Materials Literature
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A biodegradable solid polymer blend films of PVA (50) /PVP (50) filled with La (NO 3 ) 3 were prepared by solution casting technique. The samples were subjected to Structural, Optical, Mechanical and Electrical investigations. The degree of amorphosity of the polymer blend composites was increased by the incorporation…
Purpose – The purpose of this paper is to investigate the effects of carbon nanotubes (CNTs) on the mechanical, thermal and colour properties of solvent-containing two-component polyurethane (PU) coating. Design/methodology/approach – Fourier transform infrared spectroscopy and observation of dispersion stability were…
ABSTRACT We substituted the small molecular model compound α-pinene of butyl rubber (IIR) to simulate the reaction between sodium hydride (NaH) and the isoprene structural unit of IIR. Meanwhile, we provided reference data on the reaction mechanism and reaction degree for the modified reaction of IIR with an active ca…
Biocompatible ZnS microspheres with an average diameter of 3.85 µm were grown by solvo-hydrothermal (S-H) method using water-acetonitrile-ethylenediamine (EDA) solution combination. ZnS microspheres were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron…
In this research, monocrystalline gallium oxide (Ga₂O₃) nanobelts were synthesized through oxidation of metal gallium at high temperature. An electronic device, based on an individual Ga₂O₃ nanobelt on Pt interdigital electrodes (IDEs), was fabricated to investigate the electrical characteristics of the Ga2O3 nanobelt…
Abstract A symmetrical bis‐nickelporphyrin was prepared in very good yield by oxidative coupling of a nickel(II) enaminoporphyrin. This dimer was obtained by the intermolecular reaction of the starting enamine (acting as nucleophile) with the porphyrin radical cation (acting as electrophile) generated in situ. Alterna…
Bottom-up assembly by dielectrophoresis (DEP) has emerged in recent years as a viable alternative to conventional top–down fabrication of electronic devices from nanomaterials, particularly carbon nanotubes and graphene. Here, we demonstrate how this technique can be extended to fabricate devices containing carbon nan…
The sol–gel processing, microstructures, dielectric properties and energy‐storage properties of barium strontium titanate glass‐ceramics over the sintering temperature range of 1000–1150 °C were studied. Through the X‐ray diffraction result, it is revealed that the crystallinity increases as the sintering temperature…
The use of molecular dynamics simulations to calculate the thermal diffuse scattering from X-ray diffraction experiments on molecular crystals is described, using the crystal structure of aspirin form I as an example system. Parameter settings that do not affect the actual simulation are varied in order to examine the…
The performances of NaY-SiO 2, Pt/NaY-SiO 2, and V 2 O 5 /NaY-SiO 2 in removing ethanol from water containing air stream were investigated using a fixed-bed adsorber. The adsorption capacity of Pt/NaY-SiO 2 is much greater than those of NaY-SiO 2 and V 2 O 5 /NaY-SiO 2, even though the adsorption rate was lower. To el…
Because of the low thermal conductivity and high electrical conductivity, type-III Ba24Ge100 clathrates are potentially of interest as power generation thermoelectric materials for midto-high temperature operations. Unfortunately, their too high intrinsic carrier concentration results in a quite low Seebeck coefficien…
Electrospun thermoplastic polyurethane (TPU) nanofibers are known to contract considerably (∼40%) on heating up to ∼90 °C. This study investigates this thermomechanical behavior and the TPU shape memory capabilities. The shape memory effect was first studied in TPU films as a model system by applying classical thermom…
The ceramic Pb0.99Nb0.02[(Zr0.57Sn0.43)0.92Ti0.08]0.98O3 can exist in either an antiferroelectric or a ferroelectric phase at room temperature, depending on the thermal and electrical history. The antiferroelectric phase can be partially recovered from the induced ferroelectric phase when the applied field reverses po…
Bifunctional magnetic and fluorescent core/shell/shell Mn:ZnS/ZnS/Fe3O4 nanocrystals were synthesized in a basic aqueous solution using 3-mercaptopropionic acid (MPA) as a capping ligand. The structural and optical properties of the heterostructures were characterized by X-ray diffraction (XRD), dynamic light scatteri…
We developed a method to control the structure of CdTe nanowires by adopting Bi-mixed CdTe powder source to a catalyst-assisted chemical vapor deposition, which allowed us to fabricate CdTe/CdS hierarchical nanostructures. We demonstrated that diverse nanostructures can be grown depending on the combination of the Bi…
CO2 laser radiation was used to process poly(3-hydroxybutyrate) constructs - films and 3D pressed plates. Laser processing increased the biocompatibility of unperforated films treated with moderate uniform radiation, as estimated by the number and degree of adhesion of NIH 3T3 mouse fibroblast cells. The biocompatibil…
The in-plane anisotropy of resistivity has been investigated for Ba(Fe$_{1-x}$TM$_{x}$)$_2$As$_2$ (TM-Ba122, TM$=$Cr, Mn, and Co) where the substitution sites are the same but the doped carriers are different for different TM elements. The Hall coefficient measurements indicated that hole carriers are effectively dope…
Trivalent europium doped yttriate nanophosphors were synthesized by rapid facile gel combustion technique. The photoluminescence (PL) properties of these Eu 3+ activated MY 2 O 4 (M = Mg, Ca, and Sr) nanophosphors showed red luminescence and exhibited excellent emission properties in their respective regions of color…
Transfer-free graphene synthesis was performed on sapphire substrates by using the catalyst metal agglomeration technique, and the graphene film quality was compared to that synthesized on sputtered SiO2/Si substrates. Raman scattering measurements indicated that the graphene film on sapphire has better structural qua…
The interaction mechanism of threonine (Thr) on the sidewall of (8, 8) single-walled carbon nanotubes (CNTs) was investigated by density functional tight-binding method. All the functional groups of Thr were used to interact with the surface of CNT. The structural parameters were analyzed to identify the noncovalent i…