Materials Literature
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The influence of the presence of barium carbonate (BaCO 3 ) phase on the luminescence properties of barium titanate nanocrystals (BaTiO 3 ) powders was investigated. Structural and optical characterizations of erbium (Er 3+ ) doped BaTiO 3 synthesized by the sol‐emulsion‐gel were performed. Using Fourier transform inf…
Abstract The well-known concept of electrical charging for the stabilization of colloidal solutions is extended to a general concept for explanation of behavior of nanoparticles during their formation, in their response behavior on chemical or electrochemical stress, and in particle/particle interactions. This concept…
Mesoporous silica materials benefit from unique features that have attracted substantial interest for their use as catalyst-immobilization matrices. These features include high surface area, chemical, thermal, and mechanical stability, highly uniform pore distribution and tunable pore size, high adsorption capacity, a…
Ti-6Al-7Nb was deformed by high-pressure torsion to improve the mechanical properties of the alloy. high-pressure torsion was conducted at room temperature under pressures of 2 and 6 GPa for disk-shaped specimens. Microstructure was characterized by transmission electron microscopy (TEM) and X-ray diffraction analysis…
The nano amorphous interface is important as it controls the phase transition for data storage. Yet, atomic scale insights into such kinds of systems are still rare. By first-principles calculations, we obtain the atomic interface between amorphous Si and amorphous Sb2Te3, which prevails in the series of Si-Sb-Te phas…
The effect of fabric parameters such as weight, thickness, and stitch density on the ultraviolet (UV) protection of knitted fabrics was studied. Different knitting structures such as plain, pineapple, lacoste, and other combinations of different knitting stitches of knit, tuck, and miss as well as half milano, full mi…
In the catalytic oxidation of cycloalkenes and linear internal alkenes using oxygen radical initiators are not required if the stabilisers are removed prior to reaction.
Liquid-phase hydrogenation of phenylacetylene was investigated with Pd and PdZn alloy catalysts in toluene compressed by CO2. The influence of alloying and dense phase CO2 on the rate of conversion and the product selectivity was examined. With either Pd or PdZn the partially hydrogenated product of styrene was produc…
Carbosilane-terminated 5-phenylpyrimidine mesogens rank among the best ‘de Vries-like’ liquid crystals.
A series of 4-nitrophenylacrylonitrile and phenylacrylonitrile derivatives consisting of a carbazole moiety was synthesized. Some of these derivatives with longer alkyl chains and a nitro group could gelatinize some organic solvents, such as ethanol, n-butanol, ethyl acetate, and DMSO. By contrast, phenylacrylonitrile…
Band gap energy and electrical conductivity of poly(phenylene-thiazolo[5,4- <italic>d</italic> ]thiazole) were compared for different dopants.
A new chloro-bridged heterobimetallic Cu(II)Re(IV) chain of formula {Cu(pyim)(Him)2ReCl6}n·MeCN (·MeCN) has been prepared and magnetostructurally characterised. Compound is the first example of the [Re(IV)Cl6](2-) anion acting as a metalloligand towards a paramagnetic metal ion.
Dilute poly( <italic>N</italic> -isopropyl acrylamide)s pass through a coil-to-globule transitions. Some hyperbranched compositions have biphasic core–shell morphologies with globular cores and open coil shells dependent on the degree of branching.
A series of Al based composites were prepared using mechanical milling method in this paper. Effects of additives including CaO, NaCl salt and low melting point metals (Ga, In, and Sn) on the hydrolysis activity of Al based composites were evaluated in pure water. Scanning electron microscopy (SEM) and X-ray diffracti…
Nb doping significantly improves the structural stability and electrochemical performance of La <sub>0.1</sub> Sr <sub>0.9</sub> Co <sub>1−x</sub> Nb <sub>x</sub> O <sub>3−δ</sub> .
A new type of fluorescent pH indicator has been developed whereby two dissimilar amino-styryl units are attached to a boron dipyrromethene (Bodipy) dye. The photophysical properties of this hybrid dye, and its simpler counterparts bearing only a single amino-styryl residue, depend on the polarity of the surrounding me…
A microporous organic polymer based on 1,3,5-trihydroxybenzene was synthesized, and the structure and properties of the resultant polymeric organic framework (POF) were determined by a series of characterizations. The POF acted as a host to load different amounts of LiCl for the preparation of humidity sensitive mater…
Thermal sensitive photoluminescence of CdTe quantum dots was used for micro-electromechanical systems temperature measurements in the high temperature range.
Thin films of bio-compatible poly(lactic acid) with highly ordered hexagonal patterns were successfully fabricated under normal ambient conditions without using any surfactant via an improved phase separation method. The patterned surface was successfully applied to fabricate silicon/copper dome-patterned electrodes f…
Gold nanoparticles are confined and stabilized within the channels of SBA-15 through the poly(ionic liquid) brushes that are anchored onto the pore walls of SBA-15. The supported gold catalyst exhibited remarkably high catalytic activities for selective oxidation of silanes into silanols using water as an oxidant with…