Article
Materials Science, Multidisciplinary
C. Murugesan, L. Okrasa, K. Ugendar, G. Chandrasekaran, Xiaodi Liu, Dongfeng Diao, Jun Shen
Summary: The study investigates the structural, magnetic, and electrical properties of Mg1-xZnxFe2O4 nanoferrites synthesized using a solvent-free combustion route. The results show that the prepared samples have single-phase nature, and the size of the crystallites and the position of the vibrational modes vary with Zn. The magnetization is enhanced up to a certain point and then decreases, while the conductivity decreases gradually after a certain value.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Ceramics
Shipra Choudhary, Manisha Sharma, Venkata Krishnan, Satyabrata Mohapatra
Summary: This study successfully prepared magnetically separable CoFe2O4-ZnO hybrid nanostructures and characterized their structure and morphology using various techniques. CoFe2O4-ZnO exhibited significantly enhanced photocatalytic performance compared to pristine CoFe2O4 due to its high light utilization ability and heterojunction formation that delayed charge carrier recombination. The study provides an efficient solution for sunlight-responsive magnetically separable CoFe2O4-ZnO photocatalyst in wastewater purification.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Zaoxia Hou, Chenyang Liu, Jialuo Gong, Junjie Wu, Shuchen Sun, Mu Zhang, Xudong Sun
Summary: In this study, CoFe2O4/SWCNTs composites with necklace-like structures were successfully prepared using a simple solvothermal method. The composites exhibited low density and high wave absorption performance. By adjusting the experimental parameters, composites with different cobalt salt contents were synthesized, and the relative complex permeability and relative permittivity were studied in the frequency range of 2 to 18 GHz. The results showed that the electromagnetic absorption properties of the composites were significantly influenced by the microsphere densities and cobalt salt contents.
Article
Engineering, Electrical & Electronic
Anju Kumari, Kavita Kumari, Faheem Ahmed, Mohamad M. Ahmad, Jyotsna Sharma, Ankush Vij, Shalendra Kumar
Summary: The influence of Bi content on the properties of BiFeO3 was studied, and it was found that Bi0.05FeO3 nanoparticles exhibited the best polarization and dielectric properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
S. Ahmed, M. Atif, Atta Ur Rehman, S. Bashir, N. Iqbal, W. Khalid, Z. Ali, M. Nadeem
Summary: In this study, a core-shell-like CoFe2O4-BaTiO3 multiferroic nanocomposite was successfully developed via the wet chemical route, exhibiting high dielectric permittivity and moderate saturation magnetization and polarization values. The composite also showed enhanced energy storage efficiency and magnetoelectric coefficient, attributed to strong interfacial coupling and reduced leakage current, making it promising for multifunctional device applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Applied
I. Chihi, M. Baazaoui, N. Hamdaoui, M. Oumezzine, Kh. Farah
Summary: In this study, the impact of silver doping in magnesium-ferrite (MgFe2O4) synthesized via the sol-gel route was investigated. XRD refinement revealed that the doped samples exhibited a cubic spinel phase with metallic silver, while the undoped sample had a cubic structure with space group F d-3 m. Electrical measurements using complex impedance spectroscopy showed a decrease in electrical conductance with increasing silver content. Analysis of the impedance and electrical modulus normalization curves indicated the presence of short-range charge carrier motion.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2023)
Article
Chemistry, Inorganic & Nuclear
Ah Dhahri, Y. Moualhi, C. Henchiri, A. Benali, P. Sanguino, M. P. F. Graca, M. A. Valente, N. Abdelmoula, H. Rahmouni, B. F. O. Costa
Summary: In this study, the La0.67Ca0.2Ba0.13Fe0.97Ti0.03O3 perovskite structure was prepared using the auto combustion method. The morphologic and elastic properties of the compound were analyzed using electron microscopy and Raman spectroscopy techniques. The compound exhibited similar vibration modes to LaFeO3 structure and showed semiconductor behavior with significant contribution from grain boundaries to its electrical properties.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Pranav Kulkarni, R. Geetha Balkrishna, Debasis Ghosh, R. S. Rawat, Rohit Medwal, B. V. R. Chowdari, Zaghib Karim, M. Reddy
Summary: In this article, a simple and scalable one-pot molten salt synthesis of CoFe2O4 as electrode material for Lithium ion batteries was reported, showing high reversible capacity and rate performance at different current densities. Furthermore, the structural and morphological evaluation using ex-situ X-ray diffraction and ex-situ transmission electron microscopy confirmed structural degradation and formation of metal nanoparticles, Li2O, and amorphous nature of the electrode material after cycling. The one-pot molten salt synthesis approach was shown to be simple and suitable for large-scale production of electrode materials.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Ceramics
