Materials Literature
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Nickel ferrite, Ni_xCo_{1-x}Fe_2O_4, NPs (where x = 0.0, 0.6 and 1.0) were successfully synthesized by a rapid and reproducible CTAB-assisted hydrothermal route. The influence of different hydrolyzing agents on the particle size and magnetic behavior of Ni_xCo_{1-x}Fe_2O_4 NPs was investigated. Particles showed very h…
We report here the preparation of ZnO/polythiophene-based conjugated polymer nanocomposites that retain especially highly luminescent (Φf > 0.5) and semiconductive properties without the addition of capping agents. The as-prepared nanocomposites have been well characterized by UV-Vis, fluorescence, TEM/EDS, etc. This…
Poly(4,4′-diphenylenevinylene) rotaxanes and [2]rotaxanes with α-, β-, γ-cyclodextrin macrocycles were synthesised and their sensitivities to fluorescence quenching by methyl viologen in aqueous solution were determined, relative to uninsulated analogues. Stern–Volmer analysis revealed that the fluorescence quenching…
We report on the fabrication and characterization of layer-by-layer stacked MnO x – RuO 2 nanofiber mats via co-electrospinning and their potential application for electrochemical capacitors. The morphology of multistacked MnO x – RuO 2 fiber mats provides high porosity for the efficient permeability of electrolyte in…
The reactivity of organic radicals produced by 1,1'-azobis(cyanocyclohexane) (ACN) is tuned to selectively suppress electrical conduction of small diameter single-walled carbon nanotubes, and the modified tubes are able to produce high-mobility (approximately 10 cm2 V(-1) s(-1)) and solution-processable thin-film tran…
Some iturin A-producing strains of Bacillus subtilis will elaborate the novel fluorinated analogue when incubated with 3-fluoro-L-tyrosine. The activity of iturin A is dependent on the D-tyrosine residue and the presence of fluorotyrosine may result in an improvement of the biological properties of this lipopeptide. T…
A sputter-prepared Ru (7 nm)/ (8 nm) stacked layer was investigated as a diffusion barrier layer between Cu and Si for direct-plateable Cu interconnects, and its performance was compared with that of a Ru single layer with the same thickness (15 nm). X-ray diffractometry and sheet resistance measurements showed that t…
Co-sublimation of the two dithiadiazolyl radicals [PhCNSSN]2 (1)2 and [C6F5CNSSN]2 (2)2 yielded the mixed π*–π* dimer [PhCNSSN][C6F5CNSSN] (3) exhibiting aryl–perfluoroaryl π–π interactions.
The oxidation of pure copper in oxygen with and without water vapor was investigated as a function of temperature, oxygen pressure, and water vapor pressure using thermogravimetric analysis. The rate of the oxidation was increased with increasing temperature from 500 to 700°C and followed by the parabolic rate law reg…
An unprecedented antiferromagnetic exchange of -234 K in Cu(2,5-dimethylpyrazine)Br(2) is shown experimentally and theoretically to propagate via through-space interactions between Br ions rather than through-bond interactions.
We report the synthesis of CoPt hollow nanostructures using a simple reduction method in aqueous solution in the presence of poly(methacrylic acid) pentaerythritol tetrakis (3-mercaptopropionate) (PMAA-PTMP) polymer or a mixture of O-[2-(3-mercaptopropionyl-amino)ethyl]-O′-methylpolyethylene glycol (PEG-SH) polymer an…
In order to reduce the rolling force and the roll wear, the lubricants have been used in hot sheet rolling of steel, but the lubrication behavior at the interface between roll and workpiece in hot steel rolling have never been well understood. On the other hand, hot rolling process with high reduction in thickness hav…
Three new dibromothiophene monomers for solid-state polymerization have been synthesized and their solid-state structure was studied by X-ray crystallography. The substituents in the thiophene ring are introduced to induce an anti-orientation of the monomer to resemble the s-trans structure of the polythiophene. The d…
The self-cleaning properties of ultra-hydrophobic surfaces are of great interest for technological applications. Specific surface roughness, essential for the dewetting effect, is not necessarily based on deterministic lotus leaf structures. Ultra-hydrophobicity also occurs on a large variety of stochastic, e.g., self…
Chromium poisoning was investigated at the cathode/ electrolyte interfaces under cathodic polarization by using a preoxidized Cr metal. The concentration levels of Cr in the porous cathodes [ (LSM) and (LSF)] was first determined by secondary ion mass spectrometry. Maxima of Cr concentration were observed at the LSM/e…
Multilayer films (PW12–TH)n (PW12 = PW12O403−, TH = thionine) were prepared on quartz slides and MnCO3 microspheres by an electrostatic layer-by-layer (LbL) self-assembly method. The composite films on quartz slides were characterized by UV-vis spectra and atomic force microscopy (AFM) images. MnCO3 microspheres coate…
Hierarchical porous metal oxide/polymer hybrid and polymer materials were fabricated by replication of natural cellulosic substances and successive removal of the template cellulose components using a solution dissolving method under mild conditions. Commercial filter paper was employed as the template, metal oxide/po…
A fast and versatile microwave- (MW)-assisted method for the post-calcination functionalization of MCM-41 is proposed. The efficiency of the grafting is improved in the absence of solvent and depends on the MW-heating time. Moreover, working under the same reaction conditions, the organic loadings strictly depend on t…
We demonstrate magnetic capsules with high uptake capacity by combining single-hole hydroxyl-functionalized PEDOT hollow spheres and Fe(3)O(4) nanoparticles; potential applications include pollutant removal and controlled drug delivery.
Pure and Pb 2+ doped SrB 2 O 4 materials were prepared by a solution combustion synthesis method. The synthesized materials were characterized by using the powder XRD and FTIR. The photoluminescence properties of Pb 2+ doped SrB 2 O 4 materials were investigated using spectrofluorometer at room temperature. The emissi…