Materials Literature
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Dibenzyl Disulfide (DBDS) is one of several sulfur compounds known to cause copper corrosion in transformers under certain circumstances. Remedial processes such as adsorbents, absorbents, and oil change-out have been known to reduce the concentration of DBDS in the oil. However, if not destroyed or removed below seve…
Although block copolymer motifs have received considerable attention as supramolecular templates for inorganic nanoparticles, experimental observations of a nanostructured diblock copolymer containing inorganic nanoparticles-supported by theoretical trends predicted from a hybrid self-consistent field/density function…
The new homoditopic ligand H2LC2′ self-assembles with lanthanide ions (LnIII) to yield neutral bimetallic helicates of overall composition [Ln2(LC2′)3]; it is fitted with two hexakis(oxyethylene) chains to test their effects on the thermodynamic, photophysical and biochemical properties of these complexes, with partic…
Nano-conductive adhesives have been attracting more and more interest in microelectronic packaging field due to their unique electrical and mechanical properties compared to conventional conductive adhesives. There has been extensive research on nano-conductive adhesives which contain nano-fillers such as nano-particl…
X-ray diffraction (XRD) and Raman spectroscopy were used to investigate stress dependence on thickness in PbTiO3 (PTO) films grown by pulsed liquid injection metalorganic chemical vapor deposition on a LaAlO3 (001) substrate (LAO). Films on sapphire substrate (R plane) were used as the polycrystalline film reference.…
Single-crystalline KNbO(3) nanocubes with orthorhombic phase were prepared in a large scale by a simple one-step molten salt route without using any surfactant as template; the nanostructures exhibited high piezoelectric properties such as d(33)=105 pC/N and k(p)=0.34 as piezoelectric materials.
Abstract Compounds with moderate and large negative dielectric anisotropy (Δɛ) are very attractive liquid crystal (LC) for vertical alignment mode (VA). Materials with such properties can be achieved by lateral substitution of a polar group into a mesogenic molecule. We synthesized some new LC materials with a negativ…
A general strategy in terms of large-scale and shape-controlled synthesis was used to design highly ordered mesoporous carbon spheres with controlled size from 50 to 500 microm by an evaporation induced organic-organic self-assembly inside ethanol-in-oil emulsions.
Silicon nitride (Si3 N4) nanowires have been prepared by carbothermal reduction followed by the nitridation (CTRN) of silica gel containing ultrafine excess carbon obtained by the decomposition of dextrose over the temperature range of 1200–1350 °C. This innovative process involves repeated evacuation followed by purg…
Abstract Novel optical and electrical properties of newly synthesized nano‐wires of monoclinic WO 3 and nano‐belts of rutile VO 2 have been investigated by Raman spectroscopy and thermo‐chromism studies respectively. Phonon confinement is observed in the WO 3 nano‐wires and the previously modified Richter equation is…
Controlling the coordination environments and the luminescence properties of Eu(3+) complexes with outer-sphere counterions was achieved in the solid state, in a polymer matrix and in solution.
A phototransistor with a field-effect transistor configuration was fabricated using a single zinc octaethylporphyrin (ZnOEP) nanorod; the device showed ability in signal amplification and reversible light-controlled switching.
Due to the strong evolution in the field of nanotechnologies and the continuous miniaturisation of electronic components, multiply-charged ion nanobeams would be a promising tool in this field of research. Either for surface modification or local (nanometre scale) surface analysis purposes, studying the feasibility of…
Results are presented from molecular dynamics (MD) simulations of displacement cascades created in α-iron (Fe) by primary knock-on atoms (PKAs) with energy from 5 to 20 keV and mass chosen to represent C, Fe and Bi. The PKA-Fe interaction potential at short range has been varied, and damage by molecular Bi2 has been s…
Mesostructured silica can be prepared by surfactant templating either under conditions of low surfactant template concentration (so-called liquid crystal templating) or from a pre-formed mesophase at higher surfactant concentrations (true liquid crystal templating). In this study, the structural properties of such sil…
Molecular dynamics simulations of mixtures of carbohydrates and water are performed for a homologous series of maltooligomers from glucose to maltopentose at water contents ranging from 0 to 100 weight % and for temperatures between 270 and 370 K. The specific volume of maltooligomer–water mixtures follows volume addi…
The behaviour of two heteropolyacids (HPAs) with quite different stability in aqueous solutions was systematically investigated by UV, IR and NMR spectroscopy and potentiometric titration. It was shown that the Keggin structure of 12-tungstosilicic acid (H4SiW12O40, WSiA) anion was sustained over a wide range of pH fr…
Extensive use of pressurized steam in the oil and gas sectors has led to incidents where workers were seriously injured. In this study a test device and procedure to measure heat transfer through fabrics during steam exposure were developed and evaluated. Several factors were considered while designing the test device…
A kinetic mixture of self-assembled subphthalocyanine-based capsules was shown to gradually reorganize into its more stable symmetrical components by electrospray mass spectrometry.
An approach inspired by biomineralization leads to the selective formation of highly crystalline α-Co(OH)2 and its oriented thin films in the presence of organic molecules under mild conditions.