Svetlana V. Pershina, Boris D. Antonov, Ivan I. Leonidov
Summary: The glasses synthesized by melt quenching method exhibit a tendency of devitrification with increased MoO3 content and higher glass transition temperatures. Raman spectroscopy shows the presence of different structural units in the glasses, and the electrical conductivity increases with the MoO3 content.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Chemistry, Physical
Shalendra Kumar, Faheem Ahmed, Nagih M. Shaalan, Rajesh Kumar, Adil Alshoaibi, Nishat Arshi, Saurabh Dalela, Fatima Sayeed, Sourabh Dwivedi, Kavita Kumari
Summary: Spherical CoFe2O4 magnetic nanostructures were successfully synthesized via a microwave-assisted hydrothermal method. Characterization techniques including XRD, FE-SEM, EDX spectroscopy, HR-TEM, SAED, DC magnetization, and dielectric spectroscopy were used to investigate the prepared nanostructures. The results revealed that the nanostructures had a single-phase nature, ferromagnetic ordering at room temperature, and a normal dispersion behavior in dielectric spectroscopy.
Article
Engineering, Electrical & Electronic
Pradeep Prajapat, Saroj Dhaka, H. S. Mund
Summary: Nanocrystalline Mg-ferrites were synthesized using a low-cost sol-gel auto-combustion method in this study, and the effect of annealing temperature on their physical properties was investigated. The results showed that both the crystalline size and saturation magnetization of the materials increased with increasing annealing temperature.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
K. Ramakrushna Achary, Y. Bhaskara Rao, L. N. Patro
Summary: LaF3 based fast ion conducting materials with nanometer-sized crystallites obtained by mechanical milling show enhanced conductivity compared to un-milled forms. The influence of bivalent dopant BaF2 and co-dopant CaF2 on LaF3 conductivity and structural properties is studied, with differences in ionic radii and valence state explaining the observed results.
Article
Engineering, Electrical & Electronic
Subrat Kumar Barik, Koustav Kashyap Gogoi, Sudarsan Sahoo, Hoe Joon Kim, Sugato Hajra
Summary: In the current era, the focus is on meeting energy security challenges globally due to excessive energy demands. Fossil fuels like coal and petroleum are fading out, leading to renewable energy sources becoming an alternative medium and new scientific investment. Research is being carried out to enhance the efficiency of these devices, with multifunctional materials like BNLTO showing promise for producing low-cost energy devices with superior properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Silviu Polosan, Paul Ganea, Andrei Nitescu
Summary: Phosphate tellurite glasses were successfully synthesized by melt quenching, with a composition of 40%ZnO+40%P2O5+20%TeO2. Compared to glasses synthesized with H3PO4, those containing P2O5 showed greater chemical stability. Magneto-optical measurements revealed a specific transition associated with tellurium colloids, while densities and electrical conductivity increased with melting temperature.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Physical
D. A. Monteiro, M. M. Costa, R. R. F. Bento
Summary: The BaZrO3 ceramics were synthesized with Bi(Zn1/2Ti1/2)O-3 and sintered to produce lead-free material for environmental concern. XRD analysis confirmed perovskite-type cubic structure for BaZrO3 ceramics with different molar ratios, and the addition of Bi(Zn1/2Ti1/2)O-3 increased the conductivity while SEM confirmed material density.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Amna Akmal, Faiza Arshad, Riffat Shakeel, Tayyab Shabir, Saira Riaz, Shahzad Naseem
Summary: Spintronics is a new field that utilizes electron spin and charge to redefine modern information technology. Various spintronic devices, such as GMR-based devices and MRAMs, have been researched in recent years. Conventional ferromagnetic materials with spin asymmetry have been the basis of these devices. Half metallic ferromagnetic materials, particularly Heusler alloys, are considered the most promising candidates due to their high spin polarization. Previous investigations of Heusler alloys were mainly theoretical, with few experimental reports using high-cost vacuum-based methods. This study experimentally investigates the structural, electronic, and magnetic properties of the Co2MnSn Full Heusler alloy using density functional theory by ADF. The results predict the half metallic and asymmetric behavior of the Co2MnSn Full Heusler alloy with an L21 structure. The thin films of cobalt manganese tin are prepared by the electrodeposition method, and the magnetic properties are observed to vary with the applied voltage.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nanoscience & Nanotechnology
