Article
Chemistry, Analytical
Haimin Li, Qianyu Zhang, Xueting Luo, Zhihao Yao, Yaqin Qu, Erjing Wang, Bingbing Jiang, Zhenpeng Qiu, Cao Li, Ziqiang Xu
Summary: This study developed a ratiometric analysis method for the activity of acetylcholinesterase (AChE) based on intrinsic dual-emissive fluorescent nano-materials. The method can serve as a biomarker of neurotoxicity and has the potential for early diagnosis and prognosis.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Wenjing Wang, Jing Wu, Yuxin Xing, Zonghua Wang
Summary: Red emissive carbon dots (BNCDs), based on 1,1'-binaphthyl-2,2'-diamine (BNDM) and citric acid as a carbon source, were prepared through a one-pot solvothermal method. The synthesized BNCDs have uniform size distribution, photobleaching resistance, and show emission performance that is independent of the excitation wavelength. Moreover, the BNCDs exhibit bright red emission in a composite film with polyvinyl alcohol (PVA) matrix and the optical behavior can be tuned by changing solvent polarity. Additionally, BNCDs can serve as a fluorescence sensor for highly sensitive quantitative detection of trace water in organic solvents and as a fluorescence sensor for detection of Fe3+ and F-.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Zhen Lin, Qi Zeng, Qian Deng, Wensong Yao, Haohua Deng, Xinhua Lin, Wei Chen
Summary: In this study, carbon dots (CDs) were synthesized using citric acid as a carbon source, resulting in undoped CDs with mimic enzyme activity. The synthesized CDs showed excellent cysteine oxidase-mimicking activity and were used to construct a fluorescent sensor for the detection of cysteine. This research expands the field of undoped carbon dots in the nanozyme application and provides a research foundation for the synthesis and design of carbon-based nanozymes.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Spectroscopy
Weiying Zhou, Zishan Sun, Jiaqi Fan, Wenjing Huang, Jiahui Zhang, Hongji Song, Liya Zhou, Jinqing Huang, Zhan-chao Wu, Xinguo Zhang
Summary: Novel carbon dots with both solution and solid-state emissions were obtained, showing potential applications in sensing and LED devices.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Chemistry, Multidisciplinary
Xiaokai Xu, Luoqi Mo, Wei Li, Yadong Li, Bingfu Lei, Xuejie Zhang, Jianle Zhuang, Chaofan Hu, Yingliang Liu
Summary: In this study, multicolor solid-state fluorescence carbon dots were successfully synthesized through a solvothermal reaction in acetic acid, enabling applications in white light LED devices and fingerprint detection.
CHINESE CHEMICAL LETTERS
(2021)
Article
Materials Science, Ceramics
Jiaqi Fan, Weiying Zhou, Jian Chen, Ruiyuan Liu, Qi Pang, Liya Zhou, Zhan-chao Wu, Xinguo Zhang
Summary: A novel solvent-dependent fluorescent CDs (R-CDs) were prepared by solvothermal method and showed multicolor emissions ranging from blue to red by tuning the solvents polarity. The highest quantum yield of 61.11% was achieved in R-CDs acetone solution with bright yellow emission at 565 nm. R-CDs were used as a quantitative fluorescent sensor for detecting water in different solvents, showing good linear relationship and accuracy.
CERAMICS INTERNATIONAL
(2023)
Review
Chemistry, Multidisciplinary
Jiang Fan, Lei Kang, Xu Cheng, Di Liu, Sufeng Zhang
Summary: This article reviewed the research progress of biomass-derived CDs as chemical, physical and biological sensors in recent years, studied their preparation processes and sensing abilities, and discussed the prospects and challenges of biomass-CDs sensors.
Article
Agricultural Engineering
Xinyan Hou, Jikun Xu, Pengfei Zhou, Lin Dai, Jiaming Zhang, Xiao Xiao, Chuntao Zhang, Kaifu Huo
Summary: In this study, a solvent-engineered method was proposed to synthesize multicolor carbon dots with distinct nanostructures and partially surface-functionalized domains. These carbon dots exhibited rapid and accurate fluorometric detection of metal ions including Fe3+, Ag+, Cu2+, and Al3+. The findings highlight the importance of lignin molecular state, quantum size, zeta potential, electrostatic, and cation-π interactions in determining the fluorescence properties and sensitivity to polar solvents. This research not only provides a scalable approach for nanoscale design using lignin, but also contributes to the development of multicolor carbon dots for specific metal-ion recognition.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Environmental
Yalan Xu, Chan Wang, Tao Jiang, Guoxia Ran, Qijun Song
Summary: This article introduces a method for detecting cadmium ions using orange-red emissive carbon dots as a fluorescence probe. The study found that the orange-red emissive carbon dots can specifically bind with cadmium ions, leading to aggregation induced enhanced emission with high sensitivity. This method can be used for intracellular cadmium ion imaging and has the potential to alleviate cadmium poison in living organisms.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Justin B. Domena, Ermin Celebic, Braulio C. L. B. Ferreira, Yiqun Zhou, Wei Zhang, Jiuyan Chen, M. Bartoli, A. Tagliaferro, Qiaxian Johnson, Bhanu P. S. Chauhan, Victor Paulino, Jean-Hubert Olivier, Roger M. Leblanc
Summary: In this study, a NIR emitting dye, p-toluenesulfonate (IR-813) was used as a model precursor to develop red emissive carbon dots (813-CD) with solvatochromic behavior. The emission peaks of 813-CD in water blue shifted as solvent polarity decreased. By increasing the nitrogen content with polyethyleneimine (PEI), the band gap energy of the CDs increased and the emission could reach as far as 776 nm. A CD nanocomposite polyvinylpyrrolidone (PVP) film was synthesized to investigate solid-state fluorescence. The CDs also showed electrochemical properties and could be used as doping agents for PVP film coatings.
