Article
Environmental Sciences
J. F. Joe Sherin, T. C. Bessy, S. Asha, C. Vijaya Kumar, Dina Huessien, M. R. Bindhu, Rabab Ahmed Rasheed, Khaloud Mohammed Alarjani
Summary: A novel photocatalyst based cobalt doped zinc ferrites nanoparticles (Co-ZnFe2O4 NPs) was prepared and characterized in this study. The results showed that the amorphous ferrites of the samples disappeared with increasing calcinations temperature, affecting the band gap energy and the intensity of photoluminescence peak. Cobalt substitution improved the saturation magnetization and antimicrobial activity of the samples.
ENVIRONMENTAL RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Sukhmanbir Kaur, Vishal Kumar Chalotra, Rohit Jasrotia, Venuka Bhasin, Sanjay Suman, Swati Kumari, Sanjay Thakur, Jahangeer Ahmed, Amir Mehtab, Tokeer Ahmad, Ranjit Singh, Sachin Kumar Godara
Summary: In this study, Cr-substituted cobalt nanoferrites were successfully prepared using sol-gel auto-combustion technique, exhibiting high saturation magnetization and coercivity for applications in data recording and EMI shielding. Raman spectroscopy showed crystal straining, and antibacterial testing indicated inhibition against both gram-negative and gram-positive bacteria.
Article
Physics, Applied
V. S. Sharon, Veena E. Gopalan, Imaddin A. Al-Omari, K. A. Malini
Summary: This paper reports a potential and easy method to prepare nickel ferrite nanoparticles with improved dielectric and magnetic properties by doping with zinc. The zinc doping in nickel ferrite nanoparticles is helpful in modifying the dielectric properties and thereby designing materials matching the application requirements. The enhanced dielectric and magnetic properties inherited by Zn doping in nickel ferrite (NFO) nanoparticles suggest the improved potential of these superparamagnetic NZFO nanoparticles for various applications.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2022)
Article
Materials Science, Multidisciplinary
Baljinder Kaur, Shikha Rana, Balwinder Kaur, Anupinder Singh, Meenakshi Dhiman, N. S. Negi, Partha Khanra
Summary: The synthesis of magnesium manganese-doped nano-ferrite material (Mg0.9Mn0.1Fe2O4) with excellent physicochemical properties using a sol-gel auto-combustion method assisted by ethylene glycol (EG) and melamine (Mel) was investigated. Varying the ratio of EG to Mel, a series of five ferrite materials were synthesized and their magnetic properties were analyzed by vibrating sample magnetometer (VSM). The results showed that increasing the Mel content with EG improved the saturation magnetization (Ms) and reduced the coercivity. Dielectric characteristics, surface chemical nature, crystallinity, and morphology of the material were also studied. Comparatively, the synthesized ferrite material at lower temperature exhibited similar magnetization to high-temperature calcined nanoferrites.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Chemistry, Physical
Smitha Bhaskaran, Imaddin A. Al-Omari, E. Veena Gopalana
Summary: In this study, a series of cobalt substituted copper ferrite nanoparticles were prepared using a modified sol-gel auto combustion method. Structural analysis revealed a structural transition and variation in crystallite size and lattice parameter with cobalt substitution. Magnetic measurements showed an increasing saturation magnetization with cobalt concentration, and the variations in coercivity and magnetocrystalline anisotropy were also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Junaid Kareem Khan, Muhammad Khalid, Ghulam Mustafa, Zaheer Uddin, Murtaza Saleem, Arif Akhtar Azam
Summary: This work focuses on the preparation and characterization of La-doped Mn-Co spinel ferrite nanoparticles. The study reveals that the doping of La3+ ions alters the electrical and magnetic properties of the ferrite materials, making them suitable for microwave and charge storage applications, as well as soft magnetic applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Review
Materials Science, Ceramics
P. Annie Vinosha, A. Manikandan, A. Sherley Judith Ceicilia, A. Dinesh, G. Francisco Nirmala, A. Christy Preetha, Y. Slimani, M. A. Almessiere, A. Baykal, Belina Xavier
Summary: Researchers have focused on characterizing and synthesizing zinc substituted cobalt ferrite nanoparticles due to their potential applications in various technological and industrial fields. These nanoparticles exhibit high magnetic, optical, electrical, and dielectric properties, making them promising candidates for applications in fields such as biomedicine, electronics, and consumer electronics.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
T. R. K. Pydiraju, Srinivasa K. Rao, Appa P. Rao, Chaitanya M. Varma, Satish A. Kumar, H. K. Rao
