Article
Engineering, Electrical & Electronic
Nawshin Yeasmin, M. K. R. Khan, M. M. Rahman, M. S. Sarker
Summary: This study successfully deposited nanocrystalline spinel thin films with different nickel contents using spray pyrolysis, and found that the Ni-Zn ferrite thin films exhibit semiconductor properties, with electrical characteristics varying with nickel content.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
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
Materials Science, Multidisciplinary
D. Garzon, J. E. Diosa, C. Ostos, F. H. Sanchez, G. A. Munoz Medina, F. Sieves, O. Arnache
Summary: (Fe30Cu70)(96)B-4 (FCB) alloys were prepared by mechanical milling and characterized for structural, morphological, and magnetic properties with increasing milling time. The nanoparticles formed after 12 hours of milling exhibit superparamagnetic-like behavior at temperatures below 60 K despite being ferromagnetic at room temperature. The saturation magnetization and coercive field values change with milling time.
MATERIALS CHARACTERIZATION
(2021)
Article
Chemistry, Physical
Thomas Dippong, Mihaela Diana Lazar, Iosif Grigore Deac, Petru Palade, Ioan Petean, Gheorghe Borodi, Oana Cadar
Summary: This study investigates the effect of Mn2+ substitution for Co2+ in CoFe2O4 embedded in a SiO2 matrix on the structural, surface, morphological, and magnetic properties. With an increase in Mn content, particle size increases and magnetic properties change accordingly. The mesoporous structure facilitates the release of fine nanoparticles in aqueous environment.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
M. Elansary, M. Belaiche, Y. Mouhib, O. M. Lemine, N. Bentarhlia, I. Bsoul
Summary: Assessing the biocompatibility of CoFe(2-x-y-z)GdxSmyHozO4 nanoparticles synthesized by the auto-combustion method was conducted for the first time. The nanoparticles showed a quasi-spherical shape with size distribution of 24-51 nm. The magnetic properties of the nanoparticles can be tuned by doping for various biomedical applications. Sub-chronic toxicity evaluation in rats indicated no significant toxicity at doses below 250 mg/kg (oral) and 40 mg/kg (intraperitoneal), suggesting potential use in biomedical applications.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Chuan Chen, Tianhao Yao, Sen Qian, Qiang Zhang, Ximin Zhang
Summary: Spinel ferrites, especially nickel-zinc (NiZn) ferrites, are widely used due to their high electrical resistivity and low eddy current loss. However, the current synthesis routes for nano/micro-sized NiZn ferrites are time-consuming and costly, which hinders their large-scale production for practical applications.
Article
Engineering, Electrical & Electronic
M. S. Raja Seetharaman, P. Sivagurunathan
Summary: In this study, spinel ferrite nanoparticles with the chemical formula of MgxCo1 - xFe2O4 (x = 0.3, 0.5, 0.7) were successfully synthesized using the co-precipitation method. The structural, functional, morphological, and magnetic properties of the magnesium cobalt ferrite nanoparticles were discussed. The synthesized materials exhibited potential as high-density recording media applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Gabriele Barrera, Federica Celegato, Matteo Cialone, Marco Coisson, Paola Rizzi, Paola Tiberto
Summary: FePd alloys in thin film form exhibit versatile properties with the ability to fine-tune the surface at nanometric scale precision. In this study, Fe70Pd30 thin films were prepared and characterized, showing the impact of grain size and shape on properties. Various analytical techniques were used to provide a thorough understanding of the bimetallic thin films.
