Article
Chemistry, Multidisciplinary
Zhezhe Wang, Yueting Lai, Jieyi Cai, Siyi Jia, Lin Lin, Zhuohong Feng, Zhiqiang Zheng, Rongrong Xie, Jiabing Li
Summary: A photo-responsive Si/TiO2/Ag heterostructure with high SERS activity was prepared and studied, showing great potential as a recyclable SERS-active substrate for practical trace detection applications at very low cost. The enhancement factor (EF) of the heterostructure was estimated to be 1.23 x 10(12) with good repeatability, and it could detect glyphosate (Gly) at concentrations as low as 0.1 ppb. The substrate also possessed UV cleaning performance for easy reuse.
Article
Optics
Xiao Luo, Weijian Liu, Changhao Chen, Guochen Jiang, Xinyu Hu, Hongjun Zhang, Minlin Zhong
Summary: This study presents a high sensitivity and high uniformity SERS substrate prepared by femtosecond laser ablation in Argon, which shows potential for detecting common food additives.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Spectroscopy
Dusan Hemzal, Jan Prasek, Radim Hrdy, Jana Drbohlavova, Radovan Kopp
Summary: We have developed a method for fast and sensitive detection of dissolved phosphate in water using Raman spectroscopy. Our novel planar core/shell surface-enhanced Raman spectroscopy (SERS) probes, with phosphate-scavenging capability, were able to detect phosphate at levels found in water sources. These probes successfully demonstrated selective detection of all phosphate ions and could detect phosphate concentrations as low as 1 p.M (30 p.g/L of phosphorus in solution). Real-time SERS monitoring allowed us to study the dynamics of phosphate interaction with the nano-structured surface of the probes, revealing a two-step adsorption process under natural conditions (neutral to basic environment).
JOURNAL OF RAMAN SPECTROSCOPY
(2023)
Article
Nanoscience & Nanotechnology
Ping Wen, Feng Yang, Chuang Ge, Shunbo Li, Yi Xu, Li Chen
Summary: An efficient nano-Ag/Au@Au film composite SERS substrate was proposed for the rapid detection of creatinine in human serum. Finite element simulation analysis and experimental results showed that the substrate had high enhancement factor and low limit of detection for R6G molecules. The label-free detection of human serum creatinine using the SERS substrate demonstrated a low LOD and high linear correlation coefficient, indicating its potential for disease biomarker detection.
Article
Optics
Zhiyuan Zhang, Zhaoxiang Li, Luyao Wang, Jinmeng Li, Jie Pan, Shuyun Wang, Chao Zhang, Zhen Li, Qianqian Peng, Xianwu Xiu
Summary: A sandwich SERS substrate based on tantalum oxide was designed and fabricated in this study, demonstrating high sensitivity, stable performance, and high quantification capability for Raman detection of crystal violet. The substrate achieved a detection limit of 10(-11) M and an enhancement factor of 1.5 x 10(9), showing stable performance even after exposure to air for one month.
Article
Nanoscience & Nanotechnology
Magdalena A. Zajac, Boguslaw Budner, Malwina Liszewska, Bartosz Bartosewicz, Lukasz Gutowski, Jan L. Weyher, Bartlomiej J. Jankiewicz
Summary: The results of comparative studies on PLD and MS fabricated GaN/Ag substrates for SERS are reported. The SERS properties of the substrates were evaluated by measuring the SERS spectra of 4-mercaptobenzoic acid molecules adsorbed on them. The PLD-made GaN/Ag substrate exhibited approximately 4.4 times higher enhancement factor than the best MS-made substrate.
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2023)
Article
Chemistry, Analytical
Angela Capaccio, Antonio Sasso, Giulia Rusciano
Summary: Polycyclic aromatic hydrocarbons (PAHs) are common environmental pollutants that are harmful to human health. This article introduces the feasibility of using surface-enhanced Raman spectroscopy as a monitoring method and discusses strategies for improving PAHs detection by enhancing the adsorption capacity of SERS substrates.
