Article
Multidisciplinary Sciences
Lutfor Rahman, Salina Rahman, Bristy Biswas, Md. Farid Ahmed, Moksodur Rahman, Nahid Sharmin
Summary: M-type strontium hexaferrite (SrM) was synthesized using co-precipitation technique with different sintering temperatures and mole ratios. The synthesized SrM was characterized and its properties were investigated. The structural parameters, particle size, and magnetic properties of the samples were found to vary with calcination temperature and composition. The synthesized SrM showed potential applications in magnetic recording media and photocatalysis due to its low coercivity, high saturation magnetization, and low band gap energy.
Article
Chemistry, Physical
Cody Kunka, Apaar Shanker, Elton Y. Chen, Surya R. Kalidindi, Remi Dingreville
Summary: Traditional diffraction techniques are limited by the difficulty of decoding desired material information, but using machine learning and feature identification can more comprehensively and accurately predict structural information.
NPJ COMPUTATIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Azra Parveen, Shraddha Agrawal
Summary: Ni1-xCoxO (x = 0, 3, 7, 10%) nanoparticles were synthesized using microwave gel combustion method. Structural analysis revealed a crystallite size ranging from 13.11 to 19.03 nm, determined by Transmission Electron Microscopy (TEM) and Debye-Scherrer's method. The Co-doped NiO NPs exhibited enhanced dielectric permittivity, ferromagnetic nature, and improved antibacterial activity, making them potential candidates for diluted magnetic semiconductors, spintronic and electronic devices, and antimicrobial nanomaterials development.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Xiaoye Chen, Ming Lin, Jian Feng Kong, Hui Ru Tan, Anthony K. C. Tan, Soong-Geun Je, Hang Khume Tan, Khoong Hong Khoo, Mi-Young Im, Anjan Soumyanarayanan
Summary: This study unveils the evolution of chiral spin texture characteristics on a tunable multilayer platform using electron and X-ray microscopies as well as numerical simulations. It establishes a comprehensive microscopic framework for investigating and tailoring chiral spin texture character in multilayer films.
Article
Chemistry, Physical
Iztok Naglic, Blaz Leskovar, Zoran Samardzija, Bostjan Markoli
Summary: This study investigated the influence of gallium addition on the phases formed in Al-Mn alloys during casting, revealing that an increase in gallium content led to the formation of IQCs and DQCs in the alloys. Microanalysis showed that IQCs contained more gallium and less manganese compared to DQCs.
Article
Materials Science, Ceramics
Narcisa Mihaela Marian, Matteo Perotti, Carlo Indelicato, Claudia Magrini, Giovanna Giorgetti, Giancarlo Capitani, Cecilia Viti
Summary: The study aims to utilize red gypsum muds from a TiO2 plant in Tuscany, Italy to produce ceramic materials for construction industry based on the principles of circular economy. The characterization of the red gypsum muds reveals its consistent chemical and mineralogical properties over time, which makes it suitable as a secondary raw material for industrial ceramic production. Ceramic specimens fabricated using a high proportion of red gypsum waste (up to 70%) consists of anhydrite, pyroxene, and Fe/Ti oxides as the main crystalline phases embedded in a glassy compact matrix. The production of ceramic materials could provide a sustainable solution for the management of large volumes of red gypsum waste from TiO2 plants.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Zeenat Jabeen, Asadullah Dawood, Muneerah Alomar, Salman Naeem Khan, Ihsan Ali, Muhammad Asif, Waseem Abbas, Muhammad Sultan Irshad, Mukhtar Ahmad
Summary: A series of single-phase nickel-substituted magnesium spinel ferrites were synthesized using the hydrothermal technique, and their morphology, structure, magnetism, and electrochemical properties were investigated. Experimental characterization techniques confirmed the presence of a single-phase spinel structure, with a decrease in lattice parameter and clustering of nanoparticles as nickel concentration increased. Raman and FTIR spectra indicated changes in wave numbers and the shortening of Fe-O bonds. Additionally, the ferrites exhibited increased saturation magnetization, decreased coercivity, decreased specific capacitance, and increased loop size. These ferrites are promising for energy storage applications.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Masaki Tahara, Kazuya Hasunuma, Hideki Hosoda
Summary: This study investigated the decomposition process of the isothermal alpha '' phase in beta-Ti alloys, and found that the resulting alpha + beta dual phase inherited the microstructural characteristics of the alpha ''(iso) phase. The research results indicate the existence of a strict variant selection rule between the decomposed alpha and beta phases, with a specific variant combination observed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Shreya Kushwaha, Rajamani Nagarajan
