A5103170686- Magnetic Properties and Synthesis of Ferrites
- Multiferroics and related materials
- Electromagnetic wave absorption materials
- Iron oxide chemistry and applications
- Magneto-Optical Properties and Applications
- Synthesis and Biological Evaluation
- Magnetic Properties and Applications
- Synthesis and Characterization of Pyrroles
- Synthesis and biological activity
- Phenothiazines and Benzothiazines Synthesis and Activities
- Magnetic Properties of Alloys
- Surface Chemistry and Catalysis
- Hydrogels: synthesis, properties, applications
- Porphyrin and Phthalocyanine Chemistry
- Pigment Synthesis and Properties
- Nanoparticle-Based Drug Delivery
- Advancements in Battery Materials
- Synthesis and Reactions of Organic Compounds
- Click Chemistry and Applications
- Magnetic properties of thin films
- 3D Printing in Biomedical Research
Shivaji University
2013-2023
Osmania University
2023
Dr. Babasaheb Ambedkar Marathwada University
2023
In the present work, a detailed investigation has been carried out on nanocrystalline particles of ZnCr0.5DyxFe1.5-xO4 with x = 0.0, 0.025, 0.05, 0.075 and 0.1 to estimate intrinsic strain through Williamson-Hall (W-H) analysis. The results were compared those obtained from Scherrer equation Rietveld refinement. Bertaut method was used cation distribution spinel ferrite. structural, morphological magnetic properties studied by X-ray diffraction (XRD), scanning electron microscopy,...
Al substituted M type Ca hexaferrite with composition CaAlxFe12-xO19 (x = 0, 0.2, 0.4, 0.6, 0.8) were synthesized by sol gel auto combustion method. The prepared samples characterized XRD, SEM, FTIR and VSM. X ray diffraction study shows that the increasing aluminum ion concentration lattice parameter a decreases from 5.87 Å to 5.83 while c 22.15 22.00 are well within range of hexaferrite. crystallite size particles 74.36nm 62.12nm suitable for magnetic recording. Morphology SEM images was...
ABSTRACT A pH and reduction dual‐stimuli‐responsive PEGDA/PAMAM injectable network hydrogel containing “acetals” as pH‐sensitive groups “disulfides” reducible linkages was designed synthesized via aza‐Michael addition reaction between PAMAM PEGDA diacrylates. The pore size swelling ratio of hydrogels varied from 14 ± 3 to 19 4 μm 214 13 300 μm, respectively, with varying ethylene glycol repeating units in increased increase the molecular weight PEG decrease pH. presence different...
Ferrite nanoparticles of Ni[Formula: see text]Mn[Formula: text]Zn[Formula: text]Fe[Formula: text]Ce x O 4 ferrite system were produced using sol–gel auto combustion technique. X-ray diffraction analysis confirms the single phase cubic spinel structure samples with space group Fd-3m. Replacement Fe[Formula: text] ions by Ce[Formula: increases lattice parameter 8.4105 Å to 8.4193. Average crystallite size obtained from Scherrer method varies 21.73[Formula: text]nm 22.71[Formula: replacement...
Fe-rich cobalt ferrite nanoparticles with a chemical formula Co0.9Sm0.05Fe2.05O4 were synthesized through route viz. sol–gel method. These obtained from precursor solutions of varying pH concentration ranging 3 − 9. Structural properties these materials analysed by techniques such as X-ray diffraction (XRD) patterns and vibrating sample magnetometer. XRD data reveals the spinel structure for irrespective different pH. Crystallite size 20 to 32 nm confirmed nanostructure formation...
A series of pyrrole–2–carboxamide derivatives ( 4a–j ) were synthesized and evaluated for theirantibacterial activity. Among the tested compounds, most effective 4a, 4b, 4c, 4d, 4e, 4g 4h with MIC value in range 1.05–12.01 μg/mL against Gram–positive Gramnegativebacterial strains. Further, compounds have been screened their invitro antifungal In present study, design expeditious synthesis novel 1–(4–chlorobenzyl)–N–(4–methoxybenzyl)–1H–pyrrole–2–carboxamide hybrid molecules as promising...
Abstract Yttrium (Y 3+ ) substituted Co-Zn spinel ferrite nanoparticles with compositional formula Co 0.9 Zn 0.2 Y x Fe 1.9-x O 4 (x = 0.0, 0.015, 0.030, 0.045, 0.06) were synthesized by using sol-gel auto-ignition route. The structural and mechanical properties of ferrites tailored the replacement ions ions. Rietveld refined X-ray diffraction patterns all samples confirm cubic structure. Lattice parameter increases substitution which may be due to difference in ionic radii. crystallite size...
Ni and La substituted M-type Ca hexaferrite of composition CaNi1Fe11O19 CaLa1Fe11O19 were synthesized by sol-gel auto combustion method using metal nitrates as oxidants citric acid reducing agent. The prepared samples characterized X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), energy dispersive analysis (EDAX), vibrating sample magnetometry (VSM). XRD study revealed that both had lattice parameters a c within the range...
In present work, nanocrystalline Ni0.4Cu0.3Zn0.3Fe2O4 (NiCuZn) ferrites with varying weight percent of Ta2O5 were prepared by sol gel method. X‐ray Diffraction, field emission scanning electron microscopy, Fourier transform infrared spectroscopy, Energy disperse x‐ray UV–visible diffusion reflectance spectroscopy and vibrating sample magnetometer are used to characterize the samples. The Rietveld refinement XRD pattern shows formation single-phase cubic spinel structure. secondary phase is...
Ni substituted M type calcium hexaferrite with composition CaNixFe12-xO19 (x = 0.5, 1.0, 1.5, 2.0) were synthesized by sol - gel auto combustion method. X-ray diffraction analysis confirms the phase of prepared samples and reveals that all belong to hexaferrite. The crystallite size was determined Debye Scherrer formula W-H Plot Lattice parameters ('a' 'c') lattice volume increases increase in Ni2+ ion concentration. Morphology observed scanning electron microscopes showing hexagonal...
The influence of Nb2O5 additive on elastic and dielectric properties NiZnCu ferrite is reported. longitudinal shear wave velocities were measured by ultrasonic pulse transmission method. constants increased as the contents increased. parameters such constant (ɛ′) loss tangents a function frequency composition for all samples at room temperature. variations in values explained using Maxwell–Wagner interfacial polarization according to Koops phenomenological theory. AC conductivity was with an...
In the present work, a detailed investigation has been carried out on nanocrystalline particles of ZnCr0.5DyxFe1.5-xO4 with x = 0.0, 0.025, 0.05, 0.075 and 0.1 to estimate intrinsic strain through Williamson-Hall (W-H) analysis. The results were compared those obtained from Scherrer equation Rietveld refinement. Bertuat method was used cation distribution spinel ferrite. structural, morphological magnetic properties studied by X-ray diffraction (XRD), scanning electron microscopy,...
Click to increase image sizeClick decrease size AcknowledgmentsFor providing laboratory facilities, the authors are grateful Department of Chemistry, Dayanand Science College, Latur, Maharashtra Mahavidyalaya, Nilanga, India; Shri Chhatrapati Shivaji Omerga, and BSS, Arts, Commerce Makni, India. We thank Indian Institute Chemical Technology, Hyderabad, India, for spectral data.