Materials Literature
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The n = 3 Ruddlesden-Popper phase Sr3LaFe1.5Co1.5O10+/-delta is capable of sustaining O contents as low as O7.5 with a mean metal oxidation state of +2 and three coordination at the central site in the trilayer of originally octahedral transition metal sites. The shortening of the axial bonds to the flanking octahedra…
Crystal structures and enthalpies of formation of complex hydrides of magnesium have been investigated through band structure calculations based on density functional theory. As for many other inorganic solids, experimental crystal structures are excellently reproduced by the computational results. Further, experiment…
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The wide-angle scattering of X-rays (WAXS) by anisotropic powders of nano-layered crystallites (nano-stacks) is addressed. Assuming that the orientation distribution probability function f of the nano-stacks only depends on the deviation of the crystallites' orientation from a fixed reference direction, a relation pro…
Sessile-drop-induced bending of atomic force microscope cantilevers: a model system for monitoring microdrop evaporation, Haschke, Thomas, Bonaccurso, Elmar, Butt, Hans-Jürgen, Lautenschlager, Daniel, Schönfeld, Friedhelm, Wiechert, Wolfgang
Berlin green FeFe(CN) 6 microcubic crystals have been successfully prepared by a simple hydrothermal process between K 3 [Fe(CN) 6 ] with Na 2 S 2 O 3 aqueous solution, free of any surfactant or template. The experimental results clearly show that the molar ratio of K 3 [Fe(CN) 6 ] to Na 2 S 2 O 3 and their concentrat…
We describe a high-pressure x-ray diffraction (XRD) study of the compressibility of several samples of ZnS nanoparticles. The nanoparticles were synthesized with a range of sizes and surface chemical treatments in order to identify the factors that determine nanoparticle compressibility. Refinement of the XRD data rev…
Abstract A novel method for preparing organosoluble and conducting polyaniline (PANI) is presented. It is demonstrated that Cu(II) is an excellent catalyst for the polymerization of aniline by air oxygen in aqueous emulsions. Reactions carried out at 0 °C or at room temperature yield PANIs of reasonably high molecular…
Contradictory results concerning the formation of a ferromagnetic state in Mn doped ZnO layers have been reported in the last years. We present the results of an electron paramagnetic resonance study on homogeneous single phase $n$-type conductive ${\mathrm{Zn}}_{1\ensuremath{-}x}{\mathrm{Mn}}_{\mathrm{x}}\mathrm{O}$…
Dielectric spectra of several solid solutions of $\mathrm{Pb}{\mathrm{Mg}}_{1∕3}{\mathrm{Nb}}_{2∕3}{\mathrm{O}}_{3}\text{\ensuremath{-}}\mathrm{Pb}{\mathrm{Sc}}_{1∕2}{\mathrm{Nb}}_{1∕2}{\mathrm{O}}_{3}\text{\ensuremath{-}}\mathrm{Pb}{\mathrm{Zn}}_{1∕3}{\mathrm{Nb}}_{2∕3}{\mathrm{O}}_{3}$ (PMN-PSN-PZN) relaxor ferroele…
Solid solutions of manganese‐substituted brownmillerites and their stability range in the Ca 2 Fe 2 O 5 –“Ca 2 Mn 2 O 5 ”–“Ca 2 Al 2 O 5 ”‐system were investigated. Samples were synthesized by solid‐state reactions in temperature ranges at 1250°–1300°C. The phase development was investigated by powder X‐ray diffractio…
The volcanic exhalation product chlorartinite, [Mg 2 (CO 3 )(H 2 O)(OH)]Cl·H 2 O, has recently been found to be a minor, and in some samples a major, component of magnesia floors for industrial use. In order to be able to perform quantitative phase analysis using the Rietveld method, its crystal structure was determin…
BSA and fibrinogen adsorption to ultrathin nonfouling coatings was investigated using surface plasmon resonance spectroscopy. The nonfouling coatings were prepared by pulsed plasma polymerization (pp) of di(ethylene glycol) monovinyl ether (EO2). The pp-EO2 coatings were characterized by X-ray photoelectron spectrosco…
A convenient and efficient route to the stable and soluble alkoxo hydridozinc clusters {[HZnO t Bu] 3 [Li(thf)O t Bu]}, {[HZnO t Bu] 2 [Li(thf)O t Bu] 2 }, and {[HZnO t Bu][Li(thf)O t Bu] 3 } is described by cluster core metathesis reactions between [HZnO t Bu] 4 and [LiO t Bu] aggregates in THF solutions. They are th…
This paper uses an innovative peak profile matching method to determine compositional depth profiles of Cu(In,Ga)(S,Se) 2 thin films and other suitable solid-solution compounds. A layer absorption model allows the generation of grazing-incidence diffraction patterns on the basis of the known diffractometer instrument…
We describe a gelation process based on the unrelaxed coalescence of partially crystallised droplets in a primary oil-in-water emulsion. Under the effect of a gentle thermal treatment, fluid emulsions turned into hard gels whose evolution was arrested by the solid nature of the droplets. The kinetic evolution of the b…
Cu-Pd/Al2O3 bimetallic catalysts have been characterized by XRD, TEM, and EDX techniques. The surface structure has been investigated by FT-IR spectroscopy of low-temperature adsorbed CO in the reduced and in the oxidized state. Evidence has been provided of the formation of Cu-Pd alloy nanoparticles, both of the alph…
Abstract This paper aims at reporting on the synthesis of a heterograft copolymer by combining the “grafting onto” process based on atom transfer radical addition (ATRA) and the “grafting from” process by atom transfer radical polymerization (ATRP). The statistical copolymerization of ε‐caprolactone (εCL) and α‐chloro…
A recent study by high-resolution neutron powder diffraction provided accurate crystallographic information for the newly developed ferromagnetic shape memory alloy 53 at.%Ni–25 at.%Mn–22 at.%Ga. This made it possible to study by high-resolution electron backscatter diffraction the local microstructures and the twinni…
A Gram-positive poly(3-hydroxybutyrate) (PHB)-degrading bacterial strain was isolated from compost. This organism, identified as Bacillus megaterium N-18-25-9, produced a clearing zone on opaque NB-PHB agar, indicating the presence of extracellular PHB depolymerase. A PHB depolymerase gene, PhaZ(Bm), of B. megaterium…