Materials Literature
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Abstract The reaction of 2,4,6‐tris(2‐pyridyl)‐1,3,5‐triazine (tptz) with Cu(BF 4 ) 2 ·3H 2 O and N , N ‐bis(3‐aminopropyl)methylamine (Medpt) yielded the monomeric complex [(tptz)Cu II (Medpt)](BF 4 ) 2 ·2MeOH ( 1 ) whereas reaction of tptz with CuCl 2 ·2H 2 O yielded the dinuclear complex [{Cu II Cl 2 }(tptz){Cu II…
The solubility of MgO in molten MgCl2 and CaCl2 has been studied. In pure MgCl2, the MgO solubility was determined to be 0.63—2.90 mol% at 1073—1373 K, while 0.24—0.63 mol% in pure CaCl2 at 1223—1523 K. The effects of MgCl2 and CaO addition to CaCl2 were investigated, and the solubility product of MgO was found to inc…
This study investigated the effect of extractives in wood flour on the mechanical properties of wood-polypropylene (PP) composites. Three different solvents, acetone/water, dioxane/water and benzene/ethanol, were used to remove extractives in both pine and Douglas fir wood flour. X-ray photoelectron spectroscopy (XPS)…
Decreased spectral overlap between a donor biotinylated poly(p-phenylene ethynylene) and a chromophore-labeled streptavidin acceptor leads to better observed fluorescence resonance energy transfer.
To theoretically examine the existence of half-metals in Co-Cr-Fe-Al alloys, band calculations were carried out for these alloys. Seeing energy dispersion curves E(k) of Co2CrAl with the Heusler structure, we find that the Fermi level intersects the E(k) curves in the majority-spin state but is located at the energy g…
Silica coatings have been prepared by the spin-coating technique with the 172 nm vacuum ultraviolet (VUV) irradiation using a Xe2∗ excimer lamp. Perhydropolysilazane was used as a precursor. The chemical states, composition and optical transmittance of VUV-irradiated films were investigated by Fourier transform infrar…
Five distinct analytical techniques were compared for the quantification of the H2O (0·1−7·4 wt%) and D2O (up to 5·5 wt% D2O) contents in rhyolitic glasses. The hydrogen concentration in obsidians was measured using nuclear reaction analysis (NRA) and converted into H2O concentration. The bulk water content (H2O+D2O)…
Particulate reinforced thermoplastic composites are designed to improve the properties and to lower the overall cost of engineering plastics. In this study the effects of adding mica with variable particle size on the mechanical, thermal, electrical and rheological properties of nylon-6 was investigated. Composites of…
Electrolytic copper deposited on single crystals forms pyramidal crystals that grow parallel to the substrate at low current density without stirring. With stirring and higher current density, slanting platelet crystals with orientation are formed. Chloride and gelatin are typical additives for electrolytic copper foi…
A versatile peripheral-pore-nanocasting method is employed to fabricate a series of novel microcapsules with mesoporous shell of noble metal or noble metal oxides, including Pt, PdO, RuO2 and IrO2. The shell thickness of these hollow microcapsules can be adjusted by controlling the depth of 3-amino-propyltriethoxysila…
Asset management strategies are amongst the most important tools to address the economical, reliability, and operational requirements of extensive distribution networks in the environment of increasing deregulation. The key objectives are full utilization (i.e., exploitation of available network reserves), investment…
A chemical vapor deposition (CVD) route to nanosized ZnS and CdS thin films was developed. The layers were deposited on substrates in a atmosphere at temperatures between 473 and 723 K using as single-source precursors. Thermal decomposition and fragmentation of compounds were investigated by thermal analyses and mass…
The purpose of this study was to investigate the correlation between corrosion resistance and surface composition of an experimental Ti-20 mass% Cr casting alloy in a saline solution containing fluoride. The alloy had a greater resistance to corrosion in a fluoride-containing saline solution than did commercially pure…
A breakthrough technology is one that breaks through the dam of conventional wisdom and slow progress, opening up prospects for transformative change. The radical novelty of a "breakthrough technology" is thus conveyed by the old, familiar, and rather conventional image of a "breakthrough". This holds true for nanotec…
Photochemical and enzymatic synthesis of formic acid was investigated from HCO3− with formate dehydrogenase (FDH) from Saccharomyces cerevisiae and reduced methylviologen (MV2+) produced by the visible light photosensitization of zinc tetrakis(4-methylpyridyl) porphyrin (ZnTMPyP) in the presence of triethanolamine (TE…
Micro/nanoporous ZnO ∶ Al films were fabricated through the pyrolytic transformation of AlCl3-added layered hydroxide zinc acetate (LHZA) self-templates. Formation of the self-templates on glass substrates was achieved on the basis of heterogeneous nucleation and crystal growth that proceeded in a chemical bath compos…
The fabrication and evaluation of solid-state supercapacitors based on a Nafion electrolyte in aqueous and nonaqueous systems are described. The Nafion membrane in a nonaqueous system is impregnated with 30% of phosphoric acid in ethylene glycol and characterized in a supercapacitor configuration by cyclic voltammetry…
The present theory and character for antibacterial materials of silver nanoparticles and its up-to-date application on medical appliances and appliances for daily use were also described.
A hemicarcerand encapsulates, stores and releases gases in the solid state.
The existing evidence for the nature of the phase diagram for the binary system sodium nitrate-potassium nitrate is reviewed and in particular whether the system is of the continuous solid solution type, as has often been stated in the last 80 years, or whether this system is of the eutectic type as was earlier believ…