Summary: In this study, Zn2MnO4 nano-material was successfully prepared by investigating the reaction between chloride salts of zinc and manganese with NaOH and recrystallizing under hydrothermal conditions. The characteristics and properties of the sample were confirmed through various analytical techniques, including its crystal structure, chemical composition, optical, and magnetic properties.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
A. Pashchenko, N. A. Liedienov, Quanjun Li, I. I. Makoed, D. D. Tatarchuk, Y. Didenko, A. Gudimenko, V. P. Kladko, Lina Jiang, Liping Li, V. G. Pogrebnyak, G. G. Levchenko
Summary: Single-phase lanthanum-modified bismuth ferrite multiferroic ceramics were synthesized using the RLS method, with studies conducted on their phase composition, crystal structure, microstructure, and dielectric properties. The optimal conditions for achieving a perovskite Bi0.9La0.1FeO3 structure were determined, with compacting pressure shown to greatly impact the dielectric constant of the material. The use of the RLS method under varying compacting pressures offers new possibilities for creating multifunctional multiferroics with controlled magnetoelectric coupling.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Energy & Fuels
Mehmet Erman Mert
Summary: The study investigated the efficiency of hydrogen production by doping nickel foam precursors with nickel, cobalt particles, and decorating with silver nano-domes. The catalyst NF/NiCo-2/Ag showed the best performance in terms of lower hydrogen overpotential, higher HPE, stability, and response during the electrolysis process in 1 M KOH.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Taeyang Choi, Zhan Zhang, Hoon Kim, Sunwook Park, Jong-Woo Kim, Kyeong Jun Lee, Zahir Islam, Ulrich Welp, Seo Hyoung Chang, B. J. Kim
Summary: The physical properties of magnetic materials depend not only on the microscopic spin and electronic structures but also on the mesoscopic structures that emerge from domain formations or phase separations. This study combines full-field microscopy and resonant magnetic X-ray diffraction to visualize antiferromagnetic domains of Sr2IrO4 with high spatial resolution. The results reveal an intertwining of two antiferromagnetic domains on a mesoscopic length scale, highlighting the importance of this technique for understanding the physical properties of antiferromagnets.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Holger Schwarz, Thomas Uhlig, Niels Roesch, Thomas Lindner, Fabian Ganss, Olav Hellwig, Thomas Lampke, Guntram Wagner, Thomas Seyller
Summary: This study analyzed thin films deposited via magnetron sputtering from two different preparation methods of CoCrFeNi High-Entropy Alloy targets and found that their stoichiometry, phase composition, and microscopic structure were almost identical after film deposition with the same parameters.
Article
Engineering, Electrical & Electronic
Ganesh Shridhar Hegde, A. N. Prabhu, Suchitra Putran, Ashok Rao, K. Gurukrishna, U. Deepika Shanubhogue
Summary: Composite polycrystalline samples of (Bi0.98In0.02)(2)Te2.7Se0.3/x%Bi2Se3 were prepared using the solid-state reaction approach, with varying amounts of Bi2Se3 (x = 5%, 10%, 15%, and 20%). The composite displayed a hexagonal crystal structure (space group: R3m) according to x-ray diffraction analysis. Scanning electron microscopy revealed the presence of secondary particles on the sample surface. All samples exhibited typical semiconductor behavior across the entire temperature range. In the (Bi0.98In0.02)(2)Te2.7Se0.3 complex, bismuth was found to coordinate with six selenium atoms and there were significant selenium vacancies. Increased concentration of bismuth selenide led to a shift from a dissolution pattern to a substitutional pattern. The (Bi0.98In0.02)(2)Te2.7Se0.3/20%Bi2Se3 composition showed a two-fold decrease in electrical resistivity compared to (Bi0.98In0.02)(2)Te2.7Se0.3/5%Bi2Se3. Sintering and scattering of potential barrier resulted in the formation of granular material and increased Seebeck coefficient. A 200% increase in thermopower was observed for (Bi0.98In0.02)(2)Te2.7Se0.3/20%Bi2Se3 compared to (Bi0.98In0.02)(2)Te2.7Se0.3/5%Bi2Se3 compound.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Physics, Multidisciplinary
Basmah H. Alshammari, Ubaid-ur-Rehman Ghori, Qasim Ali Ranjha, Sohail Ahmad, Waseem Abbas, Sana Ullah Asif, Fahim Ahmed, Fatma A. Ibrahim, Mohamed S. Hamdy, Sayed M. Eldin
Summary: The hexagonal ferrites, Ba0.9Sm0.1Fe10Al2O19, were synthesized using the conventional solid state reaction method. The effects of different sintering temperatures on the magnetic and structural properties of Barium hexa ferrites were analyzed. XRD confirmed a pure hexagonal structure with no impurity peaks. SEM analysis showed a homogeneous distribution of particles. Magnetic measurements revealed a saturation magnetization value of 48.55 emu g(-1) and coercivity of 5.01 KOe for the sample sintered at 1220 degrees C. With increasing sintering temperature, the saturation magnetization decreased to 46.24 emu g(-1) and the coercivity increased to 5.26 KOe at 1270 degrees C.
