Article
Chemistry, Inorganic & Nuclear
H. M. Shashanka, P. N. Anantharamaiah
Summary: This study investigates the magnetostrictive characteristics of sintered CoFe2O4 (CFO), Co0.85Ni0.15Fe1.85Ga0.15O4 (CNFGO15), and Co0.85Mg0.15Fe1.85Ga0.15O4 (CMFGO15) ceramics. The CMFGO15 sample exhibits enhanced strain sensitivity at low magnetic fields compared to the other two samples, with a maximum strain sensitivity nearly 160% higher than the values found for the other two samples even at remarkable low field.
SOLID STATE SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
P. N. Anantharamaiah, H. M. Shashanka, R. Kumar, J. A. Chelvane, B. Sahoo
Summary: Phase pure cobalt-ferrite and Zn-substituted cobalt-ferrite nanopowders were synthesized by a combustion route, showing excellent magnetostriction behavior for potential applications in highly sensitive strain sensors.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Physical
P. N. Anantharamaiah, H. M. Shashanka, S. Saha, J. A. Chelvane, B. Sahoo
Summary: Bismuth-substituted cobalt ferrite samples with enhanced magnetostriction were successfully synthesized using a glycine-nitrate based auto-combustion route. The presence of Bi3+ promoted significant grain growth and increased strain sensitivity at lower magnetic fields.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Ganesha Channagoudra, Ajay Kumar Saw, Koushik Dey, Deepa Xavier, R. Venkatesh, V Subramanian, D. K. Shukla, Vijaylakshmi Dayal
Summary: Particulate type multiferroic composites exhibit coupling between piezoelectric and magnetostrictive phases via strain, with potential applications in magnetic field sensors and energy harvesters. A study on composites with different molar ratios found that the 80:20 ratio composite has the highest magnetoelectric coefficient, with substantial responses at varying frequencies, making it an ideal candidate for practical use.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Yiqun Zhang, Junming Gou, Tianzi Yang, Yubin Ke, Tianyu Ma
Summary: A non-equilibrium time-temperature-transformation (TTT) diagram and the corresponding time-temperature-property (TTP) relation were determined for Fe73Ga27 alloy, which exhibits significantly enhanced magnetostriction with the formation of coherent L6(0) nanoprecipitates. The diagram provides a processing base for enhancing the magnetostriction of Fe-Ga alloys and can offer important guidance for tailoring the microstructure of other nanoprecipitates-bearing alloys with similar diffusion-controlled phase transformation.
Article
Chemistry, Multidisciplinary
Yuruo Zheng, Ghulam Hussain, Shuyi Li, Shanta Batool, Xiawa Wang
Summary: In this study, nanoparticles of Co1-xRexFe2O4 and CoFe2-xRexO4 (0 <= x <= 0.05) were synthesized by the sol-gel method. The substitution of Re led to slightly increased lattice parameters and shift in Raman spectra peak positions. The surface Re exchange changed the coordination environment of metals and induced Fe-site structure distortion. The magnetic measurements showed that all samples exhibited ferromagnetic behavior across the entire temperature range.