Faheem Ahmed, Ahmad Umar, Shalendra Kumar, Nagih Mohammed Shaalan, Nishat Arshi, Mohd Gulfam Alam, P. M. Z. Hasan, Shahid M. Ramay, Rizwan Khan, Abdullah Aljaafari, Adil Alshoaibi
Summary: In this study, a highly stable capacitive deionization (CDI) electrode was fabricated using reduced graphene oxide (RGO) as the positive electrode and spherical-like manganese dioxide nanoparticles decorated RGO sheets (MnO2/RGO) as the negative electrode, which selectively captured salt ions from saline solution. The MnO2/RGO electrodes exhibited a large specific capacitance and lower internal resistance, making them suitable for desalination applications. The MnO2/RGO//RGO-based CDI device showed higher salt uptake capacity and average salt adsorption capacity compared to recent electrode materials, indicating its potential for producing portable drinking water from seawater.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Crystallography
Shahid M. Ramay, Mohammed H. Aldosary, Ghulam M. Mustafa, Sadaf Saba, Shahid Atiq, Sikandar Aftab, M. A. Ebdah
Summary: Double perovskites are promising functional materials with high durability due to their flexible cation coordination selection. We synthesized pristine and Cu2+-doped Ba2NiWO6 and studied their structure, morphology, and dielectric behavior. Both compositions exhibited cubic crystal structure, but Cu2+ integration reduced the crystallite size and induced agglomeration of spherical-shaped grains. Cu2+ doping resulted in space charge accumulation at grain boundaries, promoting space charge polarization and increasing the dielectric constant. These findings make these compositions suitable for advanced miniaturized electronic devices.
Article
Materials Science, Multidisciplinary
Tahir Iqbal, Khizar Ul Haq, M. Irfan, Maria Khalil, Shahid M. Ramay, M. A. Ebdah, Murtaza Saleem
Summary: PVDF polymer composites with incorporated transition metal oxides show enhanced optical response. The presence of ZnO and NiO nanoparticles as fillers in PVDF thin films was confirmed by X-ray diffraction analysis and scanning electron microscopy. Spectroscopic ellipsometry was used to extract optical parameters such as refractive index, absorption coefficient, and optical conductivity. The results show that these nanocomposites have promising optical properties for photovoltaic applications.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Materials Science, Ceramics
Tanzeela Batool, Zaheer H. Shah, Hina Ashraf, Daoud Ali, S. Shamaila, Tehmina Anjum, Shahzad Naseem, Saira Riaz
Summary: Crop yield loss due to pathogenic infections costs billions of dollars annually. The use of antibiotics in agriculture is limited, necessitating the development of alternative protocols to combat microbial pathogens. Nanoparticles with antimicrobial properties, such as iron oxide, show potential in protecting plant/crop production and suppressing plant pathogens. This study synthesized iron oxide nanoparticles using the sol-gel method and magnetic field annealing, and demonstrated their efficacy in inhibiting bacterial growth and enhancing photocatalytic activity. In vitro and in vivo experiments also revealed improved plant growth parameters after treatment with iron oxide nanoparticles.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Shahid M. Ramay, Mohammed Shahabuddin, Nasser S. Alzayed
Summary: WO3-based semiconductor materials exhibit excellent electronic and optical properties. This study investigated the structure, electronic properties, and optical properties of WO3 materials with different compositions through simulations and experiments. It was found that Gd doping had a significant impact on the electronic and optical properties of the materials, making them more suitable for photovoltaic and optoelectronic applications.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Biochemistry & Molecular Biology
Muhammad Akram Raza, Zakia Kanwal, Saira Riaz, Maira Amjad, Shafqat Rasool, Shahzad Naseem, Nadeem Abbas, Naushad Ahmad, Suliman Yousef Alomar
Summary: The study demonstrates the green synthesis of silver nanoparticles from Mangifera indica leaves' extract and investigates their antibacterial efficacy against Aeromonas hydrophila in Cirrhinus mrigala. The synthesized Mi-AgNPs were found to be polycrystalline and spherical with an average size of 62 ± 13 nm. The results show that Mi-AgNPs treatment can restore the altered biochemical, hematological, histological, and oxidative biomarkers in the challenged fish.