Article
Engineering, Electrical & Electronic
Ajay Kumar, Dnyandeo Pawar, Dattatray J. Late, Rajesh Kanawade
Summary: This study proposes and investigates a Fabry-Perot Interferometer-based polyvinyl alcohol-coated sensor platform for non-invasive detection of acetone vapor at room temperature, for the prospective study of diabetes diagnosis. The sensor is simple, miniaturized, flexible, cost-effective, and highly sensitive for low acetone vapor concentration detection.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Vinayak V. Gawade, Sandip R. Sabale, Rohant S. Dhabbe, Kalyanrao M. Garadkar
Summary: In this study, a novel and environmentally sustainable method for the synthesis of spherical-shaped SnO2 nanostructures (NSs) using Syzygium cumini (SC) leaf extract was reported. Spectroscopic, microscopic, and BET analyses were employed to characterize the structural, optical, morphological, elemental, and surface properties of the obtained NSs. The SnO2 NSs exhibited high dye removal efficiency for methyl orange (MO) and methylene blue (MB) within relatively short time periods. The relevance of point of zero charge (pH(pzc)) for the degradation of dyes was also discussed.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Amruta Bhosale, Jaganath Kadam, Trupti Gade, Kailas Sonawane, Kalyanrao Garadkar
Summary: Silver-doped ZnO nanoparticles (Ag-ZnO NPs) with different concentrations of silver ions were synthesized and characterized using various techniques. The optimized Ag-ZnO NPs exhibited a smaller crystallite size and a decreased band gap compared to bare ZnO. In addition, the Ag-ZnO NPs demonstrated enhanced photocatalytic efficiency and bactericidal activity, making them a promising and reusable material for degradation and antibacterial applications.
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Amruta Bhosale, Anna Gophane, Jagannath Kadam, Sandip Sabale, Kailas Sonawane, Kalyanrao Garadkar
Summary: In this study, ZnO nanoparticles (NPs) were modified with g-C3N4 to overcome the shortcomings of wide band gap and high recombination rate. The prepared ZnO-gC(3)N(4) nanocomposites demonstrated enhanced light absorption in the visible region, improved photocatalytic efficiency, and good photo-stability. The nanocomposites also showed bactericidal activity against gram-negative bacteria and lower cytotoxicity compared to the original dye.
Article
Engineering, Electrical & Electronic
R. B. Sathe, C. U. Narayankar, R. P. Patil, R. H. Patil, S. B. Patil
Summary: Sol-gel autocombustion method was used to synthesize Ni0.7-xZnxMg0.3Fe2O4 nanoparticles with x = 0.1, 0.2, 0.3, 0.4, and 0.5. The synthesized Zn-substituted Ni-Mg ferrite cubic spinel nanoparticles exhibited a cubic spinel type structure, as confirmed by X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy data. Scanning electron microscopy (SEM) analysis showed the microstructure of these ferrites, which were found to have proper stoichiometry without any impurities according to energy-dispersive spectroscopy (EDS) analysis. Vibrating sample magnetometer (VSM) studies revealed that the saturation magnetization and magnetic moment increased with zinc concentration up to x = 0.2, and then decreased for further compositions except x = 0.5.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Monidipa Pramanik, Mukta V. V. Limaye, Mahendra S. Pawar, Dattatray J. Late, Shashi B. Singh
Summary: In this study, vanadium carbide (V(2C)Tx) MXene was successfully synthesized and treated with an ammonia solution under different pressures using a hydrothermal process. The results show that the morphology of V(2)CTx MXene changed from uneven multilayered micrometre-size sheets to uniform few-layered nanometer-size sheets as the pressure increased. The optical and electronic properties were influenced by nitrogen-related defects, quantum confinement, and induced lattice strain due to the post-ammonia treatment.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
R. A. Pawar, S. B. Teli, H. M. Shinde, V. M. Bhuse, K. M. Garadkar
Summary: A CdS quantum dots sensitized TiO2 nanocrystalline photoanode was developed on conducting FTO substrates, which served as the working electrode in photoelectrochemical cells. The CdS quantum dots thickness was controlled by cycles of the SILAR process. The TiO2/CdS photoanodes were analyzed and characterized using various techniques. The PEC performance of the TiO2/CdS photoanode showed good power conversion efficiency, reaching 1.32% and 3.52% for 5 and 10 cycles, respectively.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Engineering, Electrical & Electronic
Prashant H. Shinde, Yogita Padwal, Sanjeewani R. Bansode, Ratna Chauhan, Shrikant Charhate, Rishi B. Sharma, Hassan Fouad, Chiaki Terashima, Suresh W. Gosavi, Dattatray J. Late
