Materials Literature
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A bis-polyazamacrocycle, 10'-bis(acetamido)ethane-bis[1,4,7-tri(carboxymethane)-1,4,7,10-tetraazacyclododecane] (DO3A-AME-DO3A) was synthesized for application in magnetic resonance imaging. The efficacy of DO3A-AME-DO3A as non ionic magnetic contrast agent was tested by performing relaxometric studies on its gadolini…
Polyaniline Powdered sample was chemically synthesized using aniline and doped with HCl. Ultra thin film and Schottky junction with Al metal have been fabricated from this powdered sample Ultrathin film of polyaniline shows amorphous nature of the film. Two activation energies of these films at two different temperatu…
PdCo alloy is a promising catalyst for oxygen reduction reaction of direct methanol fuel cells because of its high activity and the tolerance to methanol. We have applied this catalyst in order to realize on‐chip fuel cell which is a membraneless design. The novel design made the fuel cells to be flexible and integrat…
The reaction of acetoxime, ethyl methyl ketoxime or cyclohexanone oxime with zirconium iso-propoxide gave dimeric alkoxo oximate derivatives [Zr(OiPr)(oximate)₃]₂. The oximate ligands are side-on coordinated and the alkoxo groups bridge the two metal centres. NMR spectroscopy revealed dynamic behaviour of the compound…
A novel approach for the preparation of a well-ordered nanosieve structure of silver nanoparticles using a Ag-1,2-benzenedicarboxylate (Ag-1,2-BDC) complex and sodium stearate under a hydrothermal process was performed. The X-ray diffraction (XRD) pattern suggests the formation and crystallinity of silver nanoparticle…
In the present work, electronic structures of pure Mg, Mg-Ca and Mg-Al alloys were investigated by first-principle calculations. The charge density between the solute and solvent atoms in the Mg-Ca alloy was lower than that in the Mg-Al alloy. The local charge density of states (LDOS) of Mg atom in the Mg-Ca alloy was…
Tailoring the density of random single-walled carbon nanotube (SWCNT) networks is of paramount importance for various applications, yet it remains a major challenge due to the insufficient catalyst activation in most growth processes. Here we report on a simple and effective method to maximise the number of active cat…
Treatment of [Et(4)N][Tp*W(μ(3)-S)(3)(CuBr)(3)] (Tp* = hydridotris(3,5-dimethylpyrazol-1-yl)borate) (1) with an excess of α-methylpyridine (α-MePy) and NH(4)PF(6) in CH(2)Cl(2) afforded a cationic cluster [Tp*W(μ(3)-S)(3)Cu(3)(α-MePy)(3)(μ(3)-Br)](PF(6)) (2) while the reaction of 1 with an excess of 1,4-pyrazine (1,4-…
A new class of defect free ZnO rods with racket type handle shape at both the ends has been synthesized via a simple catalyst free method. High resolution transmission electron microscopy and strong ultra-violet emission showed that they are highly crystalline defect free structures. A simple growth mechanism has been…
We present a simple and facile strategy for the formation and placement of two-dimensional nanoparticle arrays by spin-coating of polystyrene-modified gold nanoparticles onto lithographically patterned substrates.
The vibrational spectrum of an η(1),η(1)-1,2-peroxodiiron(III) complex was measured by nuclear resonance vibrational spectroscopy and fit using an empirical force field analysis. Isotopic (18)O(2) labelling studies revealed a feature involving motion of the {Fe(2)(O(2))}(4+) core that was not previously observed by re…
T/P 23 weld failures occurred in coal fired supercritical power plants were investigated and possible causes were considered. Susceptibility of stress relief cracking was tested through mechanical properties varying heat treatment conditions in weld and intrinsic stress level in the pipe system was calculated by FEM a…
The synthesis of ZnO nanostructures via the transformation strategy from zinc-based compounds has long been hampered by the difficulties in obtaining high quality nanostructures. Herein we report a simple and effective method toward nanocrystalline/nanoporous ZnO nanostructures with well-defined shapes transformed fro…
An isophthalate-bearing DOTA monoamide derivative has been synthesised and used to prepare a family of lanthanide complexes. Luminescence and NMR studies in solution show that the predominant form of the complexes in solution is a mono-capped square antiprism about the lanthanide centre, in which a solvent molecule oc…
The mixed metal complex [Zn(TFA)(3)(μ-OH)Cu(3)(dmae)(3)Br]·THF (1) and its isostructural analogues ([Zn(TFA)(3)(μ-OH)Cu(3)(dmae)(3)Cl]·THF (2) and [Zn(TFA)(3)(μ-OH)Cu(3)(dmae)(3)Cl/Br]·THF (3)) have been prepared by a simple metal ligand assembly method and were characterized by their melting points, elemental analysi…
Progress in Electromagnetics Research
Poly (m-aminobenzene sulfonic acid, m-ABSA) films were electrochemically prepared by cyclic voltammetry (CV) in 0.1 mol L–1 KCl solution. The dopamine (DA) selectivity of polymeric electrodes prepared at the different thicknesses was examined in the presence of ascorbic acid (AA). The results showed that the modified…
We report here the synthesis of mesoporous silica nanostructures simultaneously having helical morphology and c2mm symmetry correlated to a ribbon intermediate phase. A mixture of four types of helical nanostructures, including short-pitch (just a few lattice constants) sphere-like nanoparticles, short-pitch straight…
This Letter presents an intracavity scheme for diode laser based two-photon spectroscopy. To demonstrate generality, three (133)Cs hyperfine transition groups of different wavelengths are shown. For the 6S-6D transitions, we achieved a 10(2) times better signal-to-noise ratio than in previous work [J. Phys. Soc. Jpn.…
Tb-doped oxyfluoride tellurite glasses are synthesized by high-temperature melting method. Densities, transmission and luminescence properties at different concentrations of Tb3+ and Gd3+ ions are investigated. The results indicate that all the samples have good physical properties, especially those with high density.…