Article
Chemistry, Analytical
Joko Suwardy, Muzakkiy Putra Muhammad Akhir, Robi Kurniawan, Beni Rio Hermanto, Isa Anshori, Mohammad Hamzah Fauzi
Summary: This study utilizes numerically iterative models to investigate two processes in the pulsed laser deposition of a Y3Fe5O12 target. A 1D conduction heat model is employed to evaluate the temperature of the target under nanosecond pulse laser irradiation, considering the plasma shielding effect. Furthermore, a gas dynamics model is utilized to simulate the kinetic behavior of plasma plume expansion. The findings may be significant in achieving high-quality Y3Fe5O12 thin films.
Article
Physics, Multidisciplinary
Juan Manuel Rossello, Claus-Dieter Ohl
Summary: By pulsed laser irradiation with a collimated beam, temporally and spatially controlled nucleation of bulk nanobubbles in water was successfully demonstrated. This technique shows potential for testing theories on the existence of stable bulk nanobubbles.
PHYSICAL REVIEW LETTERS
(2021)
Article
Optics
S. Irimiciuc, J. More-Chevalier, S. Chertpalov, L. Fekete, M. Novotny, S. Havlova, M. Poupon, T. Zikmund, K. Kusova, J. Lancok
Summary: The passage discusses the monitoring of plasma during pulsed laser deposition (PLD) and analyzes the spatial distribution of individual elements and the formation process of LuO molecules through optical emission spectroscopy. By controlling doping and O-2 pressure, the energy of ejected particles can be adjusted, influencing the proportion of molecular and atomic domination in plasma energy. The resulting film properties show a strong correlation with the dynamical regime of the plasma and their structural properties.
APPLIED PHYSICS B-LASERS AND OPTICS
(2021)
Article
Chemistry, Multidisciplinary
Yasunori Tabayashi, Shota Sakaki, Naoto Koshizaki, Yuji Yamauchi, Yoshie Ishikawa
Summary: Pulsed laser melting in liquid (PLML) is a technique used to produce submicrometer spherical particles (SMPs). By monitoring transmittance measurements of monodisperse Au SMP colloidal solutions on a transient time scale, the temporal dependence of the thickness of thermally induced nanobubbles (TINBs) and the pressure within the bubble can be studied. These TINBs play a crucial role in promoting the formation of large particles via particle merging during laser heating in the PLML process.
Review
Materials Science, Multidisciplinary
Jan Kusinski, Olaf Czyz, Agnieszka Radziszewska, Piotr Dluzewski, Krzysztof Morawiec, Roman Ostrowski, Jerzy Morgiel
Summary: In this study, pulsed laser heating was used to create periodically distributed crystallized micro-areas in Fe80Si11R9 alloy. The resulting nanocrystallization significantly refined the magnetic domain structure and introduced additional distortion of the magnetic field lines in the sample.
MATERIALS CHARACTERIZATION
(2022)
Article
Chemistry, Physical
Marjorie Ladd-Parada, Katrin Amann-Winkel, Kyung Hwan Kim, Alexander Spah, Fivos Perakis, Harshad Pathak, Cheolhee Yang, Daniel Mariedahl, Tobias Eklund, Thomas J. Lane, Seonju You, Sangmin Jeong, Matthew Weston, Jae Hyuk Lee, Intae Eom, Minseok Kim, Jaeku Park, Sae Hwan Chun, Anders Nilsson
Summary: Using time-resolved wide-angle X-ray scattering, this study investigated the early stages of crystallization of supercooled water. It was found that the crystallizing phase is stacking disordered ice, with a small portion of hexagonal ice also observed. The final crystalline fraction in low-density amorphous ice was considerably lower than that in high-density amorphous ice.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Chemistry, Multidisciplinary
David A. Hastman, Eunkeu Oh, Joseph S. Melinger, Christopher M. Green, Aaron J. P. Thielemann, Igor L. Medintz, Sebastian A. Diaz
Summary: This study investigates the effect of plasmonic gold nanoparticle (AuNP) size on the rate of thermal release of single-stranded oligonucleotides under femtosecond (fs)-pulsed laser irradiation. Contrary to theoretical predictions, smaller AuNP diameters lead to faster DNA denaturation rates. Controlling for other factors yields the same result, suggesting that direct energy transfer may play a significant role as AuNPs decrease in size.
