Materials Literature
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Polycrystalline samples and single crystals of four members of the new complex boride series Ti(3-x)Ru(5-y)Ir(y)B(2+x) (0 ≤ x ≤ 1 and 1 < y < 3) were synthesized by arc-melting the elements in a water-cooled copper crucible under an argon atmosphere. The new silvery phases were structurally characterized by powder and…
Complexation of copper(II) with a series of heterodonor chelating Schiff bases (LL) of salicylic acid hydrazide and aliphatic or cycloaliphatic ketones affords soluble one-dimensional (1D) metallopolymers containing Schiff bases as bridging ligands. Single-crystal X-ray diffraction results reveal nanometer-sized metal…
The microstructure and elemental distribution of the gadolinium-doped ceria (GDC) thin film electrolyte, Ni-GDC cermet anode, and the interface between them were comprehensively characterized by high-resolution transmission electron microscopy (HR-TEM) and energy-dispersive X-ray spectroscopy (EDX) operated in scannin…
Infrared spectra and nitrate and nitrite formation rate data free of transport artifacts provide rigorous evidence for the identity of the adsorbed species and the elementary steps required for adsorption of NO, NO 2, and CO 2 on BaO/Al 2 O 3 with and without Pt clusters that act as oxidation catalysts. NO/NO 2 adsorp…
Hydrogen bonding and proton transfer in the solid state are studied on the crystals of isostructural anhydrous potassium and rubidium complex chloranilates by variable-temperature single crystal X-ray diffraction, solid state (1)H NMR and IR spectroscopies, and periodic DFT calculations of equilibrium geometries, prot…
We studied the Ir(2)(dimen)(4)(2+) complex with ultrafast transient absorption spectroscopy and density functional theory and concluded that it possesses two singlet ground state isomers in room temperature solution. The molecule can adopt either a paddle wheel or a propeller conformation in solution, where the paddle…
A 24-pair Si-rich SiNx/SiOx-based distributed Bragg reflector (DBR) architecture, in situ doped with Si nanocrystals (Si-ncs), is studied to show self-photoluminescence (PL) with narrow-linewidth green-color emission pattern. By cascaded depositing, the broadband luminescent SiNx/SiOx pairs with SiNx and SiOx layer th…
Molecular dynamics (MD) simulations were carried out to study the self-assembly of graphene and metallic particle. The metallic particle can help the graphene overcome the energy barrier, which leads to rapid self-scrolling of flat graphene and the formation of stable core−shelled composite nanostructure. The van der…
The antimicrobial property of stabilized silver nanoparticles (AgNPs) with phospholipid membrane was investigated on both Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacterial strains. The influence of phospholipid concentrations on antibacterial kinetics actions of AgNPs was studied wit…
Abstract This article presents the foaming behaviors of wood fiber/high density polyethylene (HDPE) composites with small amounts of nanoclay. Melt compounding is used to prepare two types of clay‐filled wood fiber composites: intercalated and exfoliated clay composites. Their respective morphologies are determined us…
To elucidate the effect of metals supported on zeolite as ozone-assisted catalysts on toluene removal, the decomposition of 8.2 μmol/L toluene was carried out by the ozone-assisted catalytic oxidation on Fe, Ni, Ag, Co and Mn supported on one type of zeolite (ZSM-5) and unsupported ZSM-5. It was found that the perform…
Mn${}_{3}$O${}_{4}$ is one of the archetypal examples of tetragonally distorted spinels. In this paper we reinvestigate its complex magnetic ordering process by using high-resolution magnetic and calorimetric measurements. The first-order transition to the ground state is found to exhibit a latent heat of $\ensuremath…
In this study, we developed a continuous process using extruders in a pilot plant for recycling silane cross-linked polyethylene (silane-XLPE) via chemical reaction in supercritical alcohol. As a first step, an autoclave was employed to reveal the effects of temperature and pressure on the reaction that selectively de…
We investigated the metastable phase diagram of an ionic salt aqueous solution, LiCl:6D₂O, at high pressure and low temperature by neutron diffraction measurements and computer simulations. We show that the presence of salt triggers a stepwise transformation, under annealing at high pressure, to a new very high-densit…
The oxidative decarboxylation of levulinic acid (LA) by silver(I)/persulfate [Ag(I)/S₂O₈²⁻] has been investigated in this paper. The effects of buffer solution, initial pH value, time and temperature and dosages of Ag(I)/S₂O₈²⁻ on the decarboxylation of LA were examined in batch experiments and a reaction scheme was p…
We report on measurements of the diffraction efficiency of 200-nm-period freestanding blazed transmission gratings for wavelengths in the 0.96 to 19.4 nm range. These critical-angle transmission (CAT) gratings achieve highly efficient blazing over a broad band via total external reflection off the sidewalls of smooth,…
Abstract Unsaturated long‐chain carboxylic acid amides like Erucamide are very efficient as slipping agents in polyolefin films and other polymers. A problem is the uncontrolled migration of this additive. The main goal of the present project was therefore the study and understanding of Erucamide diffusion through the…
Abstract A novel chiral azobenzene polyurethane (CAPU) was prepared from chromophore, chiral reagent L (−)‐tartaric acid and toluene diisocyanate (TDI). The chemical structure and the thermal property were characterized by UV‐Vis spectrum, FT‐IR, 1 H NMR, circular dichroism (CD) spectrum, differential scanning calorim…
Nano-fibrillated cellulose was produced from flax and wheat straw cellulose pulps by high pressure disintegration. The reinforcing potential of both disintegrated nano-celluloses in a polyvinyl-alcohol matrix was evaluated. Disintegration of wheat straw was significantly more time and energy consuming. Disintegration…
Stapelhilfe: Coronene ordnen sich im Inneren einwandiger Kohlenstoff-Nanoröhren (SWCNTs) zu koaxialen 1D-Strukturen an (siehe Bild). Die resultierenden Coronensäulen haben charakteristische Fluoreszenzspektren, die sich signifikant von denen isolierter Coronen-Moleküle und dreidimensionaler Kristalle unterscheiden.