Materials Literature
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An ion-exchangeable layered polysiloxane containing alkylammonium groups was synthesized by sol–gel reaction of 3-aminopropyltrimethoxysilane (APTMOS) catalyzed by hydrochloric acid; the present reaction system provides a new method for the preparation of layered polysiloxane materials.
Red phosphorescence properties on Mn ions doped MgO–GeO2 compounds, Mg4GeO6,Mg2GeO4, and MgGeO3, were investigated. The red phosphorescence was observed in MgGeO3:Mn2+. The red phosphorescence intensity of MgGeO3:Mn2+ increased withadding the MgF2 and Yb2O3. The red phosphorescence duration time of sample with a batch…
Large facetted hollow silica vesicles were synthesized by directed growth of silica on equilibrium icosahedrally facetted catanionic vesicles, made from cetyltrimethylammonium hydroxide/myristic acid surfactant bilayers. Three critical parameters were identified: (i) the surface charge of the vesicles; (ii) the rate o…
Photoemission is one of the principal techniques for the characterization and investigation of condensed matter systems. The field has experienced many developments in recent years, which may also be put down to important achievements in closely related areas. This timely and up-to-date handbook is written by experts…
A technical background on and applications of a guided wave technology called the magnetostrictive sensor are described. The magnetostrictive sensor technology is for long range global testing and condition monitoring of structures such as piping, plates and steel cables. For long range testing of piping in processing…
The electrochemical double-layer capacitor (EDLC) is an emerging technology that promises to play an important role in meeting the demands of electronic devices and systems both now and in the future.This paper traces the history of the development of the technology.and explores the principles and theory of operation.…
Abstract Additives have a great effect on the crystal morphology of organic compounds. The molecular modeling techniques were applied to predict the morphological modifications induced by additives. Besides molecular modeling software additionally some simulation approaches are needed. The build‐in and the surface doc…
An electrochemical method for the preparation of sodium peroxycarbonate at boron-doped diamond anodes has been described. Effects of experimental conditions such as current density, electrolyte concentration and anode materials on the formation of sodium peroxycarbonate have been investigated. The maximum current effi…
- The retention of chemical structure and functional groups during pulsed plasma polymerization was used for producing adhesion-promoting plasma polymer layers with high concentrations of exclusively one kind of functional groups, such as OH, NH2, or COOH. The maximum content of functional groups was 31 OH using allyl…
Aerogels are well-known mesoporous materials whose low density and high surface area result from synthesis methods that enable the pore solvent to be removed without collapsing the solid network phase. The interconnected porosity provides both molecular accessibility and rapid mass transport via diffusion, and for the…
Polymer nanocomposites including those containing carbon nanotubes appear to be of particular significance. Polymer nanocomposites based on thermoplastic poly(ether-ester) elastomer and carbon nanotubes have been prepared and investigated. The nanocomposites are obtained (in situ) by introducing the fillers into the r…
Scanning electrochemical microscopy (SECM) was used to spatially resolve the heterogeneous cathodic activity at AA2U24 surfaces. Experiments used a 10 μm diameter Pt microelectrode in a solution containing the protonated form of (dimethylamino) methylferrocene [DMAFc + , i.e., the Fe(II) state]. The tip was brought ne…
The contribution addresses the bridge between high temperature chemistry at which thermodynamic defect equilibrium with neighbouring phases can be assumed, and low temperature physics in which usually only electronic carriers behave reversibly. An optimised quenching procedure is discussed to obtain profile-free repro…
In this paper, we report on the oxidation kinetics in air of the ternary compounds (actual Nb:Al:C atomic ratios 1.95:1.05:0.95) and (actual Ti:Nb:Al:C ratios 0.94:1.06:0.93:0.94). In the 650-800°C temperature range, the oxidation reaction for the former occurs in two steps. First is At longer times and higher tempera…
A microwave-assisted reaction between Mo(CO)6 and Se has yielded MoSe2 nanoparticles. Nanorods of MoSe2 of lengths ranging from 45 to 55 nanometers are identified in the product mixture. The prepared MoSe2 has been characterized by X-ray powder diffraction measurements, FTIR spectroscopy, photoacoustic spectroscopy (P…
The lithium intercalation into a V 2 O 5 substrate was studied by chronopotentiometry. The samples were prepared by atomic layer chemical vapor deposition which provides homogenous and coherent layers at the surface of titanium plates. During the chargedischarge process, various phase transitions occurred in the syste…
Particle oriented bismuth titanate ceramics with high density was successfully developed by a novel processing involving a high magnetic field. The b axes of fine powder particles were oriented perpendicular to the applied magnetic field in the green compact. High density was achieved by subsequent sintering. The micr…
The density and molar heat capacity at constant pressure of silicon have been determined with use of molecular dynamics (MD) simulation. The interaction between silicon atoms was expressed by the Sttilinger-Weber potential and MD calculation was conducted on crystalline, liquid and amorphous states of silicon at tempe…
A novel hydroperoxo-copper(II) complex with a square-planar geometry has been prepared, which has exhibited a higher selectivity and catalytic reactivity for dimethyl sulfide, in contrast to that with a trigonal-bipyramidal one.
Electrochemical Copper Deposition in Etched Ion Track Membranes : Experimental Results and a Qualitative Kinetic Model , Schuchert, I. U., Molares, M. E. Toimil, Dobrev, D., Vetter, J., Neumann, R., Martin, M.