Materials Literature
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Dynamisch: Ein linearer Dialdehyd, CdII-Ionen und verschiedene Amine wurden zum Aufbau mehrerer Architekturen genutzt, darunter ein M2L34+-Tripelhelicat, ein M3L36+-Dreieck, ein M4L8+-Kryptat und ein hexagonales M12L1824+-Prisma. Diese Strukturen konnten durch Iminaustausch, Zugabe eines Templats oder Änderung des pH-…
A detailed magnetization study for the novel FeSe superconductor is carried out to investigate the behavior of the intrinsic magnetic susceptibility χ in the normal state with temperature and under hydrostatic pressure. The temperature dependences of χ and its anisotropy Δχ = χ([parallel]) - χ([perpendicular]) are mea…
The accurate determination of critical dimensions and roughness is necessary to ensure the quality of photoresist masks that are crucial for the operational reliability of electronic components. Scatterometry provides a fast indirect optical nondestructive method for the determination of profile parameters that are ob…
ABSTRACT Ionic liquids (ILs) are outstanding microwave‐absorbing agents due to their high ionic conductivity and polarizability, thus leading to a high heating rate and considerably shortened reaction time. In this study, a series of novel chiral poly(amide–imide) (PAI) nanostructures with hydroxyphenyl pendant units…
A simple and widely applicable approach to assemble long-range two-dimensional mobile arrays of functionalized nickel nanorods with tunable and "highly open" lattice structures is presented. The magnetic assembly of uniformly oriented nanorods in triangular lattices was achieved by a phase separation of the surface co…
Nd 2 Fe 14 B/ α -Fe-based hard/soft nanocomposite magnets with Co addition have been prepared by ball-milling and warm compaction. It was found that Co addition into the magnetically hard phase improves magnetic properties significantly, especially the remanence ratio and coercivity. The effect on the magnetic propert…
Abstract Nanocomposites of polyamide 6 (PA6) with different concentrations of silane‐treated, organic‐treated, and nontreated nanoparticles of halloysite (HNT) and montmorillonite (MMT) had their microstructure and melt and solid state rheological behavior analyzed. The microstructure analysis was done using transmiss…
Studies on the macroscopic and microscopic packing properties of nonconvex particles are scarce. As a common concave form, the curved spherocylinder is used in the simulations, and its bending and elongation effects on the random packings are investigated numerically with sphere assembly models and a relaxation algori…
Abstract Acrylonitrile–butadiene–styrene copolymers (ABS) are known to be sensitive towards ageing which can lead to color changes, primary interest in this study. The color changes were expressed in terms of the CIELAB color system. ABS plaques were subjected to heat ageing and artificial weathering. Uncolored ABS an…
Localized ultraviolet photoresponse properties of bent ZnO microwires bridging two perfect Ohmic contacts in both atmospheric and high vacuum (8 × 10(-6) torr) environments have been investigated for the first time to explore the bending strain effect on the photoelectrical properties of ZnO. It is found that the ZnO…
A big challenge: The experimental electron density of CoSb3 was determined based on short-wavelength single-crystal synchrotron data (10 K), thereby giving a view of covalently bonded Co and Sb atoms that carry only small negative and positive charges, respectively. This result contradicts the conventional view of the…
Single- and multilayer graphene and highly ordered pyrolytic graphite (HOPG) were exposed to a pure hydrogen low-temperature plasma (LTP). Characterizations include various experimental techniques such as photoelectron spectroscopy, Raman spectroscopy and scanning probe microscopy. Our photoemission measurement shows…
Größe, Form und Zusammensetzung sind Parameter beim Design möglichst leistungsfähiger Nanokatalysatoren. Die Schalendicke von Nanokristallen mit Kern-Schale-Strukturen lässt sich einstellen, was eine Kontrolle über die elektronische Struktur und ihre Eigenschaften in der Katalyse ermöglicht. Monodisperse ikosaedrische…
Thermotropic liquid crystals exhibit strongly temperature-dependent positional correlations among molecules in the nematic phase above the transition to a smectic-A or C phase. However, even in the absence of a lower temperature smectic phase, nematics composed of reduced symmetry molecules (bent-core mesogens, for ex…
To investigate the effects of neutron irradiation on hydrogen isotope retention in tungsten, disk-type specimens of pure tungsten were irradiated in the High Flux Isotope Reactor in Oak Ridge National Laboratory followed by exposure to high flux deuterium (D) plasma in Idaho National Laboratory. The results obtained f…
The most highly charged water-soluble poly-ortho-substituted tetraarylporphycene (Pc8+) has been synthetized. The latter, which interacts in aqueous solutions with graphene oxide (GO) forming a photoactive ensemble Pc8+/GO, is immobilized by means of the Layer-by-Layer (LbL) technique onto ITO electrodes to afford nov…
Abstract The degradation of PET bottles has been successfully achieved using hydrotalcite as catalyst and dimethyl sulfoxide (DMSO) as solvent. The reaction was carried out at boiling point of DMSO (190°C) and degradation was complete in 10 min. The oligomer (tetramer) obtained was treated with NaOH at room temperatur…
The synthesis, characterization, self-assembly, and gel formation of poly(γ-benzyl-l-glutamate) (PBLG) in a molecular weight range from ca. 7,000-100,000 g/mol and with narrow molecular weight distribution are described. The PBLG is synthesized by the nickel-mediated ring-opening polymerization and is characterized by…
Results of high-energy X-ray diffraction experiments coupled to atomic pair distribution function analysis of disordered low-Z materials are presented. Several scientifically and technologically important classes of disordered low-Z materials such as small and large organic molecules, graphitic powders, polymers and l…
An improved and scalable synthesis of the unsubstituted 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene framework facilitates access to the previously unreported parent dipyrrin HCl salt, as well as 4,4-dichloro-4-bora-3a,4a-diaza-s-indacene.