Article
Chemistry, Multidisciplinary
Shuangshuang Wu, Huihui Shi, Wei Lu, Shuxin Wei, Hui Shang, Hao Liu, Muqing Si, Xiaoxia Le, Guangqiang Yin, Patrick Theato, Tao Chen
Summary: The study proposes the use of hydrophobic carbon dots to construct an aggregation-induced emission active glycol CDs polymer gel, which can be used for anisotropic bilayer soft actuators that undergo shape and color changes on water surfaces, leading to autonomous locomotion.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Multidisciplinary
Giorgio Speranza
Summary: Recent advances in nanomaterial design and synthesis have led to the development of robust sensing systems with superior analytical performance. Carbon-based sensors, known for their biocompatibility, sensitivity, selectivity, and low limits of detection, have been widely used for the detection of organic and inorganic molecules. Carbon nanomaterials, such as fullerenes, carbon onions, carbon quantum dots, nanodiamonds, carbon nanotubes, and graphene, have unique properties that make them ideal for sensing applications, showing promise for future developments.
Article
Optics
He Li, Hong-Gang Ye, Rui Cheng, Jiazhuang Guo, Zhi-Bin Liang, Ge Li, Qing Li, Cai-Feng Wang, Su Chen
Summary: The study presents a facile method for preparing red-emissive carbon dots for detecting veterinary drugs, utilizing the dual-emissive photoluminescence property. The carbon dots exhibit fast fluorescence response to several widely abused veterinary drugs and achieved low detection limits.
JOURNAL OF LUMINESCENCE
(2021)
Review
Chemistry, Multidisciplinary
Yuqian Liu, Fangyuan Liang, Jianglei Sun, Ran Sun, Chao Liu, Chao Deng, Farzad Seidi
Summary: This review summarizes the synthesis strategies and optical mechanisms of dual-emissive carbon dots (CDs), as well as their applications in biosensing, bioimaging, and photoelectronic devices. The challenges and perspectives in further promoting the development of dual-emissive CDs are also discussed.
Review
Chemistry, Inorganic & Nuclear
Theophile Niyitanga, Khursheed Ahmad, Archana Chaudhary, Haekyoung Kim
Summary: Carbon dots (CDs) are zero-dimensional carbon-based nanoparticles with exceptional catalytic activity, optical absorption capacity, and light trapping properties. They have a wide range of applications in bio-imaging, electrochemical sensors, biosensors, and photovoltaic cells. This mini review article discusses recent advances in the fabrication of CDs-based electrochemical sensors for hydrogen peroxide (H2O2) and provides insights into future directions and perspectives.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Yen-Linh Thi Ngo, Phi Luan Nguyen, Jayasmita Jana, Won Mook Choi, Jin Suk Chung, Seung Hyun Hur
Summary: A new strategy for sensing hydrogen peroxide (H2O2) and glucose using metal oxide-carbon dot hybrid structure was investigated. The sensing system showed high accuracy in detecting H2O2 and glucose and could be applied for on-site analysis of glucose without the use of a spectrometer.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Applied
Linlin Wang, Jayasmita Jana, Jin Suk Chung, Seung Hyun Hur
Summary: Water-soluble N-doped carbon dots (NCDs) were designed by hydrothermal treatment and chemical reactions, then passivated for dopamine (DA) quenching detection, showing low detection limit and wide linear range.
Article
Chemistry, Physical
Tran Van Phuc, Jayasmita Jana, Nivetha Ravi, Sung Gu Kang, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: This study presents a rational design of Ni/Co metal-organic framework (MOF) nanosheet array catalyst on CoO modified Ni foam substrate for efficient water splitting. The optimized NC-2@CoO/NF catalyst demonstrates excellent electrochemical performance with low overpotential and cell voltage, achieving overall water splitting at a much smaller voltage than commercial catalysts. The synergistic effects of Ni/Co-MOF and CoO/NF contribute to the outstanding performance and long-term stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Spectroscopy
Linlin Wang, Jayasmita Jana, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: Low-cost nitrogen and boron-doped carbon nanodots (CPAP-CDs) with high quantum yield were synthesized through a facile hydrothermal treatment. These CPAP-CDs showed wide absorption, strong fluorescence, and pH-dependent behavior, making them suitable for detecting nitrite ions. The method had a low detection limit, wide linear detection range, and was successfully applied to different water samples testing.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Energy & Fuels
Jayasmita Jana, Ravi Nivetha, Huynh Ngoc Diem, Tran Van Phuc, Sung Gu Kang, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: In this study, a ternary composite material was synthesized as an electrode material for water reduction under alkaline conditions. The study showed that the material has selective reactive sites, requires a significant overpotential to achieve the desired current density, and exhibits good reaction rate and stability.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Japandeep Kaur, Mainak Ganguly, Rodrigo Rangel-Alvardo, Devendra Pal, Ryan Hall, Parisa A. Ariya
Summary: Organic and inorganic emerging contaminants are widespread in the Earth's ecosystem. This study evaluated the ice nucleation efficiency of eight emerging contaminants, including synthetic antibiotics and hormones, under mixed-phase cloud conditions. It was found that gentamicin sulfate and daidzein exhibited the highest ice nucleation efficiency.