Summary: The study indicates that increasing the cadmium content can enhance the performance of magnetic core materials for high-frequency operation, with the requisite characteristics for high-frequency application. Experimental and analytical results suggest that cadmium primarily occupies specific lattice points of cobalt ferrite, leading to improved saturation magnetization and DC resistivity of the samples.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Mandeep Kaur, Pawandeep Kaur, Shalini Bahel
Summary: Magnetic, elastic, electromagnetic, and microwave absorption properties of cobalt-substituted zinc spinel ferrites Zn1-xCoxFe2O4 (0.00 <= x <= 1.00, Delta x = 0.25) fabricated via the sol-gel citrate route are analyzed. The hysteresis loops of constituent ferrites revealed the rapid rise in saturation magnetization and coercivity with the doping of cobalt ions. Complex permittivity (epsilon(r)) and complex permeability (mu(r)) are analyzed using a vector network analyzer in Ka-band. The absorption is maximized by tuning the thickness of the sample from 0.8 mm to 3.5 mm using the quarter wavelength model. Maximum absorption of 99.14% at a matching frequency of 34.60 GHz and a matching thickness of 1 mm is obtained by the composition with x = 0.75. The prepared ferrite composition proves to be an efficient microwave-absorbing material at high frequencies ranging from 26.5 to 40 GHz.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Salma Aman, Naseeb Ahmad, Badriah S. Almutairi, Muhammad Bilal Tahir, H. Elhosiny Ali
Summary: Magnetic nanoparticles have attracted widespread attention due to their versatility and potential applications. In this study, spinel ferrite nanoparticles were synthesized using the sol-gel approach and their characteristics were investigated through electrical and microwave measurements.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Ceramics
Ghulam Mustafa, Muhammad Khalid, Ali Dad Chandio, Kiran Shahzadi, Zaheer Uddin, Junaid Kareem Khan, Naimat Ullah Channa, Zaheer Abbas Gilani, H. M. Noor ul Huda Khan Asghar
Summary: A series of lanthanum-doped nickel ferrites were synthesized and their dielectric properties were studied. The results showed that the La doping induced lattice strain and affected the lattice constant, resulting in changes in dielectric loss and dielectric constant. The materials exhibited the most stable dielectric properties at high frequencies, making them potential candidates for microwave devices.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Abdulmumeen Lohmaah, Komkrich Chokprasombat, Supree Pinitsoontorn, Chitnarong Sirisathitkul
Summary: The study demonstrates the substitution of copper in barium hexaferrite crystals as a cost-effective way to achieve alterable magnetic properties. Different substitution levels of Cu influence the morphology and magnetic properties of the crystals significantly.
Article
Physics, Condensed Matter
Shahida Akhter, M. A. Hakim, S. M. Hoque, H. N. Das
Summary: In this paper, a series of Zn-substituted Cu1-xZnxFe2O4 ferrites were synthesized to explore disorder magnetic behavior. The magnetic properties such as saturation magnetization, non-saturation magnetization, Curie temperature, and coercivity were studied in detail. The presence of long-range and short-range ferromagnetic orders, as well as various disorder magnetic transitions, were observed in the Cu-Zn ferrites with different Zn content.
SOLID STATE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Rabia Ramzan, Muhammad Tariq, Muhammad Naeem Ashiq, Hind Albalawi, Imtiaz Ahmad, M. H. Alhossainy, Syeda Rabia Ejaz, Rabia Yasmin Khosa, Hafiz Muhammad Tahir Farid, Hasan M. Khan, Tahani Al-Muhimeedh, Abeer A. AlObaid
Summary: The sol-gel technique is used to produce the series of ferrites with the chemical formula BaYyFe2-yO4. X-ray diffraction data shows all samples have a cubic structure. With the increase of yttrium content, lattice parameters and electrical parameters of the samples also increase.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Multidisciplinary Sciences
Omar H. Abd-Elkader, Nasrallah M. Deraz, Lotfi Aleya
Summary: ZnxNi1-xFe2O4 (x = 0 and 0.3) nanoparticles were successfully synthesized using a glycine-mediated combustion route, and their properties were characterized using various methods. The substitution of Ni ions with Zn ions led to changes in lattice parameters, crystallite size, and band widths of the ferrites. The cation distribution and magnetic characteristics of the ferrites were also investigated, showing that Zn0.3Ni0.7Fe2O4 nanoparticles exhibited higher magnetization compared to NiFe2O4 nanoparticles. The anisotropy of the nickel ferrite increased with the substitution of Ni with Zn. TEM analysis revealed the formation of spinel nanocrystalline particles with low agglomerations.