Article
Materials Science, Multidisciplinary
V. Ludhiya, N. Hari Kumar, Avula Edukondalu, D. Ravinder
Summary: In this study, rare earth Ce3+ ion doped Mg-Ni-Cu ferrites were synthesized using the solution gel auto-combustion method. The structural, morphology, optical, and dielectric properties of the synthesized ferrites were investigated, as well as their magnetic properties. The results confirmed the formation of the cubic spinel phase with the development of a secondary phase of cerium oxide CeO2. The synthesized ferrites exhibited nano-pores surface and spherical shape grains. The magnetic behavior showed ferromagnetic behavior, with coercivity and magnetic saturation values affected by Ce3+ substitution. The dielectric properties showed higher dielectric constant values and very low dielectric loss tangent values.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
R. Martinez Garcia, V. Bilovol, S. Ferrari, P. de la Presa, P. Marin, M. Pagnola
Summary: A nanostructured magnetic composite based on hexagonal ferrite BaFe12O19 and cubic ferrite NiFe2O4 was synthesized. The size of the nanoparticles in the composite was controlled by varying the synthesis conditions and heat treatments. The microstructure of the composites significantly influenced their magnetic properties, and composites with different size ratios exhibited different BH values.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Yanchun Zhang, Aimin Sun, Liqiong Shao, Zhaxi Suonan, Jingzhou Chen
Summary: In this study, Sr2+ ions-substituted cobalt ferrite samples were synthesized using sol-gel method, with XRD confirming a spinel structure. FTIR spectra revealed two characteristic bands related to intrinsic vibrations. SEM, EDS, and XPS were used to analyze morphology, chemical elements, and elemental state respectively. Magnetic data showed an increase in coercivity with higher Sr2+ ion content. UV-Vis spectroscopy and impedance spectroscopy were also used to investigate optical and electrical properties of the samples.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Naimatullah Channa, Muhammad Khalid, Ali Dad Chandio, Muhammad Saeed Akhtar, Junaid Kareem Khan, Ghulam Mustafa, Muniba, Zaheer Abbas Gilani
Summary: Copper-substituted manganese spinel ferrite nanoparticles were synthesized using a sol-gel self-combustion chemical route, with a copper concentration ranging from 0.0 to 0.5. The nanoparticles exhibited a face-centered cubic structure and preferred orientation along the (311) plane. Electrical and dielectric characteristics were investigated using impedance spectroscopy, showing a decrease in tangent loss with increasing copper concentration. The study suggests potential microwave applications for the prepared Mn1-xCuxFe2O4 spinel ferrite nanoparticles.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Yong Cheng, Tingzeng Wu, Longjun Xu, Chenglun Liu, Zao Jiang, Qiyuan Zhang, Yi Zou, Yan Chen, Jingya Li, Xiuzhu Liu
Summary: The novel composite magnetic photocatalyst MCC was prepared through hydrothermal and chemical precipitation methods. Among different samples, MCC10 with a magnetic carbon protective layer showed the best photocatalytic activity in degrading Rhodamine B under visible light irradiation. The introduction of a carbon interlayer can improve the separation efficiency of photo-induced electron-hole pairs, enhance photo-corrosion resistance, and achieve highly visible-light-driven photodegradation capability.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Agricultural Engineering
Ghazaleh Farokhi, Majid Saidi, Ali Taheri Najafabadi
Summary: This study aims to synthesize NixZn(1-x)Fe(2)O(4) (0 < 0.5) magnetic nanocatalysts for biodiesel production using neem oil esterification. Physicochemical properties of the nanocatalysts were analyzed using XRD, VSM, FESEM, and BET analysis. The effects of various parameters on the biodiesel yield were investigated and optimized using a central composite design approach. The optimized nanocatalyst showed a biodiesel yield of 93% and excellent efficiency in multiple reuse cycles.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Nanoscience & Nanotechnology
M. G. B. Ashiq
Summary: The aim of this research is to investigate the relaxation behavior of Co2+ ion-doped NiFe2O4 spinel ferrite nanoparticles for high-frequency devices applications. Cobalt-substituted nickel spinel ferrites with different cobalt concentrations were synthesized and analyzed. The synthesized nanoparticles were confirmed to have a spinel structure through XRD analysis. Various characterization techniques were used to study the structural and magnetic properties of the prepared samples. The obtained results suggest that the prepared materials are suitable for high-frequency and magnetic storage devices applications.
APPLIED NANOSCIENCE
(2023)
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
Chemistry, Physical
Amna Irshad, H. H. Somaily, Sonia Zulfiqar, Muhammad Farooq Warsi, Muhammad Imran Din, Khadija Chaudhary, Muhammad Shahid
Summary: In this study, NiAl2O4 and silver doped NiAl2O4 were synthesized using a sol-gel approach, and their composite with g-C3N4 was successfully prepared through ultrasonication. The characterization of the fabricated materials was done using various techniques, and the electrochemical behavior of the fabricated electrode materials was investigated using electrochemical techniques. The results showed that Ag-NiAl2O4@g-C3N4 nanocomposite was a more active electrode material compared to the other prepared electrodes.