Article
Chemistry, Physical
Taoyu Yang, Deyou Yu, Dong Wang, Tao Yang, Zexiong Li, Minghua Wu, Michal Petru, John Crittenden
Summary: The Fenton-like performance of Fe-MOFs was improved by manipulating the structure of iron-oxo nodes with Fe(II) substitution, resulting in a material with stronger active sites and higher density of Fe(III) coordinatively unsaturated iron centers. This enhancement facilitated the rapid activation of H2O2 and efficient degradation of pollutants.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Fadi Dawaymeh, Dina Ali Gaber, Safa Ali Gaber, K. Suresh Kumar Reddy, Georgia Basina, Issam Ismail, Ahmed Subrati, Ola Ismail, Georgios N. Karanikolos, Yasser F. Al Wahedi
Summary: Isomorphic substitution of metal ions can alter the morphology and lattice parameters of AlPO4-5 crystals, as well as tune their water adsorption behavior. Metal substitution affects the hydrophobicity and adsorption capacity of the materials, with an increase in metal content leading to a shift in the onset of the adsorption inflection point. Among the adsorbents tested, an Fe-based AlPO4-5 showed the highest absorption capacity.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Hailong Liao, Heping Xie, Shuo Zhai, Ling Fu, Yuan Zhang, Senran Hao, Bin Chen, Chuanxin He, Zongping Shao
Summary: Efficient and cost-effective CO2RR perovskite catalyst was developed by partially substituting Fe to the B site of precious metal-free La0.5Sr0.5MnO3 (LSM) perovskite. The Fe-doped catalyst showed improved electrochemical performance, Faraday efficiency, battery durability, and battery power density, making it a promising CO2RR electrocatalyst for Zn-CO2 batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Ceramics
Hanaa Almaghamsi, N. M. Basfer
Summary: This study describes the synthesis of pure and Bi3+ doped Mg-Cu nanophotocatalysts (MCBF) for the disposal of the dangerous pollutant Rhodamine B (RhB). The structural, morphological, optical, and photocatalytic degradation characteristics of MCBF were investigated. The MCBF5 catalyst, with the highest bismuth content, showed excellent stability and the supreme RhB degradation of 95.81%, making it a potential catalyst for wastewater purification under sunlight.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Yaoshen Niu, Zilin Hu, Bo Zhang, Dongdong Xiao, Huican Mao, Lin Zhou, Feixiang Ding, Yuan Liu, Yang Yang, Juping Xu, Wen Yin, Nian Zhang, Zhiwei Li, Xiqian Yu, Hao Hu, Yaxiang Lu, Xiaohui Rong, Ju Li, Yong-Sheng Hu
Summary: This study successfully utilizes Mg2+ to activate the oxygen redox reaction in abundant Fe/Mn-based layered cathodes, achieving reversible anionic and cationic redox capacities. This leads to lower cost, higher energy density, and improved cycling performance of Na-ion batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Environmental Sciences
Hanna Awes, Zinat Zaki, Safa Abbas, Hassan Dessoukii, Amal Zaher, Samah A. Abd-El Moaty, Nabila Shehata, Ahmed Farghali, Rehab K. Mahmoud
Summary: A new adsorbent was prepared by modifying Mg-Fe LDH for the removal of Cu2+ metal ions from wastewater. The Mg-Fe LDH with ligand showed a higher adsorption capacity compared to pure LDH, making it a potential material for efficient removal of heavy metals from polluted water. Additionally, the adsorption of Cu2+ metal ions followed a mixed 1,2-order mechanism, and the recyclability and chemical stability of the adsorbents were proven through multiple adsorption/desorption cycles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Nanoscience & Nanotechnology
Xu Liu, Hai-Long Jia, Cheng Wang, Xian Wu, Min Zha, Hui-Yuan Wang
Summary: The study investigated the impact of Mn content on the formation of Fe-bearing phases, macro-segregation behavior, and mechanical properties of TRC Al-0.5Mg-0.7Si-0.1Fe-xMn alloys. Results showed that Mn addition can alleviate macro-segregation in Al alloys, but excessive Mn can lead to the formation of coarse intermetallic compounds aggravating macro-segregation. The 0.1Mn alloy exhibited the best combination of yield strength and elongation under artificial aging conditions, mainly due to the formation of fine alpha-Al(FeMn)Si particles contributing to dispersion strengthening.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Shaochang Song, Yuyang Huang, Yu-Chih Tseng, Suneesh Meledath Valiyaveettil, Kuei-Hsien Chen, Yurij Mozharivskyj
Summary: The study successfully converted an n-type Co4Ge6Te6 into a p-type semiconductor by substituting Fe, resulting in increased electrical conductivity and improved thermoelectric performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Priyanka Verma, Preetam Singh, P. K. Roy
Summary: The study investigated the effect of Mg-substitution on the structure, magnetic, and electrical properties of Bi0.9Sm0.1FeO3 (BSFO) in polycrystalline bulk samples. The results showed that for moderate Mg substitution (x = 0.050), the samples exhibited enhanced magnetic behavior and limited grain boundary effects.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Chemistry, Physical
P. N. Anantharamaiah, Sanjukta Mondal, Sujoy Saha
Summary: This study demonstrates induced catalytic activity in hard magnetic strontium hexaferrite system by replacing Fe with Cu, with SrCu(0.3)Fe(11.7)O(19) showing superior catalytic performance in transforming 4-nitrophenol to 4-aminophenol within 8 minutes. Reusability test confirmed 100% activity retention even after five consecutive cycles for the SrCu(0.3)Fe(11.7)O(19) catalyst.
