Materials Literature
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The magnetic penetration depth $\ensuremath{\lambda}$ has been measured in ${\text{MgCNi}}_{3}$ single crystals using both a high-precision tunnel diode oscillator (TDO) technique and Hall probe magnetization (HPM). In striking contrast to previous measurements in powders, $\ensuremath{\delta}\ensuremath{\lambda}(\tex…
Abstract Lieblingsplätze : Nach 3D‐Rekonstruktionen aus elektronentomographischen Daten, die an Au/Ce 0.50 Tb 0.12 Zr 0.38 O 2−x ‐Katalysatoren erhalten wurden, befinden sich Goldnanopartikel (gelb im Bild) vor allem an Stufen und Nanokristallgrenzen. Eine Epitaxiebeziehung zwischen Metall und Träger spielt für die st…
Bulk titanium foams were prepared by emulsion templating during slip casting. The emulsion template was stabilized using partially hydrophobized titanium particles while the continuous phase consisted of a titanium hydride powder suspension. Sintering was performed in inert atmosphere. The use of titanium hydride resu…
Using first principles method we report the oxidation of Al doped Au clusters. This work is divided into two parts: (i) the equilibrium structures and stability of Al doped Au(n-1) clusters (n=2-7,21) and (ii) the interaction of O(2) with stable clusters. The calculations are performed using the plane wave pseudopoten…
Abstract Carbon nanofibers (CNFs) have attracted significant interest because of their excellent mechanical, electrical, and physical properties. Recent advances in chemical functionalization strategies are anticipated to extend their utility in various applications. In this study, noncovalent methods of CNF functiona…
Monodispersed single crystalline alpha-GaOOH rods coated by silk fibroin (SF) have been prepared via a facile biomineralization process in the template of SF peptide. The carbon-coated alpha-Ga(2)O(3) and beta-Ga(2)O(3) rods are obtained by thermal treatment of the alpha-GaOOH rods at 600 and 800 degrees C, respective…
A series of stoichiometric ionically bonded side-chain polymer complexes, constructed from poly(styrenesulfonate) (PSS) and quaternary ammonium-functionalized azo-containing surfactomesogens (SMs) with hexyl and decyl spacers, were prepared under rigorous conditions and thoroughly dried, and their potential thermotrop…
Samples of the solid solution EuRh 2−x Zn x with x ≈ 1 were synthesized by high-frequency melting of the elements in sealed tantalum tubes. They crystallize with the structure of the cubic Laves phase MgCu 2 . The structure of one crystal was refined from single-crystal X-ray diffractometer data: space group Fd 3̅ m,…
Abstract Chitosan scaffolds have gained much attention in tissue engineering. However, brittleness and low biodegradability limit scaffolds application, especially in use as guided tissue regeneration membranes (GTRm) in surgical operations. The first objective of this work is to improve the brittleness of the chitosa…
Silver nanoparticles (NPs) stored in pore-arrays (pa) SU-8 photoresist layer were utilized as an antibacterial nanocomposition against E. coli bacteria. The pa-SU-8 matrix was fabricated by an optical interference lithography method resulting in small pores with a diameter of ∼50 nm and a depth of ∼100 nm. The Ag NPs…
Film stress and microstructure evolution during the growth of a Ni bicrystal film are investigated by molecular dynamics simulations. The nominal surface orientation of the growing film was (111) and the grain boundaries are $\ensuremath{\Sigma}79$ symmetrical tilt grain boundaries. The growth mode is layer by layer;…
Abstract The focus of this study was to synthesize the inherently conductive polymer polyaniline using an optimized process to prepare polyaniline/silicon dioxide (PANI/SiO 2 ) composites by in situ polymerization and ex situ solution mixing. PANI and PANI/SiO 2 composite films were prepared by drop‐by‐drop and spin c…
We report comprehensive resistivity measurements of single-crystalline samples of the $\text{Ba}{({\text{Fe}}_{1\ensuremath{-}x}{\text{Co}}_{x})}_{2}{\text{As}}_{2}$ high-${T}_{c}$ superconductor under hydrostatic pressure up to 2.75 GPa and over a broad concentration range, $0\ensuremath{\le}x\ensuremath{\le}0.099$.…
A model for the radiationless deactivation of porphycenes has been proposed based on the theoretical prediction that the lowest electronic state of one of the cis tautomeric forms corresponds to an open-shell nonplanar structure. The radiationless channel is provided by crossing of the potential energy surfaces of the…
Stimuli-responsive colloidal microcapsules have been fabricated at the oil-water interface using molecular recognition between functionalized gold nanoparticles. Water-soluble beta-cyclodextrin-capped gold nanoparticles and organo-soluble adamantyl-functionalized gold nanoparticles are self-assembled at the water-tolu…
Abstract This book presents a less mathematical approach to X-ray crystal structure determination than is given in some detailed texts and concentrates on practical aspects. The book provides the necessary conceptual framework for understanding and applying the techniques described, but also gives practical advice on…
Abstract Reactive crystallization of calcium oxalate was investigated in the presence of amino acids, proteins and carboxylic acids at different pH and temperatures. Average particle size, filtration rates of calcium oxalate crystals obtained in the absence and presence of additives were determined. The influence of p…
Abstract Conductive network formation and its dynamic process for multiwalled carbon nanotubes (MWNTs) and carboxyl‐tethered MWNT (MWNT‐COOH) filled poly(vinylidene fluoride)(PVDF) systems were investigated. Based on real‐time tracing the variation of electrical resistivity of systems with isothermal treatment time, t…
A theoretical study of molybdenum and caesium solution in uranium dioxide is carried out. Calculations are performed using the density functional theory with the projector-augmented-wave method as implemented in the Vienna ab initio simulation package (VASP). Correlation effects are taken into account within the DFT+U…
We present a process for synthesizing ionically self-assembled polyelectrolyte-complex-based carbon nanotube fibers using a simple noncovalent stabilization of carbon nanotube aqueous dispersions where no surface functionalizations of the nanotubes were necessary. The polyelectrolyte-carbon nanotube composite fibers h…