Materials Literature
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Oxygen Stoichiometry in La 0.6 Sr 0.4 CoO 3-δ and La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3-δ Cathodes under Applied Potential as a Function of Temperature and Oxygen Partial Pressure, Measured by Electrochemical in Situ High-Temperature XRDF1022
Solar power is the best option to replace fossil fuels to meet global energy demands. Current photovoltaic and artificial photosynthetic systems require improvements and include the development of: 1) inexpensive, abundant, non-toxic charge separation catalysts that absorb visible light; 2) stable catalysts with high…
The particular properties of carbon nanoparticles (CNPs) have generated great interest in biomedicine, bioanalysis and optoelectronics. However, an association between the CNPs' physicochemical properties with their molecular and morphological characteristics is, even today, a topic of discussion. In this work, we use…
The mechanism of two-dimensional (2D) crystal formation from an air-drying suspension of soft microgel particles is investigated via in situ confocal laser scanning microscopy (CLSM). According to the time-resolved radial distribution function g(r), the process can be divided into two separate stages, i.e., nucleation…
The effect of UV-crosslinking on the morphological, mechanical and barrier properties of a hybrid coating based on an epoxidized acrylic polymer filled with silica nanoparticles, incorporated in situ through the sol–gel method, was studied. A systematic comparison of coatings loaded with various amounts of silica nano…
In this paper, spherical calcium carbonate (CaCO3) with ordered lamella nanostructure was prepared by using regenerated silk fibroin (RSF) as a crystal modifier via compressed CO2. The crystal morphology could be tuned from lens-like to spherical by altering RSF concentration, reaction time, and temperature. Time-reso…
The chemical bath deposition (CBD) method has become very popular in recent years, especially for the thin film deposition, because it has less expensive than other thin film deposition methods which allows for the manufacture of relatively low cost devices. Cd0.9Zn0.1S thin films have been deposited on galass substra…
The research on hybrid materials composed of inorganic and organic species in the nanometer range is motivated by the synergic combination of their native properties in a unique material. In this paper, we report a new one-pot synthesis of a ternary nanocomposite based on a conducting polymer (polyaniline – PANI) and…
CuCrZr alloys are attractive metallic materials for applications on trolley wire of electric locomotive, integrated circuit and fusion reactor. The solid solution CuCrZr alloys were thermo-mechanically treated by heating up to various temperatures from 100 °C to 300 °C for aging treatment. Different tension elongation…
We present a multifunctional nanoparticle platform that has targeting moieties shielded by a matrix metalloproteinase-2 (MMP2) cleavable PEG coating. Upon incubation with MMP2 this surface-switchable coating is removed and the targeting ligands become available for binding. The concept was evaluated in vitro using bio…
Dendrimers with benzothiazole–benzoxazole surface groups and electron transporting triazole as bridging units and diphenyl sulfone as core unit were synthesized successfully by Cu(I)-catalysed Huisgen ‘click reaction’ using a convergent approach. All the dendrimers exhibit excellent optical and electrochemical propert…
The paper proposes a measurement method for obtaining the parameters needed to calculate a reliable indicator of the state of transformer core saturation. The major nonlinear effects in transformer core are saturation, eddy current and hysteresis. Saturation is the predominant effect in power transformers, followed by…
The objective of this study is to investigate the possibility of continuous extrusion forming (Conform process) and microstructural evolution the of Cu-Mg alloy. The results indicate that Conform process can break as-cast grains and refine the structure, meanwhile. This process can improve the degree of the structure…
We describe herein the synthesis of a series of multi-end functionalized poly(N-vinyl pyrrolidone) (PVP) additives bearing two or three C8F17 fluoroalkyl (CF) groups, designed as additives to modify surface properties. The PVP additives were prepared by reversible addition–fragmentation transfer (RAFT) polymerization,…
Gadobutrol is a 1-molar gadolinium-based contrast agent with well-characterized safety and efficacy for magnetic resonance imaging (MRI) in adults and children ≥ 2 years old. This observational study assessed gadobutrol-enhanced MRI in children < 2 years of age. Sixty infants (mean age 11.1 months) underwent MRI using…
The geometries, electronic and magnetic properties of neutral and negatively charged Mn(coronene)m (M = V and Ti; n, m = 1, 2) complexes were investigated using density functional theory. The results show that one V or Ti atom prefers to occupy the η(6)-site in M(coronene)(0/-) complexes and to be sandwiched between t…
Polymers of N-phenylanthranilic acid were obtained by oxidative polymerization in the heterophase system in the presence of chloroform. Effect of synthesis conditions on the chemical structure of the polymers was studied. It was found that the growth of polymeric chain occurs via C-C joining into 2- and 4-positions of…
A series of nano ceria samples containing 0 to 2 mol% europium were synthesized following the co-precipitation hydrothermal technique. The X-ray diffraction patterns showed peaks corresponding to the fluorite structure of cubic ceria with shifting of the peak positions, but did not show any Eu-related peaks. The fouri…
A new diamine with a tert-buty-substituted triphenylpyridine unit was synthesized and used in the preparation of polyimides via a one-step polymerization. The polyimides are completely amorphous and exhibit good solubility in organic solvents. As a result of the presence of bulky substituents and rigid triphenylpyridi…
Solid solutions of (1 - x)Al2TiO5-xMgTi2O5 (x = 0 - 1) doped with alkaline feldspar were prepared. Thermal decomposition largely depends on the feldspar doping as same as the x value. It was found that decomposition free ceramics over 500 hours of heat treatment at 1100°C in an ambient atmosphere could be obtained for…