Article
Materials Science, Ceramics
Shagufta Gulbadan, Muhammad Azhar Khan, Ghulam Abbas Ashraf, Khalid Mahmood, Muhammad Shahid, M. Irfan, Abrar Ahmad
Summary: Ba0.6Sr0.4-xYbxFe12-yCoyO19 M-type hexaferrite was synthesized using the auto combustion sol-gel process and sintered in a muffle furnace. XRD, FTIR, Raman, and Photoluminescence spectroscopies were used to analyze the samples. The XRD patterns confirmed the single phase of the synthesized samples. Changes in Yb-Co concentration affected lattice parameters and unit cell volume. FTIR spectroscopy revealed the formation of multiple absorption bands. Raman spectra showed strain in the unit cell. PL spectra exhibited emissions in the range of 630 nm-700 nm. The substitution improved dielectric losses and AC conductivity. The findings suggest that samples with appropriate cationic substitution can be used for microwave and high-frequency applications.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Muhammad Arshad, Muhammad Azhar Khan, Ghulam Abbas Ashraf, Khalid Mahmood, Muhammad Imran Arshad
Summary: A series of (Zr-Co) substituted Y-type polycrystalline hexaferrite were fabricated by sol-gel auto combustion method, and their structural and electrical properties were investigated. The addition of Zr4+-Co2+ metal cations resulted in an increase in lattice parameters and a decrease in grain size. The formation of pure single-phase Y-type hexaferrites was confirmed by X-ray powder diffraction and FTIR spectra. The electrical resistivity, dielectric properties, and complex impedance spectroscopy indicated that the substitution of Zr4+-Co2+ ions significantly influenced the conduction and dielectric behavior of the nano ferrite materials.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Muhammad Azhar Khan, Sohail Afzal, Shagufta Gulbadan, Khalid Mahmood, Ghulam Abbas Ashraf, Majid Niaz Akhtar
Summary: Nano-crystalline Gd-substituted X-type hexaferrites with different Gd concentrations were synthesized and their properties were studied. X-ray diffraction confirmed the single and pure phases of hexagonal ferrites. The dielectric properties showed frequency dependence and suggested potential applications in high-frequency devices and supercapacitors. Raman spectra and SEM images further supported the findings.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Anwar ul Haq, Sadia Sagar Iqbal, Afaq Ahmad, Tasawer Shahzad Ahmad, Abu Bakar, Shahid M. Ramay
Summary: The opto-electronic properties and mechanical stability of A2TlBiI6 (A = Cs and Rb) were investigated using density functional theory. The results showed that these halide double perovskite materials exhibit strong structural and dynamical stability, with direct band gaps of 2.0 and 2.1 eV for Cs2TlBiI6 and Rb2TlBiI6, respectively. These materials show promising potential for use in multi-junction solar cells for renewable energy applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
Maria Khalil, Aneeqa Bashir, Eman A. Alghamdi, Abubaker A. Siddig, Shahid M. Ramay, Murtaza Saleem
Summary: Titanium oxide (TiO2) is an important semiconductor material with promising optoelectronic, thermoelectric, and photovoltaic applications. The effect of dopant on TiO2 properties was investigated using first-principles calculations and density functional theory. Thin films were fabricated using reactive magnetron sputtering, and analysis showed the formation of the rutile phase of Titania. The study revealed that oxynitrides thin films with epsilon near zero response are suitable for enhanced optoelectronic and thermoelectric applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Swah Mohd. Nashre-ul-Islam, Kamala Kanta Borah, Muhammad Asam Raza, Fureya Elif Ozturkkan
Summary: A new Zn(II) coordination polymer based on o-phthalato and 2-aminopyridine has been synthesized and characterized. The stability and non-covalent interactions of the compound in the solid state have been investigated, and its potential as an anti-SARS-CoV-2 drug has been evaluated through molecular docking and ADMET calculations.
Article
Environmental Sciences
M. Abdullah, G. Murtaza, Muhammad Azhar Khan
Summary: CuFe2O4 nanoparticles were synthesized via the sol-gel auto combustion method and hybridized with layer-structured graphene. The nanoparticles exhibited a crystallite size up to 53 nm, with variations depending on the copper ferrite content. Fourier transform infrared spectroscopy confirmed the presence of carboxyl stretching, aromatic stretching, and Fe-O bonds. Scanning electron microscopy images revealed the surface morphology of the nanoparticles and nanocomposites, while vibrating sample magnetometer results showed their magnetic properties. Energy dispersive X-ray spectroscopy and Brunauer-Emmett-Teller surface area analysis confirmed the composition and surface characteristics of the materials. The composite demonstrated excellent adsorption capacities for As(III) and As(V) due to the synergistic effect of CuFe2O4 and graphene.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Biochemistry & Molecular Biology
Muhammad Asam Raza, Muhammad Waseem Mumtaz, Seyhan Ozturk, Muhammad Latif, Adnan Ashraf, Necmi Dege, Onur Erman Dogan, Erbil Agar, Shafiq Ur Rehman, Awal Noor
Summary: The present study aimed to assess the in vitro and in silico potential of two Schiff bases synthesized using a reported method. The structures of the compounds were determined using spectroscopic techniques and single-crystal XRD. Molecular docking studies and in vitro assessment suggested that these compounds could act as enzyme inhibitors against acetylcholine esterase (AChE) and butyrylcholine esterase (BChE).
