Materials Literature
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The correct prediction of the ground-state geometries of lanthanide complexes is an important step in the development of efficient light conversion molecular devices (LCMD). Considering this, we evaluate here the capability of semiempirical approaches and ab initio effective core potential (ECP) methodology in reprodu…
In this article, the authors review the progress toward carbon nanotube based electronics and consider the implications for application of nanotubes in analogue RF devices and RF system applications as well as recent prospects in printed electronics, especially printed RFID tags. The author also points out that nanowi…
One-dimensional confinement effects are modelled within the hybrid HF-DFT LCAO approach considering neutral and single-charged oxygen vacancies in SrTiO(3) ultrathin films. The calculations reveal that confinement effects are surprisingly short-range in this partly covalent perovskite; already for film thickness of 2-…
The paper describes the preparation and characterization of conductive polyaniline-modified polymers by growing of aniline onto functionalized poly(styrene-co-p-methylstyrene) [P(St-co-MSt)]. For this purpose. P(St-co-MSt) was synthesized via nitroxide mediated radical polymerization (NMRP) and then N-boromosuccinimid…
Analysis and modeling of X-ray and neutron Bragg and total diffraction data show that the compounds referred to in the literature as "Pd(CN)(2)" and "Pt(CN)(2)" are nanocrystalline materials containing small sheets of vertex-sharing square-planar M(CN)(4) units, layered in a disordered manner with an intersheet separa…
We perform a detailed study of the phenomenon of resonant absorption that occurs at an oblique incidence in the vicinity of the zero refractive index transition in graded index metamaterials with the refractive index changing from positive to negative values. We compare the results of numerical simulations with analyt…
A crystal-chemical approach to superconductivity is described that is intended to complement the corresponding physical approach. The former approach takes into account the distinction between the stoichiometric valence ( stoich V ) and the structural valence ( struct V ) which is represented by the bond-valence sums…
The presence of mixed valency in unconventional superconductors is a necessary consequence of the fact that there is chemical equilibrium between the atoms of a transition element having different oxidation states. Consequently, phases described by stoichiometric formulas such as FeSe, Ba(FeAs) 2 , La 2 CuO 4 etc. dev…
A new bisupporting metal-oxygen cluster with bicapped pseudo-Keggin compound [CuII{Cl0.5Cl(phen)}]2 {[PMoV 6MoVI 6O40(VIVO)2][CuII(phen)2]2}·2H2O (phen = 1,10-phenathroline) has been synthesized by hydrothermal method and characterized by elemental analysis, IR spectroscopy, TGA, XRPD, and single-crystal X-ray diffrac…
The corrosion behaviors of low alloy steel P265GH and carbon steel Q235 deposited with NaCl and NaHSO_3 under dry/humid alternative condition were investigated by FTIR,XRD,SEM and galvanostatic method.The results reveal that under present experimental condition,corrosion rates of low alloy steel and carbon steel decre…
The linen is a leading comfortable fabric, but how can we evaluate this comfort? The comfort is a multicriteria phenomenon that requires the simultaneous satisfaction of several criteria. In this study, we try to represent objectively the mechanical comfort components to simulate the consumer comfort perception. This…
The synthesis and characterization of two bifunctional composite materials based on synthetic saponite clays is here presented. These materials were prepared by intercalation of a Ti-containing aminopropylisobutyl polyhedral oligomeric silsesquioxane (Ti-NH(2) POSS) in synthetic saponite samples containing interlayer…
Abstract Nanocomposites of ethylene‐vinyl acetate copolymer (EVAL) with Dellite organoclay were prepared in a laboratory extruder. The extent of intercalation of the nanocomposites was studied by field emission scanning electron microscopy and X‐ray diffraction. It was established that the organoclay is well dispersed…
The problem of evaluating the field amplification factor in electron field emitters on the basis of carbon nanotubes (CNT) has been considered. The electrostatic problem of determination of the field amplification factor for CNTs having various structures of the tip, depending on the tilting angle in regard to the cat…
Results on dielectric properties of layered indium rich CuIn 1+ δ P 2 S 6 crystals are presented. At low frequencies and high temperatures, the dielectric spectra are strongly influenced by the high ionic conductivity with the activation energy corresponding to 6815 K (0.587 eV). The high-frequency part of the dielect…
The structural reaction of La-doped PbZr 1– x Ti x O 3 (PLZT) with x = 0.44, 0.46 and 0.475 to an electric field was investigated by in situ neutron diffraction. The induced structural changes and the anisotropic displacement parameters were analysed. While the composition with a high Ti content shows a trend to tetra…
The competitive adsorption model under unsteady state conditions (CAMUS) is presented and validated against experimental results of crystal growth inhibition in the presence of impurities. Particular emphasis is given to peculiar growth rate trends documented in the literature that are unexpected by the existing theor…
The structure-dependent magnetic properties of cobalt-iron Prussian blue analogues (PBAs) with different morphologies synthesized in microemulsion were systematically explored by the characterization of XRD, IR, SQUID techniques, etc. And it was observed that both the w (water-to-surfactant molar ratio) and reactant c…
The achievement of high gas permeability is a key factor in the development of porous SiC ceramics for applications of hot gas filter, vacuum chuck, and air spindle. However, few reports on the gas permeability of porous SiC ceramics can be found in the literature. In this paper, porous SiC ceramics were fabricated at…
We report a hybrid drug delivery system inspired by the functional compartmentalization of cell, isolating properties of cargo encapsulation, targeting, stability, biocompatibility, and permeability into discrete multilamellar organic-inorganic–organic design consisting of two differently functionalized lipid bilayers…