Review
Chemistry, Analytical
Josue M. Goncalves, Lucas de Faria, Amanda B. Nascimento, Rafael L. Germscheidt, Santanu Patra, Lucas P. Hernandez-Saravia, Juliano A. Bonacin, Rodrigo A. A. Munoz, Lucio Angnes
Summary: This review examines the application of spinel ferrites in electrochemical sensors, including their combination with other materials to produce synergistic responses. These sensors exhibit high sensitivity and a wide concentration range for detecting compounds such as hydrogen peroxide, glucose, and bisphenol A, and show potential for many other applications.
ANALYTICA CHIMICA ACTA
(2022)
Article
Materials Science, Ceramics
Jianping Ai, Yaping Shuai, Min Hu, Lihong Cheng, Siling Luo, Wenkui Li, Zhiqin Chen, Liling Hu, Zehua Zhou
Summary: A novel class of high-entropy spinel ferrites (Mg0.2Co0.2Ni0.2Cu0.2Zn0.2)Fe2O4 have been successfully synthesized and investigated. The entropy plays a crucial role in reversible transformation and dominates the thermodynamic landscape. The as-fabricated high-entropy (Mg0.2Co0.2Ni0.2Cu0.2Zn0.2)Fe2O4 solid solution exhibits single-phase and uniform transition-metal element distribution.
CERAMICS INTERNATIONAL
(2023)
Article
Physics, Applied
S. Talebniya, Ibrahim Sharifi, M. R. Saeri, A. Doostmohammadi
Summary: In this study, ferrite spinel nanoparticles with five different metal ions (Co, Fe, Zn, Mn, and Cu) were synthesized by a co-precipitation method. The phase purity, crystal structure, and average crystallite size of the nanoparticles were characterized using XRD analysis. The magnetic properties were measured using a VSM, and it was found that manganese ferrite had the highest saturation magnetization while zinc ferrite had the lowest.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2022)
Article
Engineering, Multidisciplinary
Nuralhuda Aladdin Jasim, Shahlaa Esmail Ebrahim, Saad H. Ammar
Summary: This study describes the synthesis of cobalt-substituted zinc spinel ferrites using Rhodamine-B as a model organic molecule. The Co0.5Zn0.5Fe2O4 material showed non-uniform shapes and sizes of porous materials, while the Co0.3Zn0.7Fe2O4 sample exhibited a high Rh B dye destruction rate.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
N. Jahan, M. M. Uddin, M. N. I. Khan, F. -U. -Z. Chowdhury, M. R. Hasan, H. N. Das, M. M. Hossain
Summary: In this study, Yb-substituted Ni-Zn-Fe ferrites were synthesized using sol-gel auto combustion method, with various analyses confirming their structure and properties. The decrease in grain size, saturation magnetization, Bohr magnetic moment, and the increase in coercivity with increasing Yb3+ content were observed, along with a decrease in Curie temperature. The compositions displayed ferromagnetic order below Curie temperature and paramagnetic behavior above it, making them potential candidates for high-temperature magnetic device applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Mallikarjun Madagalam, Mattia Bartoli, Michele Rosito, Nicola Blangetti, Marco Etzi Coller Pascuzzi, Elisa Padovano, Barbara Bonelli, Sandro Carrara, Alberto Tagliaferro
Summary: To deepen the understanding of electron transfer at the electrochemical interface, the performance of ZnxNi1-xFe2O4 (x = 0, 0.2, 0.4, 0.6, 0.8, 1) nanomaterials in electrochemical sensing was studied. Nanomaterials were synthesized using a simple autocombustion synthesis procedure. The ZnFe2O4 sensor showed the best performances in terms of rate constant, peak-to-peak separation, sensitivity, and detection limit. Nanomaterials energy bands mapping with the experimental redox potentials was performed to predict electron transfer. The importance of surface states/defects in the electron transfer mechanism was highlighted.