Article
Physics, Multidisciplinary
Anwar ul Haq, Tasawer Shahzad Ahmad, Muhammad Amin, Abu Bakar, A. Afaq, Nimra Ehsan, Shahid M. Ramay, Abubaker Ahmed Siddig
Summary: In this study, the structural, elastic, and optoelectronic properties of cubic double halide perovskites A(2)AgAlI(6) (A = Na, K, Rb) were calculated and their potential application in solar panels was indicated.
Article
Chemistry, Physical
Affifa Qayyum, Muhammad Okash ur Rehman, Farooq Ahmad, Muhammad Ahmed Khan, Shahid M. Ramay, Shahid Atiq
Summary: Researchers have synthesized a series of perovskite materials with general formula La1-xNdxNiO3 (x=0,0.05,0.1,0.15) through a cost-effective sol-gel auto-combustion method, which can be used as electrode material in supercapacitors. The synthesized samples were confirmed through X-ray diffraction, and their crystal structure parameters were determined. Field emission scanning electron microscopy showed the presence of well-defined and uniformly distributed nano-spheres, nano-rods, and nano-size particles. The electrochemical analysis demonstrated that La0.85Nd0.15NiO3 exhibited the highest specific capacitance of 64.381 F/g at a scan rate of 0.01 Vs-1 through cyclic voltammetry. The galvanic charge/discharge tests showed power density and energy density values of 846.56 W/kg and 20.92 Wh/kg, respectively. This comprehensive study highlights the potential of these composite materials for supercapacitor-based applications.
SOLID STATE IONICS
(2023)
Article
Agriculture, Dairy & Animal Science
Wen Zou, Sijia Lu, Jia Wang, Yixiao Xu, Muhammad Akbar Shahid, Muhammad Usman Saleem, Khalid Mehmood, Kun Li
Summary: This study aimed to evaluate the effects of microplastic (MP) exposure on the growth performance and gut microbiota of chickens. The results showed that MP exposure significantly affected the growth performance of chickens and led to an imbalance in the gut microbiota. This study provides evidence of the health threat caused by MP contamination and its relevance to environmental quality and poultry health.
Review
Materials Science, Multidisciplinary
Zeshan Ali Sandhu, Muhammad Asam Raza, Nasser S. Awwad, Hala A. Ibrahium, Umme Farwa, Sawera Ashraf, Arooj Dildar, Eman Fatima, Sufyan Ashraf, Furqan Ali
Summary: This study investigates the rapidly developing field of metal-organic frameworks (MOFs) as essential components for new energy storage technologies. Due to their distinctive structures and configurable porosities, MOFs provide a fascinating platform for energy storage. The study provides a in-depth understanding of the energy storage potential and recent developments of MOFs.
MATERIALS ADVANCES
(2023)
Review
Materials Science, Multidisciplinary
Zeshan Ali Sandhu, Muhammad Asam Raza, Umme Farwa, Samia Nasr, Ibrahim Sayed Yahia, Seerat Fatima, Mehmuna Munawar, Yousra Hadayet, Sufyan Ashraf, Haseeb Ashraf
Summary: This review article provides a comprehensive overview of recent advancements in the synthesis of metal sulfide nanoparticles (MSNs) and their application in dye degradation. It discusses both conventional and response surface methodology (RSM) optimization approaches and highlights recent research on optimizing the synthesis conditions for various MSNs. The article also presents a discussion on the photocatalytic performance of MSNs in the degradation of various organic dyes.
MATERIALS ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Zaka Ullah, Abdul Majeed, Javed Rehman, Ejaz Ahmad Khera, Muhammad Azhar Khan, Fayyaz Hussain, Norah Salem Alsaiari, Muhammad Naeem Khan, Khadijah Mohammed Saleh Katubi, Van An Dinh
Summary: Ba1-xSrxZr0.3Ti0.7O3 materials with different Sr concentrations were synthesized using solid state reaction method. The structural properties and dielectric properties of the samples were investigated. The results showed that the diffusivity and dielectric constant varied with increasing Sr concentration.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Chemistry, Physical
Muhammad Danish, Alia Ashraf, Zeshan Ali Sandhu, Muhammad Asam Raza, Ali Haider Bhalli, Abdullah G. Al-Sehemi
Summary: Nanocomposites of various metal sulfides were synthesized using a soft template method and characterized for their spectral, morphological, and electrochemical properties. The results showed that these composites exhibited desirable properties for potential energy storage applications.
JOURNAL OF MOLECULAR STRUCTURE
(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)