JOURNAL OF ALLOYS AND COMPOUNDS
(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
Materials Science, Multidisciplinary
M. S. Akbar, M. A. Rafiq, A. Javed, M. N. Rasul, M. A. Khan, A. Hussain
Summary: Theoretical calculations were performed on the structural, elastic, magnetic, electronic, and thermoelectric properties of ARh2O4 (A = Co, Ni, Cu, Zn) oxides. The results show that these oxides are structurally and mechanically stable. They exhibit high anisotropic behavior in their mechanical properties and have ductile and covalent bonding nature in their elastic properties. The electronic properties reveal different conductive behaviors for each oxide, with some showing metallic, semimetallic, or p-type semiconductive behavior. Additionally, the oxides have magnetic exchange interactions and exhibit good thermoelectric properties, with ZnRh2O4 being the most promising candidate for thermoelectric devices.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Mohammad Aatif, Muhammad Asam Raza, Mohamed El Oirdi, Mohd Farhan, Muhammad Waseem Mumtaz, Muhammad Hamayun, Adnan Ashraf, Ghazala Muteeb
Summary: Bioassay-guided isolation of colchicine and caffeine from Camellia sinensis and Colchicum luteum, respectively, using a protease assay model. Structural validation was carried out using spectral techniques. Optimization of the purified compounds was performed using Gaussian software. Several global reactivity characteristics were determined to explain the diverse behavior of the compounds.
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
Materials Science, Ceramics
Muhammad Arshad, Muhammad Azhar Khan, Raqiqa Tur Rasool, Muhammad Imran Arshad, M. Irfan
Summary: The impact of Cr3+ substitution on the electrical and dielectric properties of Y-type hexaferrites was studied. The substitution slightly increased the lattice parameters and affected physical parameters such as porosity and specific surface area. The substitution also enhanced the room temperature electrical resistivity and reduced dielectric losses, making these hexaferrites efficient materials for high-frequency applications.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Shahana Zainab, Waseeq Ahmad Siddiqui, Muhammad Asam Raza, Adnan Ashraf, Muhammad Pervaiz, Faisal Ali, Umer Younas, Aimon Saleem, Muhammad Ashfaq, Muhammad Nawaz Tahir
Summary: In this study, mononuclear complexes of oxicam precursor with Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) metal ions were successfully prepared. Various techniques were used to confirm the synthesis of transition metal complexes, including UV/Vis, FT-IR, 1H NMR spectroscopies, elemental analysis, and magnetic susceptibility measurements. The coordination geometry of the Cu(II) complex 5 was determined to be square planar based on XRD analysis. The compounds showed potential for COX-I and COX-II inhibition, indicating their potential anti-inflammatory properties.
JOURNAL OF MOLECULAR STRUCTURE
(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
Chemistry, Physical
Majid Niaz Akhtar, Zainab Mufarreh Elqahtani, Sabih Qamar, Abdullah Almohammedi, M. Irfan, Muhammad Azhar Khan, Muhammad Yousaf, Atif Nazir, Yuzheng Lu, Mustafa Z. Mahmoud, Muhammad Aslam, Z. A. Alrowaili, M. S. Al-Buriahi
Summary: The absorption characteristics of Co, Cu, and Zn-doped Ni-Ce nano ferrites were investigated and it was found that the Zn-doped NiCe absorber showed excellent performance for Ku band absorption applications, making it suitable for next-generation multifunctional absorbers.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Xiaoli Wang, Ali Hassan, Mohamad Reda A. Refaai, Mahyuddin K. M. Nasution, Majid Niaz Akhtar
Summary: In the modern world, electromagnetic interference is a serious issue. To effectively prepare materials with excellent electromagnetic wave dissipation capabilities, researchers synthesized pompon-flower-like CoGd0.5Fe1.5O4 and sphere-like BiFeO3. The findings demonstrate that using BiFe as the first layer and CoGd as the second layer in a bi-layer absorber can improve impedance matching and achieve high absorption with a broad effective absorption bandwidth.
SURFACES AND INTERFACES
(2023)
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)
