Materials Literature
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This paper describes a Fortran program, IsGISAXS , for the simulation and analysis of grazing-incidence small-angle X-ray scattering (GISAXS) of islands supported on a substrate. As is usual in small-angle scattering of particles, the scattering cross section is expressed in terms of an island form factor and interfer…
Unique electronic and chemical properties of metal nanoparticles have drawn the attention of chemists, physicists, biologists, and engineers who wish to use them for the development of new generation nanodevices. Metal nanoparticles such as gold and silver show noticeable photoactivity under UV−visible irradiation as…
ADVERTISEMENT RETURN TO ISSUEPREVCommentNEXTKinetics and Mechanism of MoO3 Reduction. Comments on “In Situ XAS and XRD Studies on the Formation of Mo Suboxides during Reduction of MoO3”Jerzy SłoczyńskiView Author Information Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8…
Structural and chemical evolution paths of white K-mica and chlorite from low-temperature metamorphic rocks are studied by X-ray powder diffractometry and electron probe micro-analysis in order to determine the effects of lithology expressed by bulk rock major element chemistry on the phyllosilicate reaction progress.…
Abstract Surface‐enhanced Raman scattering spectra of 1‐phenyl‐5‐mercaptotetrazole (PMT) and of the corresponding sodium salt adsorbed on silver sols were recorded in the 3700–2800 and 1800–150 cm −1 regions. The SERS spectra obtained in both cases are the same, therefore it can be deduced that PMT adsorbs on silver s…
We investigate energy resolved electric current from various correlated host materials under out-of-equilibrium conditions. We find that, due to a combined effect of electron-electron interactions, nonequilibrium and multiparticle tunneling, the energy resolved current is finite even above the Fermi edge of the host m…
Tritium is an element of considerable interest in the nuclear industry. Since it is radioactive, it needs to be stored in a safe but easily recoverable manner. It is an isotope of H, and hence some of the techniques used for hydrogen storage can be employed, the safest being its storage in the form of a tritide. Howev…
A new metastable binary compound with the skutterudite crystal structure has been synthesized from modulated elemental reactants, through an amorphous intermediate, using a novel low-temperature synthesis technique. The amorphous reaction intermediate undergoes nucleation at 87 degrees C, an extremely low temperature…
The supercooled liquid of triphenyl phosphite (TPP) transforms into a second radiographically amorphous phase by isothermal treatment in the temperature range 215−230 K. We studied the local structural arrangement of both the structural glass (phase aI) and the newly formed phase (aII) by doping triphenyl phosphite wi…
The aim of this study was to create a dense albuminated layer, a heparinized layer, and a mixed layer on a poly(acrylic acid)-grafted surface via visible light induced photopolymerization. The procedure is comprised of four reaction steps: first, by visible light irradiation, acrylic acid (AA) was graft-polymerized on…
Abstract Raman microscopy was used to characterize synthesized hydrotalcites of formula Mg x Zn 6− x Al 2 (OH) 16 (CO 3 )·4H 2 O. The Raman spectra are conveniently subdivided into spectral features based on (a) the carbonate anion, (b) the hydroxyl units and (c) metal–oxygen units. A model is proposed based on a trip…
Superionic material PbSnF 4 prepared by precipitation from aqueous solution was characterized by x-ray diffraction, DTA and 19 F nuclear magnetic resonance (NMR) techniques. The temperature and frequency dependence of the conductivity, the modulus and the dielectric properties were investigated by means of impedance s…
Abstract A new compatibilized method was used to prepare thermoplastic elastomer (TPE) of nitrile rubber (NBR) and polypropylene (PP) with excellent mechanical properties by dynamic vulcanization. Glycidyl methacrylate (GMA) grafted PP/amino‐compound was used as a compatibilizer. The effects of the curing systems, com…
We performed tight-binding molecular-dynamics simulations of the reactive collision of graphitic patches and found that nuclei of nanotube, nanohorn, and nanocage were formed after the collision. In the reaction, chemical bonds were initially formed at one to three edges depending on the relative stacking of the patch…
The crystal-field energy-level structure of the ${\mathrm{Er}}^{3+}$ ground-state multiplet in ${\mathrm{ErVO}}_{4}$ was investigated by inelastic neutron scattering and magnetic susceptibility methods. The quantitative determination of the crystal-field-level energetics in conjunction with elastic-constant data was u…
Abstract The rf power was modulated (discharge on‐time of 10 μs and discharge off‐time of 50–500 μs), for pulsed argon (Ar) and oxygen (O 2 ) plasmas used to irradiate PET film surfaces to modify the film surfaces. From data regarding the contact angle for the modified PET film surfaces and chemical analyses with XPS,…
Poly(L-lactide)-based microspheres having cationic or anionic surfaces were prepared using polydepsipeptide-block-poly(L-lactide)s as surfactants. Polydepsipeptide-block-poly(L-lactide)s having amino or carboxylic acid groups on their side chains were synthesized through anionic ring-opening polymerizations of L-lacti…
Two excess-boron olenite samples which had been synthesized from a reaction mixture of 0.625 Na 2 O · 4.5 Al 2 O 3 · 6.0 SiO 2 · 3.0 B 2 O 3 + excess H 2 O at 600°C / 25 kbar (sample 1) and 650°C / 20 kbar (sample 2) were structurally analyzed by a Rietveld refinement. The investigated tourmalines possess space group…
The syntheses of the first transition metal corrolazine complexes, in which the meso carbon atoms of a corrole framework have been replaced by N atoms, are reported. Metalation of the corrolazine [(TBP)(8)CzH(3)] (TBP = 4-tert-butylphenyl) (1) with Co(acac)(2) gives [(TBP)(8)CzCo(III)] (2) in good yield. Addition of P…
While previous high-pressure optical and vibrational studies on CdSe quantum dots (QD's) have observed no evidence for size-dependent scaling laws in the experimental pressure behavior, we have found that low-pressure studies exhibit anomalous pressure dependencies that can be analyzed in two specific size regimes $(r…