Article
Materials Science, Multidisciplinary
Yu-Xin Sang, Mu-Zheng Xiao, Zhi-Jing Zhang, Qing-Yan Fu
Summary: This study proposes a combined heating additive manufacturing process method to address the problems of low-power pulsed laser wire-feeding deposition, including unfused defects and cold crack defects. The results show that the combined heating process improves energy input, reduces temperature gradient, increases deposition channel and molten pool size, reduces surface roughness, and enhances interlayer remelting, leading to a more uniform macro shape contour.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Ceramics
Alexander W. Auner, Mark A. Burton, Lauren A. Nagel, Jonathan C. Crowhurst, David G. Weisz, Kimberly B. Knight
Summary: Different cerium oxides can be formed in high-temperature laser experiments by varying the availability of oxygen and the use of different laser heating methods. X-ray diffraction and Raman spectroscopy suggest the formation of a low structural order Ce2O3/CeO2 mixed structure using pulsed laser ablation in a 1% O2 atmosphere. Crystalline A-type Ce2O3 is formed near the point of laser impingement when using continuous wave laser heating in a 1% O2 environment. The Raman spectrum of Ce218O3 is reported for the first time through experiments conducted with 18O2.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Song Cai, Juan Wang, Qi Li, Wenhao Liu, Guoqi He, Zheying Zhang, Yi Ji
Summary: Plasma characteristic models were established in cylindrical coordinates based on the plasma expansion characteristics of pulsed laser processing. Experimental and calculation results verified the correctness of the models and provided theoretical guidance and process optimization for laser machining of materials.
Article
Chemistry, Multidisciplinary
Pablo Olleros-Rodriguez, Mara Strungaru, Sergiu Ruta, Paul-Iulian Gavriloaea, Adrian Gudin, Paolo Perna, Roy Chantrell, Oksana Chubykalo-Fesenko
Summary: By using femtosecond laser heating, we demonstrate the possibility of creating metastable skyrmion lattices in cobalt-based trilayers. The fast relaxation of magnon drops generated by high temperature ultrafast excitation leads to the acquisition and quenching of the skyrmion topological protection. These results provide insight into the dynamics of highly non-equilibrium spin excitations and open up additional pathways for skyrmion-based information technologies.
Article
Thermodynamics
Abhijit Paul, Anup Paul
Summary: This study compared the thermomechanical response of vascular tissues with and without nanoparticles during laser and ultrasound based thermotherapy. It was found that the pulse mode heating scheme provides tumor specific ablation with limited tissue temperature rise, sparing healthy tissues and minimizing nociceptive pain. The findings highlight the importance of different heat imposition techniques in nanoparticle assisted minimally invasive thermo-therapy of cancer.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2021)
Article
Multidisciplinary Sciences
James O'Connor, Fabiha Bushra Akbar, M. Shane Hutson, Andrea Page-McCaw
Summary: After tissue injury, cells exhibit distinct wound-healing behaviors to repair the damage. Laser ablation is used to create reproducible wounds in tissues for studying cellular damage and wound-induced signaling pathways.
Article
Mechanics
Yu Zhao, Dongmei Wan, Xiaoliang Chen, Xing Chao, Haitao Xu
Summary: The study explores the competition mechanism controlling the breaking of liquid jets, which is between the growth of initial disturbances and the disturbance caused by periodic heating, and identifies the range of laser pulsing frequency that produces uniform jet breaking. The stability analysis reveals the underlying mechanisms of liquid drop formation, which is confirmed by experimental results.
Article
Chemistry, Physical
Yuma Murata, Tomohiro Sasaki, Sanichiro Yoshida
Summary: This paper presents a non-destructive analysis of residual stress by visualizing deformation behaviors induced by local spot heating. The study found that the applied strain is reversible in the range of room temperature to approximately +10 degrees C. The relaxation behaviors of the applied strain under tensile stress conditions were evaluated using contact and non-contact methods.
Article
Chemistry, Physical
Qi Yang, Shinji Kajimoto, Yuki Kobayashi, Hirotsugu Hiramatsu, Takakazu Nakabayashi
Summary: Under the stimulation of nanosecond pulsed electric fields (nsPEFs), cells exhibit changes in volume, with expansion at high electric fields and shrinkage at low electric fields. The change in cell volume is correlated to alterations in intracellular Ca2+ concentration, and cell shrinkage is related to regulatory volume decrease through the efflux of ions and water induced by intracellular Ca2+ concentration increase.
