Materials Literature
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The volume fraction of ferrite and austenite phase and corrosion resistance of 26.2Cr-6.99Ni-2.37Mo-2.88W-0.35N duplex stainless steel have been studied by the use of optical microscopy, Feritscope, EBSD, SEM and Anodic polarization test after solution treatment at every 20°C at 1050°C∼1200°C for 30 min. As the temper…
The surfaces of boron nanoparticles 10-150 nm in diameter, prepared by gas phase pyrolysis of decaborane vapour at 1 atm and 700-900 degrees C, can be halogenated by treatment with Br2 or XeF2; the surface halogenation somewhat increases the onset temperature for the oxidation of the particles under O2.
Cu(2+)-doped Pb[Zr(0.54)Ti(0.46)]O(3) (PZT) and Cu(2+)-doped [K(0.5)Na(0.5)]NbO(3) (KNN) ferroelectrics with a dopant concentration of 0.25 mol% were investigated by means of multi-frequency and multi-pulse electron paramagnetic resonance (EPR) spectroscopy. Through the use of high magnetic fields and pulsed microwave…
Aqueous dispersions of poly(ethylene glycol) (PEG) capped poly[2-(2',5'-bis(2''-ethylhexyloxy)phenyl)-1,4-phenylene vinylene] (BEHP-PPV) nanospheres with an average particle diameter of 13 nm have been synthesised by a miniemulsion route and used in simple intracellular imaging experiments.
Elastic phonon scattering at an atomically rough interface that separates two fcc lattice leads is computed via a Green’s function method. Results are compared to specular and diffuse phonon scattering models, both of which are widely used in the numerical simulations of phonon Boltzmann transport equations. The shape…
Novel ruthenium-based supported ionic liquid phase (SILP) catalysts for the water-gas shift (WGS) reaction are reported which, compared to classical low temperature shift systems, operate at much lower temperatures and even at ambient pressure.
We report a novel technique for fabrication of magnetically anisotropic microparticles based on “arresting” of the alignment of oleic acid coated magnetite nanoparticles (OCMNs) dispersed within the oil drops of a polymerisable oil-in-water emulsion. This was achieved by polymerising the oil drops after gelling the co…
Oxygen Permeation Properties of Co-Free Perovskite-Type Oxide Membranes Based on BaFe1 − y Zr y O3 − δ , Watanabe, Ken, Takauchi, Daisuke, Yuasa, Masayoshi, Kida, Tetsuya, Shimanoe, Kengo, Teraoka, Yasutake, Yamazoe, Noboru
Treatment of N-aryl-2-methylquinolin-8-amines (L1-L3) with one equivalent AlMe3 or AlEt3 afforded dialkyl aluminum compounds (C1-C5), whereas the stoichiometric reaction of 2-((2-(1H-benzo[d]imidazol-2-yl)quinolin-8-ylimino)methyl)phenols (L4-L6) with either AlMe3 or AlEt3 produced monoalkyl aluminum compounds (C6-C10…
ZnO nanovariants possessing different morphologies have been synthesized via a sonochemical as well as a sonochemical assisted hydrothermal (SAH) method. The synthesis process variables such as concentration of the precursors, ultrasonic irradiation period and duty cycle are observed to influence the resultant morphol…
Density functional theory (DFT) calculations of the (51)V hyperfine coupling constants for 22 representative V(IV)O complexes with different donor set, electric charge and geometry were performed with Gaussian 03 software. The prediction of A tensor was carried out with five functionals (B3LYP, B3P86, B3PW91, BHandHLY…
The reactions of 3-glycidoxypropyltrimethoxysilane in a highly basic aqueous solution have been studied by multinuclear magnetic resonance and light scattering techniques. The study has shown that in this peculiar chemical environment the alkoxy groups of 3-glycidoxypropyltrimethoxysilane undergo a fast hydrolysis and…
Organogels are semi-solid systems in which an organic liquid phase is immobilized by a 3-dimensional network composed of self-assembled gelator molecules. Although there is a large variety of organogel systems, relatively few have been investigated in the field of drug delivery, owing mostly to the lack of information…
A photochromic Eu(III) complex was synthesized and its emission intensity change could be readout using wavelength-divided luminescence modulation.
We report self-assembly of charge-stabilized gold and silver nanoparticles at water-air and water-oil interfaces, via manipulation of the interactions between the interfaces and the adsorbing nanoparticles. Nanoparticle adsorption from bulk colloids to an interface is an energy-favored, but finite sorption barrier-res…
Transformations of the specific surface area and porous structure of carbon materials based on graphite were studied by low-temperature adsorption of nitrogen. Exfoliated graphite and graphite foil were found to have a developed (compared with the initial graphite) surface (up to 90 m 2 /g) and a porous structure form…
Electrochemically Induced Phase Transformation and Charge-Storage Mechanism of Amorphous CoS x Nanoparticles Prepared by Interface-Hydrothermal Method, Yuan, Changzhou, Gao, Bo, Su, Linhao, Chen, Li, Zhang, Xiaogang
Here we report that sulfonated crystal-like benzene-silica is much more robust and active than conventionally used periodic mesoporous silica for catalyzing aqueous organic reactions.
Electrospun nanofibres are widely investigated as extra-cellular matrix for tissue engineering and biomedical applications. Little is understood on the deformation mechanics of spun fibre mats. A model is developed to predict the deformation behaviour of randomly-oriented electrospun nanofibre network/mats with the fi…
The influence of pH on the kinetics of ozone decomposition in water was studied. Over the pH range 1–8, the kinetics was well described by a second-order reaction equation. Starting with approximately pH 3, the pH dependence of the logarithm of the constant at 19°C corresponded to the equation log k = −2.66 + (0.49 ±…