Article
Materials Science, Ceramics
William Remlalfaka, Chinnasamy Murugesan, P. N. Anantharamaiah, N. Manikanda Prabu
Summary: Bismuth vanadate and nickel ferrite nanoceramics were synthesized and three composites were prepared, with the 50 wt% BiVO4 + 50 wt% NiFe2O4 composite showing the highest photocatalytic activity. These magnetic composites can achieve 80% dye degradation efficiency under sunlight and can be easily separated using a laboratory magnet.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
P. N. Anantharamaiah, H. M. Shashanka, R. Kumar, J. A. Chelvane, B. Sahoo
Summary: Phase pure cobalt-ferrite and Zn-substituted cobalt-ferrite nanopowders were synthesized by a combustion route, showing excellent magnetostriction behavior for potential applications in highly sensitive strain sensors.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Physical
P. N. Anantharamaiah, H. M. Shashanka, S. Saha, J. A. Chelvane, B. Sahoo
Summary: Bismuth-substituted cobalt ferrite samples with enhanced magnetostriction were successfully synthesized using a glycine-nitrate based auto-combustion route. The presence of Bi3+ promoted significant grain growth and increased strain sensitivity at lower magnetic fields.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
K. Chandrika Chandrika, P. N. Anantharamaiah, R. Hari Krishna, A. G. Jineesh, T. Niranjana Prabhu
Summary: This study successfully synthesized CoFe2O4-TiO2 (p-n) catalyst by the modified sol-gel route and optimized the experimental parameters for photocatalysis. The research found that pH is the critical influencing factor on photocatalysis, followed by catalyst dosage, mixing speed, and irradiation time.
MATERIALS TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Pendaranahalli Nadikeraiah Anantharamaiah, Hadonahalli Munegowda Shashanka, Sujoy Saha, Keerthi Haritha, C. Ramana
Summary: By substituting a non-magnetic cation for a magnetic cation, otherwise catalytically inactive magnetic materials can be transformed into catalytically active materials. The catalytic performance of Al-doped SrFe12O19 nanomaterials in the reduction reaction of 4-nitrophenol demonstrates good activity due to the presence of Al ions in the hexaferrite lattice structure.
Article
Chemistry, Physical
Pendaranahalli Nadikeraiah Anantharamaiah, Prerna Rao, Hadonahalli Munegowda Shashanka, Vijay Khopkar, Jeyaramane Arout Chelvane, Balaram Sahoo, C. Ramana
Summary: The tunable dielectric properties of cation-substituted nickel ferrite have been achieved through selective engineering of crystallographic site occupation. The occupation of different sites by Mg2+ and In3+, as confirmed by spectroscopy, leads to variations in dielectric constant and activation energy.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Pendaranahalli Nadikeraiah Anantharamaiah, Hadonahalli Munegowda Shashanka, Srikari Srinivasan, Debabrata Das, Ahmed A. El-Gendy, C. V. Ramana
Summary: This study reports on the fabrication, characterization, and evaluation of cobalt ferrite nanocrystalline thin films on a flexible mica substrate. The CFO films exhibited single-phase and nanocrystalline nature, spherical shape morphology, and suitable magnetic and magnetostrictive properties for flexible sensor devices.