Article
Nanoscience & Nanotechnology
Mathew K. Francis, Binaya Kumar Sahu, P. Balaji Bhargav, C. Balaji, Nafis Ahmed, A. Das, Sandip Dhara
Summary: Silver nanowires were synthesized using the hydrothermal method, and the length of the nanowires was controlled by adjusting the concentration of AgNO3. The morphological, structural, and optical properties of the nanowires were studied, and their potential as surface-enhanced Raman scattering substrates was explored, achieving significant enhancement.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Chemistry, Physical
Q. Sun, Q. Y. Zhang, N. Zhou, L. Y. Zhang, Q. Hu, C. Y. Ma
Summary: This study investigated the extinction spectra and local electromagnetic fields of Ag-decorated ZnO nanorods using the FDTD method, revealing the significant impact of different parameters on Raman enhancement. The findings are valuable for the design and optimization of 3D SERS substrates.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Dacheng Xia, Panpan Jiang, Zhiwei Cai, Rui Zhou, Bo Tu, Nan Gao, Gang Chang, Hanping He, Yunbin He
Summary: The Ag NCs/PDMS substrate fabricated by self-assembly method showed high SERS activity and was successfully used for quantitative detection of thiram. It also demonstrated excellent detection ability for thiram residues on apple samples.
Article
Polymer Science
Mayra Matamoros-Ambrocio, Enrique Sanchez-Mora, Estela Gomez-Barojas
Summary: SERS substrates were synthesized using spherical silver nanoparticles adsorbed on Si substrate and opal of PMMA microspheres. Higher concentration of Ag-NPs in the composites led to alteration in the periodicity of PMMA opals and decreased intensity and broadened PBG. The performance evaluation using methylene blue as a probe molecule showed higher enhancement factor (EF) with increased Ag-NP concentration. The EFs of single Ag-NP were nearly 10-fold higher than those of Ag/PMMA composites possibly due to the porosity of PMMA microspheres and the metal-dielectric surface interaction.
Review
Chemistry, Multidisciplinary
Jan Krajczewski, Robert Ambroziak, Andrzej Kudelski
Summary: Surface-Enhanced Raman Scattering (SERS) refers to the phenomenon where the efficiency of generating Raman spectra by molecules adsorbed on some substrates is many orders of magnitude larger than those that are not adsorbed. Significant advances have been made in utilizing nanostructured non-metallic materials as SERS substrates, showing great potential for future applications.
Review
Crystallography
Jesus Alberto Garibay Alvarado, Simon Yobanny Reyes-Lopez
Summary: Sol-gel ceramics, with their wear- and heat-resistant properties, offer an alternative for signal enhancement substrates. The high purity of ceramics produced through sol-gel method, along with their versatility in fabrication, can improve reproducibility in various applications.
Article
Chemistry, Analytical
Ximo Wang, Chen Chen, Ruiqiang Wang, Xuguang Qiao, Geoffrey I. N. Waterhouse, Zhixiang Xu
Summary: Researchers prepared novel SERS substrates by loading graphene oxide (GO) and silver nanoparticles onto four different hydrophobic biomaterials (rose petals, lotus leaves, cicada wings or dragonfly wings). The obtained substrates showed outstanding SERS performance, encouraging wider use of hydrophobic biomaterials in SERS substrate construction and hazard monitoring.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Materials Science, Multidisciplinary
Xiuxia Tang, Xiaoyu Zhao, Jiahong Wen, Jia Liu, Fengyi Zhang, Xiaojie Guo, Kun Zhang, Jian Zhang, Aofang Wang, Renxian Gao, Yaxin Wang, Yongjun Zhang
Summary: This paper reports the design and fabrication of an anisotropic Ag nanocavity array using magnetron sputtering and ion beam etching techniques. The size and position of the nanocavities can be controlled by adjusting the etching angle and film thickness. The research shows that the nanocavity array exhibits angle-dependent surface-enhanced Raman scattering (SERS) and can eliminate background signals.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Electrochemistry
Wenbo Shao, Yunkai Sun, Walter Giurlani, Massimo Innocenti, Giovanni Zangari
Summary: Estimations of the initial transient and the potential vs. composition trend in alloy electrodeposition are crucial for material design and deposition processes. This study proposes simplified estimation methods based on a stagnant diffusion layer model, which are validated through experiments and show good agreement with observed values.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Valentina Cantelli, Sophie Guillemin, Eirini Sarigiannidou, Francesco Carla, Bruno Berini, Jean-Michel Chauveau, Dillon D. Fong, Hubert Renevier, Vincent Consonni
Summary: The polarity of ZnO nanowires affects their nucleation process and morphology development. The study shows that the formation of ZnO nanowires follows three phases and the characteristics of each phase depend on the polarity of the nanowires. This research provides a deeper understanding of the physicochemical processes at work during the growth of ZnO nanowires.
