Materials Literature
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Abstract Woodflour/polypropylene composites were prepared with 10 and 20% in weight of woodflour (WF). The influence of the WF, the compatibilizer, and processing aid (WP) in the crystalline structure of the polypropylene was studied by thermal analysis. The results showed that the WF acts as a nucleating agent, incre…
The interest in zirconia nanoparticles for either structural or functional applications depending on the stabilized phases has promoted the search for different synthesis methods. One of these methods is freeze drying. The present work deals with the preparation of zirconia nanoparticles by freeze drying using ZrOCl 2…
Abstract A semicrystalline ethylene‐hexene copolymer (PEH) was subjected to a simple thermal treatment procedure as follows: the sample was isothermally crystallized at a certain isothermal crystallization temperature from melt, and then was quenched in liquid nitrogen. Quintuple melting peaks could be observed in hea…
We have observed the spatial inhomogeneity of the electronic structure of a single-crystalline electron-doped EuO thin film with ferromagnetic ordering by employing infrared magneto-optical imaging with synchrotron radiation. The uniform paramagnetic electronic structure changes to a uniform ferromagnetic structure vi…
Mesoporous materials were prepared by hydrothermal treatment of a powder compact consisting of natural or calcined diatomaceous earth and slaked lime. Tobermorite formed after the hydrothermal process, leading to strength improvement. The structure tangled with each tobermorite particle, causing the formation of mesop…
The structural and bonding nature of Ge 1 Sb 4 Te 7 is investigated using an X-ray diffraction method and calculations based on density-functional theory (DFT). This material’s crystal is confirmed to have a 12-layered, close-packed cubic stacking structure ( P 3̅ m 1). In this crystal, Te atoms occupy their own speci…
The unique band structure of graphene makes the gate leakage current in a graphene field-effect transistor (FET) different from that in silicon FET. Theoretical investigation in this letter demonstrates that the Fowler-Nordheim tunneling current (TC) in a graphene FET is different from that in a silicon FET. Numerical…
Abstract Water‐soluble poly( p ‐phenylene diamine) was chemically synthesized. Its corrosion inhibition performance was evaluated for iron corrosion in 1 M HCl at various concentrations, and the results were compared with that of the monomer. The corrosion inhibition properties were evaluated by polarization technique…
We theoretically investigate the transmission of electromagnetic radiation through a metal plate with a zero-$ϵ$ metamaterial slit, where the permittivity tends towards zero over a given bandwidth. Our analytic results demonstrate that the transmission coefficient can be substantial for a broad range of slit geometrie…
We investigated the swelling behavior and density distributions of polyion segments and multivalent counterions in polyelectrolyte brushes within a primitive model that represents both polyion segments and salt ions as charged spheres and the solvent as a continuous dielectric medium. The numerical performance of a pr…
The effect of surfaces on the stability of smectic-${C}^{*}$ $(\mathrm{Sm}{C}^{*})$ variant phases is investigated. The results obtained using dielectric spectroscopy by varying the cell thickness show that the temperature ranges of $\mathrm{Sm}{C}_{\ensuremath{\alpha}}^{*}$, $\mathrm{Sm}{C}_{A}^{*}(1∕2)$, and $\mathr…
We investigated the influence of ZrO2on the microstructure and electromagnetic properties of MnZn ferrites by characterizing fracture surface micrographs, magnetic properties, and dc resistivity. Powders of Mn0.68Zn0.25Fe2.07O4composition were prepared by the conventional ceramic technique. Toroidal cores were sintere…
Synthesis of gold-palladium bimetallic nanoparticles using in situ radioactivity from (198)Au isotope is reported in this paper. Gold solution spiked with (198)Au(III) has been mixed with PdCl2 solution in measured proportions in 50% polyethylene glycol solution. Au(III) and Pd(II) are reduced, and nanoparticles are f…
We explore the extreme quantum limit of photogenerated electrons in quantum paraelectric SrTiO3. This regime is distinct from conventional semiconductors, due to the large electron effective mass and large dielectric constant. At low temperature, the magnetoresistance and Hall resistivity saturate at a high magnetic f…
Silver telluride nanowires incorporating silver were prepared by green chemical method in aqueous solution. First, Ag 2 TeO 3 was prepared from aqueous solutions of sodium tellurite (Na 2 TeO 3 ) and silver nitrate (AgNO 3 ). At room temperature in basic solution, α- d -glucose reduces Ag 2 TeO 3 to generate silver na…
A one-step, low-cost, and general nanocrystal self-assembly method that covers both the nanometer-scale superlattice and macroscale ordered patterns—that is, hierarchical architectures—is developed. This approach can generate various functional, compositional, and dimensional combinatorial architectures. It may give n…
Azobenzene-based photoswitchable compounds can be use to photocontrol a variety of biochemical systems. In some cases, their effectiveness may be limited by the size of the conformational change that the switch undergoes. To produce an azobenzene photoswitch that undergoes a large end-to-end distance change upon isome…
Three perylene tetracarboxylic diimide (PDI) trimers substituted with different side groups at the bay positions were prepared with the triazine ring as a linkage. The free rotation of C-N-C bonds between the triazine ring and the PDI unit provide these molecules with some flexibility. The UV-vis absorption and fluore…
A facile polymer-template-aided synthesis is adopted to prepare single crystalline La0.7Sr0.3MnO3 nanowires by chemical solution deposition. The La0.7Sr0.3MnO3 nanowires crystallize in a novel monoclinic phase and exhibit ferromagnetic ordering at room temperature.
Amorphous CdSe nanoparticles were prepared by a base-catalyzed room-temperature reaction between cadmium nitrate and selenourea, with dodecanethiol as a capping ligand. The nanoparticle size could be controlled from 1.9 to 3.6 nm by increasing the water concentration in the reaction. When the nanoparticles were heated…