liquids have unique properties that make them promising for industrial catalytic processes. This study provides a comprehensive list of thermal parameters to define temperature limits and prevent catalyst poisoning. Adjusting the structure of the ionic liquids can optimize catalysis, but it also affects their physical properties.
Article
Chemistry, Physical
Spyridon Koutsoukos, Frederik Philippi, Daniel Rauber, David Pugh, Christopher W. M. Kay, Tom Welton
Summary: This study investigates the structure-property relationships in a series of alkylimidazolium ionic liquids with similar molecular weight. It is found that rearranging the alkyl side chain or adding functional groups leads to distinct features in the resulting ILs. Theoretical calculations and experimental measurements provide insights into the minimum energy orientations for the cations and information on hydrogen bonding. Molecular dynamics simulations help interpret the experimental results and understand the impact of methylation on the properties of ILs.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Sergey Yu. Ketkov, Sheng-Yuan Tzeng, Elena A. Rychagova, Anton N. Lukoyanov, Wen-Bih Tzeng
Summary: Metallocenes, including methylcobaltocene, play important roles in various fields of chemistry. The ionization energy and vibrational structure of (Cp ')(Cp)Co can be influenced by introducing methyl substituents. The mass-analyzed threshold ionization spectrum and DFT calculations provide accurate information about the properties and transformations of (Cp ')(Cp)Co.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Review
Chemistry, Physical
Qifeng Mu, Jian Hu
Summary: Polymer mechanochemistry has experienced a renaissance due to the rapid development of mechanophores and principles governing mechanochemical transduction or material strengthening. It has not only provided fundamental guidelines for converting mechanical energy into chemical output, but also found applications in engineering and smart devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Da Hye Yang, Francesco Ricci, Fredrik L. Nordstrom, Na Li
Summary: Through systematic evaluation of the oiling-out behavior of procaine, we identified both stable and metastable liquid-liquid phase separation, and established phase diagrams to assist in rational selection of crystallization strategies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Vikki Anand Varma, Simmie Jaglan, Mohd Yasir Khan, Sujin B. Babu
Summary: Designing engineering structures like nanocages, shells, and containers through self-assembly of colloids is a challenging problem. This work proposes a simple model for the subunit, which leads to the formation of monodispersed spherical cages or containers. The model with only one control parameter can be used to design cages with the desired radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Hainan Jiang, Yaolong He, Xiaolin Li, Zhiyao Jin, Huijie Yu, Dawei Li
Summary: The cycling lifespan and coulombic efficiency of lithium-ion batteries are crucial for high C-rate applications. The Li-ion concentration plays a crucial role in determining the mechanical integrity and structural stability of electrodes. This study focuses on graphite as the working electrode and establishes an experimental system to investigate the mechanical properties of composite graphite electrode at different C-rates. Considering the effect of Li-ion concentration in stress analysis is found to be significant.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Zhiye Wang, Yunchuan Li, Mingjun Sun
Summary: This study investigates the influence of intramolecular pi-pi interactions on the electronic transport capabilities of molecules. By designing and analyzing three pi-conjugated molecules, the researchers observe that different pi-conjugated structures have varying effects on electron transport. The findings provide a theoretical foundation for designing single-molecule electronic devices with multiple electron channels based on intramolecular pi-pi interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Yuandong Xu, Haoyang Feng, Chaoyang Dong, Yuqing Yang, Meng Zhou, Yajun Wei, Hui Guo, Yaqing Wei, Jishan Su, Yingying Ben, Xia Zhang
Summary: Hollow MoS2 cubes and spheres were successfully synthesized using a one-step hydrothermal method with the hard template method. The hollow MoS2 cubes exhibited higher specific capacitance and energy density compared to the hollow MoS2 spheres. The symmetrical supercapacitors assembled with these hollow structures showed good performance and high capacity retention after multiple cycles. These findings suggest that controlling the pore structure and surface characteristics of MoS2 is crucial for enhancing its electrochemical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Miaomiao Zhang, Cunyuan Pei, Qiqi Xiang, Lintao Liu, Zhongxu Dai, Huijuan Ma, Shibing Ni