Article
Physics, Condensed Matter
Debi Garai, Axel Wilson, Ilaria Carlomagno, Carlo Meneghini, Francesco Carla, Hadeel Hussain, Ajay Gupta, Jorg Zegenhagen
Summary: The surface region of austenitic stainless steel (SS) was investigated using synchrotron X-ray powder diffraction (XRPD) and X-ray absorption near edge structure (XANES) measurements. The results showed that the near-surface structure was modified and the concentration of the ferrite phase gradually increased when approaching the surface. The studies on ultrathin films also revealed larger ferrite fractions than expected. However, at the surface, the trend reversed.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Walter Giurlani, Martina Vizza, Antonio Alessio Leonardi, Maria Jose Lo Faro, Alessia Irrera, Massimo Innocenti
Summary: This work demonstrates the optimal conditions for electrodeposition of a CdSe film on n-Si and studies the structural and optical properties of the films before and after annealing. Significant enhancement of photoluminescence is observed after annealing, opening up possibilities for integrating other materials in silicon manufacturing processes for optoelectronic device fabrication.
Article
Materials Science, Multidisciplinary
Stefano Mauro Martinuzzi, Lorenzo Donati, Walter Giurlani, Federico Pizzetti, Emanuele Galvanetto, Nicola Calisi, Massimo Innocenti, Stefano Caporali
Summary: In this study, chromium layers with a thickness of 800 nm were deposited directly onto copper substrates using magnetron sputtering and direct current electrodeposition methods. The functional and aesthetical properties of the coatings were compared. The magnetron sputtered coatings exhibited a darker but reflective appearance, superior thickness homogeneity, and comparable or better corrosion resistance compared to the electroplated samples.
Article
Materials Science, Multidisciplinary
Andrea Comparini, Ivan Del Pace, Walter Giurlani, Roberta Emanuele, Margherita Verrucchi, Marco Bonechi, Massimo Innocenti
Summary: Aluminium and its alloys are light, cheap, and recyclable, making them interesting for various applications including the fashion-jewellery sector. However, their tendency to form a passivating film makes them difficult to galvanize, especially when impurities are present. This study focused on the pre-treatments and electroplating of Al6082 aluminium for fashion-jewellery applications. The results showed that Al6082 can be successfully used as a base material in the fashion-jewellery market.
Article
Biophysics
Walter Giurlani, Alberto Fidi, Erasmo Anselmi, Federico Pizzetti, Marco Bonechi, Emiliano Carretti, Pierandrea Lo Nostro, Massimo Innocenti
Summary: The main objective of this research is to explore new possibilities in electrodeposition and provide environmentally friendly alternatives to the electroplating industry. The influence of different anions (SO42-, ClO3-, NO3-, ClO4-, BF4-, PF6-) in solution on the electrodeposition of copper was investigated. The solutions used in the study were designed to minimize environmental impact and reduce the reliance on organic additives and surfactants. The research employed electrochemical measurements to confirm the absence of metal complexation, and evaluated nucleation and growth mechanisms, as well as the morphology and deposition efficiency of the electrodeposited films.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2023)
Article
Electrochemistry
Yin Xu, Qiyuan Lin, Yunkai Sun, Rasin Ahmed, Massimo Innocenti, Giovanni Zangari
Summary: The slow kinetics of the oxygen evolution reaction (OER) hinders scalable energy conversion/storage by water splitting. Two possible solutions are the implementation of electrochemical catalysts with low cost and high turn-over efficiency, or the application of a photoanode in a photoelectrochemical (PEC) cell using a semiconductor with proper protection layer.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Analytical
Walter Giurlani, Fabio Biffoli, Lorenzo Fei, Federico Pizzetti, Marco Bonechi, Claudio Fontanesi, Massimo Innocenti