Article
Biochemistry & Molecular Biology
Ramsha Hafeez, Zakia Kanwal, Muhammad Akram Raza, Shafqat Rasool, Saira Riaz, Shahzad Naseem, Shifa Rabani, Imran Haider, Naushad Ahmad, Suliman Yousef Alomar
Summary: Green-synthesized metallic nanoparticles from plant extracts show potential antibacterial activity with reduced toxicity to animal cells and hosts. This study demonstrated that the application of these nanoparticles, specifically silver nanoparticles synthesized from Citrullus colocynthis and Psidium guajava, improved the survival rate and promoted recovery in Labeo rohita infected with Aeromonas hydrophila. Hematological, histological, oxidative stress, and cytokine analysis indicated positive effects of the nanoparticles on various bio-indicators and immune response in infected fish.
Article
Chemistry, Multidisciplinary
Abdul Quader, Ghulam M. Mustafa, Shahid M. Ramay, Shahid Atiq
Summary: The defect fluorite structure with A(2)B(2)O(7) composition has great potential in modern smart electrical devices. The synthesized Nd2-2xLa2xCe2O7 series exhibits the expansion of the fluorite structure and decreased grain size with the incorporation of La. However, the exact composition without impurity elements is confirmed. The pure Nd2Ce2O7 shows the highest energy storage efficiency and other desirable features for efficient energy storage.
Article
Materials Science, Multidisciplinary
Faisal Alresheedi, Rida Yasin, Sadia Nazir, N. A. Noor, A. Laref, Saira Riaz, Shahzad Naseem
Summary: This study thoroughly explains the electronic behavior, stability, optical and thermoelectric characteristics of CdKF3 and CdKCl3 halide perovskite. It demonstrates the importance of these materials for energy harvesting and thermoelectric device applications.
RESULTS IN PHYSICS
(2023)
Article
Physics, Condensed Matter
Qammar Abbas, Imran Sadiq, Hasan M. Khan, Farhan Sadiq, Muhammad Jamshaid Shabbir, Muhammad Shahbaz, Samreen Saeed, Ghulam M. Mustafa, Saira Riaz, Shahzad Naseem
Summary: This study investigates the impact of V2+ substitution on the structural, optical, electrical, and dielectric behavior of Ca2-xVxFe8O14 (x = 0.0, 0.4, and 0.6) hexaferrite. The results show that V2+ replacement affects the crystal structure and properties of the samples, making them potentially useful for high-frequency operating devices and magnetic storage systems.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Chemistry, Inorganic & Nuclear
Maryam Anwar, Zohra Nazir Kayani, Amna Hassan, Talat Zeeshan, Saira Riaz, Shahzad Naseem
Summary: This study explored the impact of Sm on the photocatalytic and antibacterial properties of ZnO. The results showed that Sm-doped ZnO nanostructures exhibited enhanced crystallite size and demonstrated effective photocatalytic and antibacterial activities. Potential applications of Sm-doped ZnO include sensor development, photovoltaic panels, wastewater treatment, and water-splitting.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Zohra Nazir Kayani, Ifra Sheri, Salma Waseem, Saira Riaz, Shahzad Naseem
Summary: Ba-doped TiO2 thin films were fabricated using the sol-gel dip-coated method. X-ray diffraction confirmed the formation of the anatase phase. With the increase of Ba doping, the size of the crystallite decreased. The bandgap of pure TiO2 and Ba-doped TiO2 thin films was in the range of 3.15-2.94 eV, which is beneficial for enhancing solar cell efficiency and water treatment. Ba-doped TiO2 thin films exhibited low dielectric constant suitable for high-frequency devices and showed ferromagnetism. The antibacterial activity of Ba-doped TiO2 was higher than that of pure TiO2, making it suitable for application in nanomedicine.
MATERIALS RESEARCH BULLETIN
(2024)