Review
Engineering, Chemical
Preeti Thakur, Sonam Kumari, Satyendra Singh, Blaise Ravelo, Fayu Wan, Atul Thakur
Summary: Ferrites, particularly Mg-Zn ferrites, are highly regarded for their exceptional physical, chemical, and magnetic properties, making them of great importance for both scientific research and technological applications. The unique properties of Mg-Zn ferrites, such as high electric resistivity, Curie temperature, low coercivity, low eddy current, dielectric losses, low cost, and better environmental stability, contribute to their suitability for various applications including power transformers, microwave devices, computer memories, and telecommunications. Furthermore, the increasing interest in Mg-Zn ferrite nanoparticles for catalysts, antimicrobial potential, and sensor development highlights their potential for a wide range of applications.
CHEMBIOENG REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Matthew J. Evans, George H. Iliffe, Samuel E. Neale, Claire L. McMullin, J. Robin Fulton, Mathew D. Anker, Martyn P. Coles
Summary: The corresponding Al(mu-O)M complexes were isolated by the reaction of compounds containing Al-Mg and Al-Zn bonds with N2O. Electronic structure analysis revealed mainly ionic Al-O and O-M bonds in these complexes, featuring an anionic mu-oxo centre. The reaction with CO2 confirmed that these species correspond to the proposed intermediates in the formation of mu-carbonate compounds.
CHEMICAL COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Sai Zhang, Jia Wu, Fangyun Li, Li Li
Summary: The relationship between the morphology-microstructure and photogenerated charge efficiency of spinel ferrites was investigated. The results showed that spinel ferrites with smaller particles had higher separation and transfer rates of photogenerated electrons. Additionally, higher crystallinity was found to reduce the recombination rate of electron-hole pairs.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Milena P. Dojcinovic, Zorka Z. Vasiljevic, Vera P. Pavlovic, Dario Barisic, Damir Pajic, Nenad B. Tadic, Maria Vesna Nikolic
Summary: In this study, CoxMg1-xFe2O4 spinel ferrites with various compositions were synthesized using the sol-gel combustion method. Structural analysis was conducted using XRD, FTIR, and Raman spectroscopy, revealing insights into the magnetic, optical properties and photocatalytic activity. Results indicated that the ion content of Co2+ and Mg2+ played a significant role in determining the properties of the ferrites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Ch. Komali, N. Murali, K. Rajkumar, A. Ramakrishna, S. Yonatan Mulushoa, D. Parajuli, P. N. V. V. L. Pramila Rani, Satheesh Ampolu, K. Chandra Mouli, Y. Ramakrishna
Summary: This work used the solid-state reaction method to prepare Mg1-xZnxFe2-yCryO4 (x = y = 0.0, 0.2, 0.4, and 0.6) soft ferrites. Their structural, morphological, vibrational, dc electrical, and magnetic properties were analyzed using XRD, SEM, FTIR, two probe methods, and VSM. All the ferrites had a cubic spinel structure and uniform spherical nanoparticles. Increasing magnesium concentration decreased the DC electrical resistivity, thereby changing the magnetic parameters applicable in daily life.
Article
Materials Science, Multidisciplinary
F. A. Hezam, Nodar O. Khalifa, O. Nur, M. A. Mustafa
Summary: This study reported the structural and magnetic properties of Ni0.5Mg Zn0.5-xFe2O4 nanocrystalline ferrites synthesized via the co-precipitation method. The ferrites exhibited superparamagnetic behavior and were found to be sensitive to the Mg2+ and Zn2+ contents.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
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
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
Materials Science, Ceramics
A. Sandeep, G. Ganesh, S. Swathi, N. Rajesh, M. Sreelatha, Prasanna K. N. Kumari, B. Brahmanandam, S. Chandra Bose Rapaka, D. Ravinder, J. Shanker, Pavan Kumar Naini
Summary: The impact of small doping of Europium on the structural, magnetic and optical properties of Ni-Zn ferrites was investigated in this study. The results show that the doping of Eu3+ ions resulted in changes in the crystalline structure, surface morphology, anion distribution, crystal deformation, and band gap energy values of the samples. Magnetic properties testing revealed that Eu-doped Ni-Zn ferrites are suitable for use as core materials in transformers and power transmission.
CERAMICS INTERNATIONAL
(2022)