Article
Nanoscience & Nanotechnology
Mudalagiriyappa Satish, Hadonahalli Munegowda Shashanka, Sujoy Saha, Keerthi Haritha, Debabrata Das, Pendaranahalli Nadikeraiah Anantharamaiah, C. Ramana
Summary: This study investigates the effect of substituting Ni2+ with Co2+ on the crystal structure, phase, microstructure, magnetic properties, and magnetostrictive properties of NiFe2O4 (NFO). The Co-substituted NFO (Ni1-xCoxFe2O4, NCFO, 0<x<1) nanomaterials were synthesized and analyzed using various techniques. The results show that Co-substitution significantly influences the lattice constant, chemical bonding, and magnetic properties of NCFO, with potential applications in torque sensors.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
H. M. Shashanka, Sujoy Saha, Keerthi Haritha, P. N. Anantharamaiah, C. V. Ramana
Summary: We report on the influence of Al and Zn co-substitution on the structural, magnetic, and magnetostrictive properties of CZFAO materials. The incorporation of smaller Al3+ ions in spinel ferrite leads to a reduction in crystallite size and lattice parameter. Al-Zn substitution induces grain growth, resulting in a dense, interconnected grain morphology. The magnetic properties of CZFAO, such as saturation magnetization and coercivity, decrease with increasing x due to the non-magnetic character of the substituents.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Ceramics
M. Satish, H. M. Shashanka, S. Saha, P. N. Anantharamaiah, C. V. Ramana
Summary: This study reports on the enhanced magnetostrictive characteristics of composites derived from hard cobalt ferrite (CFO) and soft nickel ferrite (NFO) materials. The composites were synthesized using a cost-effective and eco-friendly method, and their phase purity, surface morphology, magnetic properties, and magnetostrictive characteristics were evaluated. The composites exhibited better magnetostriction at lower magnetic fields compared to the parent sintered CFO and NFO samples, and their structure-phase-property correlation could provide a roadmap for their potential applications in electromagnetic devices.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
S. Kalpana, Vinay S. Bhat, G. Hegde, T. Niranjana Prabhu, P. N. Anantharamaiah
Summary: Two synthesis methods, autocombustion and sol-gel, were used to produce nearly spherical and polygonal shaped nanomaterials of spinel cobalt oxide as electrode materials. Analysis revealed different particle morphologies and crystallite sizes for the two samples, as well as variations in surface area and specific capacitance. Autocombustion method exhibited superior energy storage capability and higher surface area compared to sol-gel method.
Letter
Materials Science, Multidisciplinary
Kriti Gupta, Pranay Ninawe, Anil Jain, Arun Dadwal, M. Anas, V. K. Malik, S. M. Yusuf, Pattayil A. Joy, Nirmalya Ballav
Summary: Doping of quantum spin liquid insulators like barlowite with electron or hole leads to phase transitions to metallic and superconducting states. The resulting barlowite-rGO system exhibits semiconductor properties modulated by electron doping, making charge-doping experiments on barlowite and its analogs propitious.
Article
Chemistry, Multidisciplinary
Balendra, Bharti Singh, Azeem Banday, Shailabh Tewari, Vineet Kumar, Sevi Murugavel, P. A. Joy, Arunachalam Ramanan
Summary: A systematic investigation of the system manganese(II) salt-H(2)SBA-auxiliary ligand-solvent led to the isolation of six new multidimensional coordination polymers, all of which exhibited antiferromagnetic behavior at lower temperatures.
Article
Chemistry, Physical
P. N. Anantharamaiah, B. Prerna Rao, H. M. Shashanka, J. A. Chelvane, V. Khopkar, B. Sahoo
Summary: The study investigates the effect of Mg2+ and In3+ substitution on the structural, magnetic, magnetostrictive, and dielectric properties of NiFe2O4 samples. It was found that In3+ substituted sample showed better grain growth after sintering, as confirmed through microscopy and dielectric results.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
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)
