A5044555094- Iron oxide chemistry and applications
- Crystal Structures and Properties
- Ferroelectric and Piezoelectric Materials
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Magnetic Properties and Synthesis of Ferrites
- Characterization and Applications of Magnetic Nanoparticles
- Microwave Dielectric Ceramics Synthesis
- Nanoparticle-Based Drug Delivery
- Multiferroics and related materials
- Advanced Condensed Matter Physics
- Inorganic Chemistry and Materials
- Iron-based superconductors research
- Dielectric properties of ceramics
- Acoustic Wave Resonator Technologies
- Inorganic Fluorides and Related Compounds
- Electromagnetic wave absorption materials
- Material Properties and Applications
- Rare-earth and actinide compounds
- Rheumatoid Arthritis Research and Therapies
- Coagulation and Flocculation Studies
- Ionic liquids properties and applications
- Mineral Processing and Grinding
- Long-Term Effects of COVID-19
- Advanced Battery Materials and Technologies
Freie Universität Berlin
2020-2024
Shahed University
2023
Ferdowsi University of Mashhad
2015-2019
Shiraz University of Technology
2012-2013
Two literature-known sulfido vanadates, Na3[VS4] and K3[VS4], were obtained through a straightforward scalable synthetic method. Highly crystalline powders of both compounds from the homogeneous molten phases starting materials via a─comparably rapid─solid-state technique. Low-temperature structure determination, ambient temperature powder diffraction, solid-state NMR spectroscopy verify previous structural reports indicate purity samples. Both show semiconductivity with optical band gap...
We introduce Na2[Fe3S4], comprising anionic layers, synthesized by a simple and straightforward solid-state method based on the fusion of binary sulfides abundant sodium iron. The structure crystallizes in trigonal lattice with honeycomb cavities, as well 25% statistical iron vacancies crystal structure. compound depicts high dielectric constants from 998 to 1850 at frequency 1 kHz depending sintering temperature, comparable benchmark materials. According complex electrochemical impedance...
Rheumatoid arthritis (RA) is a chronic autoimmune disorder characterized by inflammatory processes that result in joint swelling, inflammation, and the onset of pain. This discomfort pathological condition exhibit gradual rise scale become more intense. Even though pharmacotherapy like disease-modifying antirheumatic drugs (DMARDs) biologics has improved, there still need for focused treatments cause less harm. study examines how RA have changed over time, focusing on shift from traditional...
Abstract The multigram synthesis of K 2 [Fe 3 S 4 ] starting from and FeS is presented, its electronic magnetic properties are investigated. title compound obtains a defect variant the K[Fe Se structure type. Dielectric impedance measurements indicate dielectric constant 1120 at 1 kHz an outstanding ionic conductivity 24.37 mS cm –1 295 K, which in range highest reported value for potential solid‐state electrolytes potassium‐ion batteries. Seebeck coefficient n‐type conductor amounts to −60...
Decoration with Pd clusters increases the magnetic heating ability of cobalt ferrite (CFO) nanoparticles by a factor two. The origin this previous finding is unraveled element-specific X-ray absorption spectroscopy (XAS) and circular dichroism (XMCD) combined atomic multiplet simulations density functional theory (DFT) calculations. While comparison XAS spectra show that inversion degree not affected decoration and, thus, can be excluded as reason for improved performance, XMCD reveals two...
The ternary sulfido bismuthate K3[BiS3] is synthesized in quantitative yields. material exhibits nonlinear optical properties with strong second harmonic generation at arbitrary wavelengths the infrared spectral range and a notable laser-induced damage threshold of 5.22 GW cm-2 for pulsed laser radiation wavelength 1040 nm, pulse duration 180 fs, repetition rate 12.5 kHz. indicates semiconductivity direct band gap 2.51 eV. Dielectric impedance characterizations demonstrate κ values 6-13 1...
Loss mechanisms in fluid heating of cobalt ferrite (CFO) nanoparticles and CFO–Pd heterodimer colloidal suspensions are investigated as a function particle size, concentration magnetic field amplitude.
Abstract The novel potassium sulfido cobaltate, K 2 [Co 3 S 4 ] is introduced, with 25% vacancies of the cobalt positions within a layered anionic sublattice. impedance and dielectric investigations indicate remarkable ionic conductivity 21.4 mS cm −1 at room temperature, which in range highest ever reported values for potassium‐ions, as well high electrical permittivity 2650 1 kHz, respectively. Magnetometry results an antiferromagnetic structure giant intrinsic exchange bias fields 0.432...
The ternary potassium sulfido and selenido ferrates K9[Fe2S(e)7] were synthesized as pure phases through a facile straightforward solid‐state method. compounds crystalize isotypic has been reported previously. UV‐visible measurements indicate semiconductivity, showing direct optical band gaps with energies of 1.91 eV for the 1.72 ferrate. Investigations dielectric impedance properties provide their constants in range 60 to 74 at room temperature frequency 1 kHz, well ionic conductivity...
High yields of phase-pure K3[Fe2S4] are obtained using a fast, straight-forward, and efficient synthetic technique starting from the binary precursors K2S FeS, elemental sulphur. The compound indicates soft ferrimagnetic characteristics with magnetization 15.23 A m2 kg-1 at 300 K due to mixed valence FeII/FeIII. Sintering different temperatures allows manipulation microstructure as well ratio grains grain boundaries. This results in variation dielectric impedance properties. Samples sintered...
Anionic lithium-containing species were predicted to impact ionic liquid-based electrochemical applications but have hitherto never been isolated from liquid systems. Here, we report the first representatives of this class compounds, ino-chloridolithates, comprising [LiCl2]- and [Li2Cl3]- polyanions ionothermal reactions. Such compounds are obtained at moderate temperatures with imidazolium-based liquids LiCl. The addition an auxiliary ammonium salt enhances lattice energy yield lithate in...