JOURNAL OF PHYSICAL CHEMISTRY B
(2021)
Article
Chemistry, Physical
Motohiro Kasuya, Daiki Kubota, Sho Fujii, Kazue Kurihara
Summary: The study utilized the electrochemical surface forces apparatus (EC-SFA) to investigate electrochemical reactions in a nano-space, revealing a sudden current increase at short distances between electrodes in a confined electrolyte solution. This study demonstrated the potential of EC-SFA as a powerful tool for fundamental knowledge and insights into nano-confined electrochemical reactions with implications for sensors and energy devices.
FARADAY DISCUSSIONS
(2022)
Article
Chemistry, Multidisciplinary
Mathias Wolf, Shuichi Toyouchi, Peter Walke, Kazuki Umemoto, Akito Masuhara, Hiroshi Fukumura, Yuta Takano, Michio Yamada, Kenji Hirai, Eduard Fron, Hiroshi Uji-i
Summary: Organic materials have advantages in NLO applications, with Li@C-60 showing strong NLO potential. However, its low purity has been a hindrance in the fields of solar cells, electronics, and optics.
Article
Physics, Multidisciplinary
Hsin-hui Huang, Saulius Juodkazis, Eugene G. Gamaly, Takeshi Nagashima, Tetsu Yonezawa, Koji Hatanaka
Summary: By using a tilted micro-thin water flow and cross-linearly-polarised femtosecond laser pulses, fine control of the polarisation of terahertz (THz) emission is demonstrated. The intensity of THz emission is significantly enhanced with optimized double-pulse irradiation, resulting in improved photon-number-based efficiency.
COMMUNICATIONS PHYSICS
(2022)
Article
Chemistry, Physical
Yoshimasa Suzuki, Nobuaki Kunikata, Motohiro Kasuya, Hideshi Maki, Masaki Matsui, Kazue Kurihara, Minoru Mizuhata
Summary: Solution structures at solid-liquid interfaces are crucial in electrochemical reactions. This study investigated the behavior of a mixed solvent at the interface with SiO2 and found a long-range ordered structure. The interfacial structure influenced ionic conduction.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Kohei Yokosawa, Shinji Kajimoto, Daiki Shibata, Kunisato Kuroi, Tomohiro Konno, Takakazu Nakabayashi
Summary: This study quantified the change in protein concentration in protein droplets generated by liquid-liquid phase separation using Raman imaging. Small changes in protein concentration with variations in pH and salt concentration were observed, and it was shown that the concentration in the droplet decreases as the conditions become less favorable for droplet formation. The effect of exposure to 1,6-hexanediol on protein concentration in the droplet was also examined, and a model was proposed to explain the decrease in protein concentration and disappearance of the droplet under certain conditions.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Kiyoshi Urakawa, Motohiro Kasuya, Kiyoshi Kanie, Hiroyuki Shibata, Takenobu Sato, Takashi Ebata, Shigeru Suzuki
Summary: The thickness of aluminum oxide films formed on FeCo-V alloys doped with aluminum was found to increase with aluminum content and temperature. However, the electrical resistivity of the films did not correlate with their thickness. Micro-beam XPS analysis revealed that the oxide films were partially exfoliated in alloys with high aluminum content. The thickness of the oxide film and the amount of aluminum are crucial factors in controlling the formation of high resistivity aluminum oxide films in FeCo-V alloys.
E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY
(2022)
Article
Optics
Hsin-hui Huang, Takeshi Nagashima, Koji Hatanaka
Summary: THz emission in air is studied under the irradiation of tightly-focused femtosecond laser pulses. The intensity and polarization of THz emission are enhanced when the main pulse irradiates the shockwave front created by the pre-pulse irradiation. The asymmetry of the shockwave density profiles determines the polarization of THz emission.