Summary: The design of a solid electrolyte interphase (SEI) plays a crucial role in improving the electrochemical performance of anode materials. In this study, lithium difluoro(oxalate)borate (LiDFOB) is used as an electrolyte additive to form a protective SEI film on Li3VO4 (LVO) anodes. The addition of LiDFOB results in a dense, uniform, stable, and LiF-richer SEI, which enhances the Li-ion storage kinetics. The generated SEI also prevents further decomposition of the electrolyte and maintains the morphology of LVO anodes during charge/discharge processes. This work demonstrates the effectiveness of LiDFOB as a multi-functional additive for LiPF6 electrolytes and provides insights into SEI construction for high-performance LVO anodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga
Summary: The atomic structure of the Ag(111)-p(4 x 4)-O phase was reexamined and two phases with the same periodicity were discovered. It was demonstrated that the accepted Ag6 model is incompatible with high-resolution oxygen-sensitive STM images.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
S. L. Romo-Avila, D. Marquez-Ruiz, R. A. Guirado-Lopez
Summary: In this study, we used density functional theory (DFT) calculations to investigate the interaction between model graphene oxide (GO) nanostructures and chlorine monoxide ClO. We aimed to understand the role of this highly oxidizing species in breaking C-C bonds and forming significant holes on GO sheets. Our results showed that C-C bonds in a single graphene oxide sheet can be broken through a simple mechanism involving the dissociation of two chemically attached ClO molecules. The formation of carbonyl groups and holes on the GO surface was also observed. This study provides important insights into the degradation of carbon nanotubes and the stability of GO during the myeloperoxidase (MPO) catalytic cycle.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Alberto Garcia-Fernandez, Birgit Kammlander, Stefania Riva, Hakan Rensmo, Ute B. Cappel
Summary: In this study, the X-ray stability of five different lead halide perovskite compositions (MAPbI3, MAPbCl3, MAPbBr3, FAPbBr3, CsPbBr3) was investigated using photoelectron spectroscopy. Different degradation mechanisms and resistance to X-ray were observed depending on the crystal composition. Overall, perovskite compositions based on the MA+ cation were found to be less stable than those based on FA+ or Cs+. Metallic lead formation was most easily observed in the chloride perovskite, followed by bromide, and very little in MAPbI3. Multiple degradation processes were identified for the bromide compositions, including ion migration, formation of volatile and solid products, as well as metallic lead. CsBr was formed as a solid degradation product on the surface of CsPbBr3.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Timofei Rostilov, Vadim Ziborov, Alexander Dolgoborodov, Mikhail Kuskov
Summary: The shock-loading behavior of nanomaterials is investigated in this study. It is found that shock compaction waves exhibit a distinct two-step structure, with the formation of faster precursor waves that travel ahead of the main compaction waves. The complexity of the shock Hugoniot curve of the tested nanomaterial is described, and the effect of initial porosity on the compressed states is demonstrated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Sergey S. Nikitin, Alexander D. Koryakov, Elizaveta A. Antipinskaya, Alexey A. Markov, Mikhail V. Patrakeev
Summary: The stability of La1/3Sr2/3Fe1-xMnxO3-delta, a perovskite-type oxide, under reducing conditions is dependent on the manganese content. Increasing the manganese content leads to a decrease in stability. The behavior of iron and manganese in the oxide shows distinct differences, which can be attributed to the difference in the enthalpy of oxidation reactions. Additionally, the change in the La/Sr ratio affects the concentration of iron and manganese ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Mosayeb Naseri, Shirin Amirian, Mehrdad Faraji, Mohammad Abdur Rashid, Maicon Pierre Lourenco, Venkataraman Thangadurai, D. R. Salahub
Summary: Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3, this study assessed the structural stability and investigated the electronic, optical, and thermoelectric properties of a group of two-dimensional perovskite-type materials called perovskenes. The findings revealed that these materials are wide bandgap semiconductors with potential application in UV shielding. Moreover, they exhibit better electrical and thermal conductivity at high temperatures, enabling efficient power generation in thermoelectric devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)