Summary: A method is described for determining the intermetallic diffusion coefficient in the Cu-Au system using energy dispersive X-ray techniques. XRF and EDS analysis were used to measure the thickness of the gold coating and the copper diffused through it, respectively. The diffusion coefficient was calculated based on Fick's law, and alternative methods such as color measurements and metallographic section analysis were performed for a qualitative determination of diffusion rate. The results obtained showed a linear trend between the logarithm of the diffusion coefficient and the inverse of the temperature, consistent with literature values.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Physical
Cem Oernek, Fan Zhang, Alfred Larsson, Mubashir Mansoor, Gary S. Harlow, Robin Kroll, Francesco Carla, Hadeel Hussain, Dirk L. Engelberg, Bora Derin, Jinshan Pan
Summary: This work demonstrates that hydrogen absorption can lead to the degradation of the passive film on stainless steel, resulting in microstructure embrittlement. The absorption of hydrogen causes the reduction of oxides and generation of ionic defects within the passive film, leading to its decomposition. Atomic hydrogen infuses into the lattices of the austenite and ferrite phases, causing strain evolution as observed in synchrotron X-ray diffraction data.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Saber Haratian, Kapil Kumar Gupta, Alfred Larsson, Giuseppe Abbondanza, Emad Hasan Bartawi, Francesco Carla, Edvin Lundgren, Rajan Ambat
Summary: The CO2-induced corrosion scale on low-grade carbon steel surface was studied to understand the involved corrosion mechanisms in CO2-saturated water environments.
Review
Chemistry, Physical
Mariya Vorobyova, Fabio Biffoli, Walter Giurlani, Stefano Mauro Martinuzzi, Maximilian Linser, Andrea Caneschi, Massimo Innocenti
Summary: Physical Vapor Deposition (PVD) is a widely used process for protective and hard coatings in various industrial applications. While previously dominated by electroplating processes, PVD has recently emerged in fields like fashion. The future aims to replace hazardous electrochemical processes restricted by the European Union with PVD coatings. Currently, a combination of both techniques is employed for new aesthetic features, making PVD of primary interest in the decorative field and fashion industry.
Article
Materials Science, Multidisciplinary
Lapo Gabellini, Nicola Calisi, Stefano Mauro Martinuzzi, Rosa Taurino, Massimo Innocenti, Tiberio Bacci, Francesca Borgioli, Emanuele Galvanetto, Stefano Caporali
Summary: Porous TiO2 thin films were prepared through electrochemical anodization of commercial-grade titanium foils in baths containing different concentrations of ethylene glycol. The effect of ethylene glycol on pore size and anatase-to-rutile ratio was investigated using X-ray diffraction, scanning electron microscopy, and UV/visible spectroscopy. The study demonstrated that the morphology and mineralogic composition of titanium anodization can be effectively and to some extent tunably controlled in fluoride-free and ethylene glycol-bearing acidic solutions.
Article
Chemistry, Multidisciplinary
Giuseppe Abbondanza, Alfred Larsson, Weronica Linpe, Crispin Hetherington, Francesco Carla, Edvin Lundgren, Gary S. Harlow
Summary: A high-throughput method for fabricating ordered arrays of Au nanoparticles is presented. The method is simple, cyanide-free, and allows for controlling the morphology and properties of the nanoparticles.
NANOSCALE ADVANCES
(2022)
Article
Electrochemistry
Walter Giurlani, Luca Sergi, Eugenio Crestini, Nicola Calisi, Federico Poli, Francesca Soavi, Massimo Innocenti
Summary: This study investigates the electrochemical behavior of steel, copper, and titanium current collectors in LiTFSI solutions of different concentrations. It is found that the electrochemical window of water stability widens with increasing electrolyte concentration, based on the water-in-salt concept. The metal grids are studied using cyclic voltammetry and chronoamperometry under both anodic and cathodic conditions. Microscopic and compositional analyses reveal that copper is not suitable for this application, while titanium and steel show interesting behavior and a large electrochemical window.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(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)