Article
Chemistry, Physical
Masato Machida, Toshiki Sugimura, Shinji Kajimoto, Farsai Taemaitree, Yoshitaka Koseki, Hitoshi Kasai, Takakazu Nakabayashi
Summary: Nano-DDS, a drug delivery system using nanoparticles, is a promising tool to reduce adverse drug reactions and maximize drug efficiency. This study tracked the intracellular behavior of cholesterol-linked SN-38 (CLS) nanoparticles in cells using Raman and autofluorescence imaging. The results showed that CLS nanoparticles were taken into cells and converted into SN-38, which mainly localized in small regions in the cytoplasm. The combination of Raman and autofluorescence imaging provided insight into the intracellular behavior of prodrug nanoparticles and the cell response.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Chemistry, Physical
Kohei Yokosawa, Mitsuki Tsuruta, Shinji Kajimoto, Naoki Sugimoto, Daisuke Miyoshi, Takakazu Nakabayashi
Summary: Liquid-liquid phase separation (LLPS) plays a crucial role in the formation of highly concentrated droplets of biomolecules. In this study, we used Raman microscopy to quantitatively analyze the concentration of a G-quadruplex-forming RNA and an RGG peptide within a single droplet. Our results demonstrate that the concentration ratio of the two species remains constant despite variations in their initial concentration ratio, indicating that electrostatic interactions drive droplet formation. Furthermore, the G-quadruplex structure of the RNA is maintained inside the droplets.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Hiroyuki Yamakoshi, Daiki Shibata, Kazuki Bando, Shinji Kajimoto, Aki Kohyama, Syusuke Egoshi, Kosuke Dodo, Yoshiharu Iwabuchi, Mikiko Sodeoka, Katsumasa Fujita, Takakazu Nakabayashi
Summary: In this study, ratiometric Raman analysis of reversible thia-Michael reactions was achieved using alpha-cyanoacrylic acid (alpha CNA) derivatives. The smallest derivative, ThioRas, and its glutathione adduct were simultaneously detected in various subcellular locations by Raman microscopy.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Yoshimasa Suzuki, Nobuaki Kunikata, Motohiro Kasuya, Hideshi Maki, Masaki Matsui, Kazue Kurihara, Minoru Mizuhata
Summary: The behavior of a mixed solvent of propylene carbonate (PC)-1,2-dimethoxyethane (DME) at the interface with SiO2 was investigated. The interfacial structure affected ionic conduction and could be reduced by adding LiClO4.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Review
Urology & Nephrology
Jun-Ya Kaimori, Yusuke Sakaguchi, Sachio Kajimoto, Yuta Asahina, Tatsufumi Oka, Koki Hattori, Yohei Doi, Yoshitaka Isaka
Summary: Metabolic acidosis is a common complication of chronic kidney disease (CKD) and is associated with disease progression and functional impairments. Recent studies have highlighted the importance of considering blood pH and anion gap for diagnosing and treating metabolic acidosis in CKD patients. High anion gap acidosis has been identified as a prognostic factor, and there is evidence that it can be improved with specific treatments. Reevaluation of the clinical approach to diagnosing and treating metabolic acidosis in CKD may be necessary.
KIDNEY RESEARCH AND CLINICAL PRACTICE
(2022)
Article
Chemistry, Multidisciplinary
Bei Liu, Mochamad Januar, Jui-Ching Cheng, Koji Hatanaka, Hiroaki Misawa, Kou-Chen Liu
Summary: The article discusses the importance of matching the resonant wavelength of plasmonic nanoparticles with the emission band of organic materials for optimal plasmon-enhanced luminescence in OLEDs. It introduces a design strategy using AuxAg1-x alloy NPs to enable resonance tuning while preserving NP size. Bimetallic NPs, especially with x < 0.6, provide additional degrees of freedom for plasmon wavelength variation and offer benefits of higher scattering and more intense electric fields compared to monometallic NPs.
Article
Chemistry, Multidisciplinary
Kazuki Murakami, Shinji Kajimoto, Daiki Shibata, Kunisato Kuroi, Fumihiko Fujii, Takakazu Nakabayashi
Summary: The study demonstrated the LLPS of ataxin-3 associated with Machado-Joseph disease in an intracellular crowding environment mimicked by biopolymers and proposed a label-free quantification method using Raman microscopy. It successfully identified components present inside and outside a droplet, with water and protein detected inside droplets and crowding agents remaining outside. The protein concentration in a droplet was dependent on the crowding environment, highlighting the importance of considering protein concentration and intracellular environment in investigating LLPS.
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)