Materials Literature
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We propose a new approach for tuning the Surface Plasmon (SP) resonance wavelength using hybrid nanoparticles. Our approach is based on nanoscale photopolymerization around metal nanoparticles. The enhanced optical near-field of silver nanoparticles triggers local photopolymerization. As a result, atomic force microsc…
A new phenolic glycoside, sinapic acid 4-O-beta-d-(6'-sinapoyl)glucopyranoside (1) and a new sucrose ester, 6,6'-di-O-sinapoylsurcose (3), were isolated from the roots of Cynanchum amplexicaule (Sieb. et Zucc.), along with two known compounds, 6-O-[E]-sinapoyl-d-glucopyranoside (2) and sibricose A1 (4). Their structur…
This work describes an experimental study of the cross-plane thermal conductance of plasma-enhanced chemical vapor deposited (PECVD) diamond films grown as a result of bias-enhanced nucleation (BEN). The diamond films are grown on silicon wafers using a two-step process in which a nucleation layer of amorphous or diam…
Mixtures of mineral aggregate and modified sulfur, wherein the modified sulfur functions as a binder, are termed sulfur concretes or sulfur mortars depending on the form of the mineral aggregate. Molten sulfur reacted with olefinic additive, at 130-140 ºC, and then mixed with preheated filler and aggregates. Sulfur mo…
The interaction of CO with solid surfaces is a topic of fundamental and applied interest. Nowadays there is an increasing attention on alternative energy carriers, like efficient in situ conversion of methanol to hydrogen. There are several studies in the literature about the catalytic activity of Pd and Rh for dehydr…
Interpixel uniformity is critical to image quality, and is hard to be improved by structural reformation of emissive elements because of nonuniformity in luminance characteristics of subpixels in self-emissive device like the carbon nanotube field emission display (CNT-FED). In this paper, we discuss the improvement o…
As the dimensions of electric devices continue to shrink, it is becoming increasingly important to understand how to obtain good quality gate oxide film materials wilth higher carrier mobility, lower leakage current and greater reliability. All of them have become major concerns in the fabrication of thin film oxide t…
A novel fabrication procedure is developed that allows for the direct measurement of the linear electrooptic coefficient of semiconducting nanowires to determine their viability for use in electrooptic devices. Vertically aligned InP nanowires are transferred from their growth substrate to a glass substrate using a ho…
Abstract Rossells fiber reinforced polypropylene composites were prepared by melt mixing. The fiber content was 20 wt%. Octadecyltrimethoxysilane (OTMS) and maleic anhydride grafted polypropylene (MAPP) were used to improve the adhesion between poly(propylene) (PP) and the fiber. The mechanical, rheological, and morph…
The methods of automation of the procedure for crystal structure model refinement from experimental diffraction data, implemented in the ASTRA program package, are described. Such tools as statistical tests, parameter scanning, and data scanning reduce the time necessary for structural investigation. At strong correla…
The reaction of acetamide with PtphenCl2 gave a mixed-valence black-brown-colored platinum complex Ptphen(NHCOCH3)NO3 (I), which was studied by X-ray diffraction. The monoclinic crystal (a = 16.389(6) Å, b = 19.664(6) Å, c = 11.049(4) Å; β = 122.8(3)°, V = 2993(18) Å3, space group C2/m, Z = 4, R = 0.0432) is built of…
Electronic structures and optical properties of GaN and ZnO nanowires with diameters of ~1 nm are investigated using the highly precise all-electron full-potential linearized augmented plane-wave (FLAPW) method. The calculated results demonstrate that the band gap energy of both passivated and unpassivated nanowires b…
The globular metallic cage organosiloxanes [RSiO2]12[Cu4M4] (where R = Me, CH2=CH or Ph and M = Na or K) can be converted to the corresponding alkaline Li derivatives in an ion-exchange reaction with LiCl under mild conditions (in up to 79% yields). The [RSiO2]12Cu4Li4 compounds have been synthesised and their structu…
The optical properties of sputter deposited amorphous tungsten oxide films have been measured in-situ during slow electrochemical cycling in a lithium containing electrolyte. Amorphous films exhibit coloration under Li insertion and bleaching under Li extraction. Substoichiometric films show almost reversible optical…
Article Refinement of the crystal structure of aquazinc(II) glutamate hydrate, Zn(H2O)(C5H7NO4) · H2O was published on March 1, 2008 in the journal Zeitschrift für Kristallographie - New Crystal Structures (volume 223, issue 1).
The crystal structure and the superconductivity for samples Mg(B 1- x C x x ) 2 (0 x 0.09) prepared by a hybrid microwave synthesis have been investigated. The starting material B 10 C is also obtained by using the microwave method. The carbon can distribute uniformly in the Mg(B 1- x C x ) 2 samples because boron…
Characteristics of field-induced electron emission were investigated for one of newly designed all-carbon materials – nanodiamond composite (NDC). The composite is comprised by 4‥6 nm diamond grains covered with 0.2‥1 nm-thick graphite-like shells that merge at grain junctions and determine such properties as mechanic…
ABSTRACT Corrosion inhibition of mild steel (MS) in 1M hydrochloric acid (HCl) medium and 1M sulfuric acid (H 2 SO 4 ) medium by sulfadimidine (SDE) have been studied by weight loss method, electrochemical measurements, SEM and quantum chemical studies. The weight loss studies were conducted at different temperatures…
Abstract Hexagonally ordered mesoporous silica MCM-41 was successfully prepared by using titled (OTMA) chloride at OTMA/SiO2=2.8–3.5. The BJH pore diameters were 1.4–1.5 nm which was on the prolongation of the correlation line between the chain length of surfactant and the pore diameter.
Low band gap pi-conjugated polymers composed of phenothiazine, bithiophene, and perylene moieties were prepared in high yields by using a palladium-catalyzed Suzuki coupling reaction. The polymers were characterized by NMR, gel permeation chromatography, and elemental analysis. The characterizations revealed that high…