Materials Literature
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In this study, we developed a new drug delivery system using anodic oxidation. The growth of a porous oxide layer on aluminum under anodic bias in various electrolytes has been studied for more than 40 years. Anodic Aluminum Oxide (AAO) has many uniform nanopores on its surface. This nanoporous surface can be used for…
The aggregate size of cellulose dissolved in 1-ethyl-3-methylimidazolium acetate (EMIMAc) and 1-butyl-3-methylimidazoluim chloride (BMIMCl) was measured by static and dynamic light scattering. Examined were cellulose solutions containing various amounts of water. The impact of water on the size of cellulose particles…
A mixture of MgO and graphite with a molar ratio (1 : 1) was subjected to planetary ball milling for 1, 2, 4, and 8 h with the intention of enhancing carbothermic reduction reaction of MgO during subsequent thermal treatment. Unmilled and milled mixtures were characterized using a combination of X-ray diffraction (XRD…
In this communication, we demonstrate that certain kinds of Rh porphyrins on carbon black can electrochemically oxidize aldose at low potentials. The onset potential was much lower than those with the other complex-based catalysts. A product analysis suggested that this reaction involves 2-electron oxidation of the al…
The viscous flow of oxide driven by the electrostriction force during the growth of anodic aluminum oxide is treated by linear stability and scale analysis. A uniform oxide film is unstable to a periodic deformation. The restabilization of pore growth is examined by scale analysis of the steady pore diameter. The patt…
The electrochemical preparation of poly(3,4-ethylenedioxythiophene) (PEDOT) is conducted in liquid crystal (LC) electrolyte solution with nematic (N), cholesteric (Ch*), and smectic A (SmA) phases under a magnetic field. The polymer imprints the molecular arrangement of the LC electrolyte during the polymerisation pro…
Strontium-substituted lanthanum manganite/yttria-stabilized zirconia (LSM/YSZ) solid oxide fuel cell (SOFC) composite electrodes were fabricated with slurry spraying on both sides on either pure YSZ electrolyte foils or YSZ electrolyte foils with a cerium–gadolinium oxide (CGO) barrier layer made by spin coating. Elec…
Assembly of mesostructured silica using Pluronic P123 triblock copolymer (EO20-PO70-EO20) and n-butanol is a facile synthesis route to the MCM-48-like ordered large mesoporous silicas with the cubic Iad mesostructure, which are designated KIT-6. This synthesis route has been successfully extended to phenylene-bridged…
Glycerol-plasticized corn starch materials (TPS), reinforced with calcium bentonite, were prepared by melt extrusion. Scanning electron microscopy was used to visualize extrudates morphology. The effects of clay content and of glycerol content on physical properties of extrudates were evaluated. As determined by X-ray…
The corrosion resistance of the new Ti-6Al-4V-1Zr alloy in comparison with ternary Ti-6Al-4V alloy in Ringer-Brown solution and artificial Carter-Brugirard saliva of different pH values was studied. In Ringer-Brown solution, the new alloy presented an improvement of all electrochemical parameters due to the alloying w…
A tubular solid oxide fuel cell stack was modeled, and its operation on biomass syngas was investigated. The objective of this work was to develop a computer simulation model of a biomass gasification–solid oxide fuel cell system capable of predicting performance under various operating conditions and using diverse fu…
The molecular recognition properties of pseudopeptidic macrocycles have been studied by ESI-MS and NMR spectroscopy, as highly complementary experimental techniques in solution and in the gas phase. We used ESI-MS competition experiments for the high throughput screening of the supramolecular interaction between four…
The cross-linked (1 × 2) reconstruction of TiO(2)(110) is a frequently observed phase reflecting the surface structure of titania in a significantly reduced state. Here we resolve the atomic scale structure of the cross-linked (1 × 2) phase with dynamic scanning force microscopy operated in the non-contact mode (NC-AF…
In this article, mercapto-functionalized helical mesoporous silica nanorods have been synthesized by a one-step co-condensation of tetraethoxysilane (TEOS) and 3-mercaptopropyltrimethoxysilane (MPTS) using cetyltrimethylammonium bromide (CTAB) as a template. Process parameters, including MPTS concentration, stirring t…
Terpy embraces (TE) are intermolecular motifs involving metal complexes of the type [M(terpy)2]2+ (terpy = 2,2′:6′,2″-terpyridine), based on concerted offset-face-to-face (OFF) and edge-to-face (EF) interactions between pyridyl rings. These embraces are well known to occur as extended two-dimensional grid motifs in cr…
Oxides La0.4Sr0.6Co1 − x Fe x O3 − δ (x = 0.2 and 0.4) were synthesized by the ceramic technology. The kinetics of exchange and diffusion of oxygen in these oxides were studied by the isotopic exchange method over the temperature range 600–900°C at an oxygen pressure of 10 torr. The temperature dependences of interpha…
Continuous core-shell nanofibers with poly(isoprene-block-dimethylaminoethyl methacrylate) (PI-b-PDMAEMA) block copolymer/polymer derived ceramic (PDC) precursor nanocomposites as cores enveloped in rigid polyacrylonitrile (PAN) shells were nanomanufactured using coaxial electrospinning. The cylindrical confinement im…
A red-emitting molecular europium(III) complex has been doped into liquid-crystalline (LC) physical gels consisting of 4-pentyl-4′-cyanobiphenyl (5CB) with amino acid-based gelators. Light scattering cells on the basis of these LC physical gels could be switched between a non-transparent off-state and a transparent on…
This study reports a noncovalent functionalization of MWCNTs with a fluorinated cross-linked polymer coating of poly[cyclotriphosphazene-co-(4,4'-(hexafluoroisopropylidene)diphenol)] and their application as the support of Pt for electrocatalytic oxidation of methanol.
Silicotungstic acid and phosphotungstic acid were prepared and characterized by Fourier Transform Infrared Spectroscopy (FTIR) and X-ray diffraction (XRD). The results showed that the prepared catalysts possess classical Keggin structure. The factors on the degradation of methyl orange, such as the kind of catalyst, t…