Materials Literature
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Theoretical research and specific surface area analysis of nitrogen adsorption indicated that a lot of structural micropores exist in sepiolite minerals fibers. However, the microporous size, existing form, and the distribution relationship between microporous structures were not proved yet. In this paper, the section…
Nanopowders of pure and doped oxides with high specific surface area were produced by a method of pulsed electron beam evaporation in vacuum. Characteristics nanopowders were studied by methods of XRD, high resolution transmission electron microscopy, electronography, DSC-ТG, inductively coupled plasma and pulsed cath…
The reaction of [Cu(valen)] with Tb(NO(3))(3) and (Bu(3)NH)(3)[W(CN)(8)] affords two types of crystals: [{W(CN)(8)}Cu(valen)Tb(OH(2))(5)]·2H(2)O (1, a discrete trinuclear complex) and [{W(CN)(8)}Cu(valen)Tb(OH(2))(4)]·CH(3)CN·H(2)O (2, an infinite zig-zag chain), both compounds showing slow relaxation of the magnetiza…
In this study, sol-gel method was used to synthesize nano sized of magnesium oxide (MgO). Magnesium acetate tetrahydrate and tartaric acid have been dissolved in ethanol and formed a precursor before calcined at 600 ¡C for 6 h to produce MgO nanoparticles. A cationic surfactant (cetyltrimethylammonium bromide, CTAB) h…
Double-shelled Ag/C/Ni nanocables have been synthesized through a deposition covering process of Ni nanoparticles (NPs) onto Ag/C pentagonal prism nanowires (NWs). The proposed synthesis mechanism is corroborated by scanning electron microscopy, transition electron microscopy, X-ray diffraction, X-ray photoelectron sp…
We have demonstrated the successful fabrication of multiple-layer colloidal quantum dot (CQD)-sensitized near-infrared (NIR) photovoltaic (PV) cells using the solution processable HgTe CQDs and poly-3-(hexylthiophene) (P3HT) as hole-conducting polymer. The cells showed a 3.6 fold enhancement in power conversion effici…
The internal reversible hydrogen embrittlement (IRHE) of austenitic Fe(10–20)Ni17Cr2Mo alloys based on type 316 stainless steels hydrogen-charged to around 40 mass ppm was investigated by performing tensile tests using the slow strain rate technique at temperatures from 80 to 300 K. The susceptibility to IRHE depended…
We describe a series of novel compounds designed to combat the bacterial growth that leads to microbially induced corrosion on steel in the marine environment. A synergistic effect of the ionic components in these dual active organic salts is demonstrated.
The ionic and electronic conductivities of samaria doped ceria electrolytes, Ce 0.85 Sm 0.15 O 1.925−δ , with nanometric grain size have been evaluated. Nanostructured bulk specimens were obtained using a combination of high specific-surface-area starting materials and suitable sintering profiles under conventional, p…
A series of Ce 3+ /Mn 2+ -coactivated MgY 4 Si 3 O 13 phosphors with oxyapatite nature have been prepared via high temperature solid state reaction process and their structural and luminescence property was thoroughly investigated. On examining the Mn 2+ concentration-dependent photoluminescence properties, we found t…
In this work, blended nanofibrous membranes were prepared by an electrospinning technique with poly- vinylpyrrolidone (PVP) K90 as the filament-forming poly- mer, and emodin, an extract of polygonum cuspidate known as a medicinal plant, as the treatment drug. Detailed anal- ysis of the blended nanofibrous membrane by…
Hexagonal LuFeO3 films have been studied using x-ray absorption and optical spectroscopy. The crystal splitting of Fe3+ is extracted as Ee′−Ee″ = 0.7 eV and Ea1′−Ee′ = 0.9 eV, and a 2.0 eV optical bandgap is determined assuming a direct gap. First-principles calculations confirm the experiments that the relative energ…
Purpose: The goal of the work is analysis of the knowledge extent on the bactericidal activity of copper
The structure and chemical composition of Pd nanoparticles exposed to pure CO and mixtures of CO and O(2) at elevated temperatures have been studied in situ by a combination of X-ray Diffraction and X-ray Photoelectron Spectroscopy in pressures ranging from ultra high vacuum to 10 mbar and from room temperature to a f…
A novel solution plasma process was developed to assemble honeycomb-like Co–B amorphous alloy catalysts with 253.33 m <sup>2</sup> g <sup>−1</sup> specific surface area using triethanolamine (TEA) as a soft template.
Here we report the first example of the use of supramolecular hydrogels to discover the protein targets of aggregates of small molecules.
Three rare earth-nitronyl nitroxide radical complexes [Ln(tfa)(3)(NIT-BzImH)] (Ln(III) = Gd 1, Tb 2, Dy 3; tfa = trifluoroacetylacetonate; NIT-BzImH = 2-(2'-benzimidazolyl)-4,4,5,5-tetramethylimidazolyl-1-oxyl-3-oxide) have been successfully prepared and structurally characterized. X-Ray crystallographic analysis reve…
Nano-hybrid materials of single-walled carbon nanotubes (SWNTs) and polyoxometalates (POMs) with three counter cations were prepared and used as cathode-active materials of molecular cluster batteries (MCBs). The charging/discharging performances and thus battery capacity of the MCBs with hybrid materials were signifi…
Visible light-harvesting cyclometalated Ir(III) complexes with 3-(2-benzothiazoly)-7-diethylaminocoumarin as the C^N cyclometalation ligands were prepared. The ancillary N^N ligand is either 6-piperidine naphthalimide-phenanthroline (Ir-1) or 9-aminophenanthroline (Ir-3). Ir(ppy)(2)(Phen) was prepared as model complex…
Graphene was covalently functionalized with phenol groups by a 1,3-dipolar cycloaddition reaction without degrading its electronic properties. Here, these phenols on the functionalized graphene have been further derivatized with 2-bromoisobutyryl bromide resulting in the attachment of atom transfer radical polymerizat…