Summary: The zinc sulphide-reduced graphene oxide nanocomposite has been synthesized and investigated for its potential use in photocatalysis for dye degradation. The combination of ZnS and rGO results in enhanced photocatalytic properties, with rGO acting as a support for ZnS nanoparticles and preventing their agglomeration.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Prashant H. Shinde, Yogita Padwal, Yogesh Waghadkar, Hassan Fouad, Chiaki Terashima, Ratna Chauhan, Shrikant Charhate, Muthupandian Ashokkumar, Suresh W. Gosavi, Dattatray J. Late
Summary: We have successfully synthesized ZnS-MoS2 nano-heterostructure via hydrothermal method and studied its photocatalytic activity under sunlight. The nano-heterostructure exhibited efficient charge separation and extended light absorption, leading to the generation of electron-hole pairs for the degradation of MB dye molecules. The optimized ZnS-MoS2 sample synthesized at 48 h showed excellent performance with 97% degradation in 30 min, attributed to enhanced crystallinity, good charge carrier ability, optimal heterojunction formation, and well-defined morphology with reduced defects.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Rohini P. Patil, Ankita S. Nikam, Shivanand B. Teli, Ashkan Takaloo, Rajanish K. Kamat, Tukaram D. Dongale, Pradip D. Kamble, Kalyanrao M. Garadkar
Summary: The present work reports the chemical synthesis of NiFe2O4 nanoparticles and their application as a switching layer material in resistive switching devices. The material's phase, composition, optical properties, and morphology were analyzed using various techniques. The fabricated device showed bipolar resistive switching with good endurance and retention properties. The conduction and resistive switching mechanisms of the device were also studied.
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Amruta Koli, Abhishek Kumar, Akshata Pattanshetti, Amit Supale, Kalyanrao Garadkar, Jian Shen, Jasmin Shaikh, Supareak Praserthdam, Radha Kishan Motkuri, Sandip Sabale
Summary: This work presents an efficient method for synthesizing hierarchically porous carbon using wheat bran waste. The obtained carbon material shows high CO2 capture capacity, rapid dye removal capacity, and superior electrocatalytic activity.
Article
Chemistry, Organic
Rohant Dhabbe, Vinayak Gawade, Kabir Kumbhar, Sandip Sabale, Kalyanrao Garadkar
Summary: In this study, Ag metal was loaded on Zr-doped-N-TiO2 (AgZrT) nanocomposites (NCs) using a microwave-assisted impregnation reduction method. The aim of this work was to investigate the effect of Ag loading on the structure, chemistry, and photoactivity of Zr-doped-N-TiO2 (ZrT). The NCs were characterized using various techniques including XRD, HRTEM, EDS, and XPS. The results confirmed the presence of metastable anatase phase and the existence of Ti, Zr, and Ag in the NCs.
INDIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Epicurioua A. Frazier, Rajendra P. Patil, Chandrakant B. Mane, Daryoush Sanaei, Fahad Asiri, Seong S. Seo, Hamidreza Sharifan
Summary: This study investigates the potential transformation of pure luteolin in exposure to titanium oxide nanoparticles (TiO2NPs). The concentration of TiO2NPs showed a positive correlation with the structural alteration of luteolin content, with around 20% of luteolin structure being altered in the presence of 100 ppm TiO2NPs. The study also confirmed the adsorption of luteolin onto the surface of TiO2NPs.
Article
Chemistry, Multidisciplinary
Chiteri Gautam, Devyani Srivastava, Gabriele Kociok-Kohn, Suresh W. Gosavi, Vinod K. Sharma, Ratna Chauhan, Dattatray J. Late, Abhinav Kumar, Mohd. Muddassir
Summary: Two Schiff base complexes, [CuL2] (Cu-Sal) and [CoL3] (Co-Sal), were synthesized and characterized. Crystal structure analysis showed a square planar geometry around Cu(ii) and various intermolecular non-covalent interactions in Cu-Sal. Both complexes were used as sensitizers in TiO2 based dye sensitized solar cells (DSSCs), and Co-Sal exhibited better photovoltaic performance than Cu-Sal due to improved light absorption and dye loading.
Article
Chemistry, Multidisciplinary
Vinayak V. Gawade, Shivanand B. Teli, Sandip R. Sabale, Rohant V. Dhabbe, Kiran S. Dhanavade, Kalyanrao M. Garadkar
Summary: In this study, a unique green method was used to prepare eco-friendly and cost-effective ZnO-SnO2 nanocomposite, which showed high photocatalytic activity for dye degradation. The prepared ZnO-SnO2 NCs exhibited mesoporous structure with high surface area, and the band gap decreased with the increase of ZnO content. The photocatalytic efficiency of ZnO-SnO2 NCs for the degradation of methyl orange and methylene blue dyes was significantly higher compared to individual ZnO and SnO2.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