ACS EARTH AND SPACE CHEMISTRY
(2022)
Article
Engineering, Environmental
Yen-Linh Thi Ngo, K. C. Bhamu, Anastasiia Voronova, Jayasmita Jana, Sung Gu Kang, Jin Suk Chung, Won Mook Choi, Jong Hyun Jang, Seung Hyun Hur, Bora Seo
Summary: In this study, a high-density carbide-oxide heterostructure was successfully synthesized by using nano-sized carbon dots as carbon sources dispersed on tungsten oxide nanorods. The resulting tungsten carbide-oxide composite exhibited superior electrocatalytic activity with low overpotential and high current density in acidic media.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Jayasmita Jana, Tran Van Phuc, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: A carbon nanosphere-protected CuO/Co3O4 composite was synthesized and used as a cathode material for electrocatalytic seawater splitting. The composite showed excellent electrocatalytic activity and stability, making it a promising candidate for seawater electrocatalysis.
Review
Energy & Fuels
Ravi Nivetha, Sushant Sharma, Jayasmita Jana, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: Metal-organic frameworks (MOFs) are porous crystalline materials formed by coordination bonding between organic ligands and metal ions or clusters, and have attracted significant interest due to their high porosity, diverse structures, and controllable chemical composition. The focus has recently shifted to 2D transition-metal (TM)-based MOFs, which exhibit high aspect ratios and can be used to construct heterostructures with high electrical conductivity and abundant active sites. This review provides a comprehensive overview of the synthesis strategies, applications, and recent advances in energy conversion and storage of 2D TM-based MOFs and their composites/derivatives.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Chemistry, Physical
Jayasmita Jana, Tata Sanjay Kanna Sharma, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: In this study, iron-molybdenum composites with carbide and oxide functionalities were synthesized and their catalytic activities towards the electrolysis of water and urea were investigated. A 3D carbon nano-nest (CnN) was used as the carbide source and stabilizing agent. Different behavior was observed when the materials were used as electrode materials for water splitting and alkaline urea electrolysis. The reaction mechanism depended on the nature of the catalyst surface and constituents.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Environmental Sciences
P. Sharma, M. Ganguly
Summary: Diiminic Schiff bases (DSBs) have been synthesized and used to detect highly toxic metal ions as well as biological compounds in water through coinage metal-enhanced fluorescence (MEF). This method offers selectivity, sensitivity, and potential for designing sensing platforms for water pollutants detection.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Jayasmita Jana, Tata Sanjay Kanna Sharma, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: In recent years, the search for transition-metal-based materials for overall water splitting in the energy field research has gained attention. A series of late first-row transition-metal molybdates (TMMo) were studied for alkaline water splitting, where the materials were synthesized through a hydrothermal process. Among the molybdates, CoMo exhibited the best activity and stability, making it a potential commercial alternative electrocatalyst for overall water splitting.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Mamta Sahu, Mainak Ganguly, Ankita Doi
Summary: Silver nanoparticles were synthesized using alkaline salicylaldehyde (SL) in the presence of silver nitrate. The solution exhibited highly fluorescent properties with silver (0) acting as the metal-enhanced fluorophore. The fluorescence was selectively quenched by the addition of Fe3+ and this silver-enhanced fluorescence method was successfully used for the selective and sensitive detection of iron in various water sources.
Article
Chemistry, Multidisciplinary
Priyanka Sharma, Mainak Ganguly
Summary: The small molecule salicylaldehyde was used to enhance the fluorescence of copper. The fluorescence properties were studied under different physicochemical conditions. This fluorescence was applied to create a sensing platform for detecting H2O2 with different detection limits. Copper nanoparticles were impregnated in cotton fibers to remove H2O2, and the effectiveness was quantified using copper-enhanced fluorescence.
NEW JOURNAL OF CHEMISTRY
(2023)
Proceedings Paper
Computer Science, Artificial Intelligence
Ashis Sau, Abhijan Bhattacharyya, Madhurima Ganguly
Summary: This paper addresses the issue of inherent delay in cloud-centric architecture and proposes a novel WebRTC based signaling protocol for multi-user sessions. The system has been deployed in public cloud and its effectiveness is established through benchmarking against cloud-centric architecture in real-life field trials.
MOBILE AND UBIQUITOUS SYSTEMS: COMPUTING, NETWORKING AND SERVICES
(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)
