Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
A thin film comprising parallel tilted nanorods was deposited by directing silver vapor obliquely towards a plane substrate. The reflection and transmission coefficients of the thin film were measured at three wavelengths in the visible regime for normal-illumination conditions, using ellipsometry and walk-off interfe…
Abstract The thermal degradation of poly(lactic acid) (PLA) biopolymer was studied as used by the thermogravimetry analyzer in a nitrogen atmosphere in the temperature range of 100–500°C. The reaction was found under these experimental conditions to be of first order with an activation energy of 94.0 and 105.3 kJ/mole…
Abstract In this work, nanocomposite adhesives obtained using an organically modified montmorillonite (OMM) in a polyurethane matrix were studied. The basal distance of OMM before and after mixing with the polyol and after curing was characterized by X‐Ray diffraction. The viscosity of polyols‐OMM systems was studied…
The catalytic activity of Nitrogen containing Carbon Nanotubes (NCNT), grown from acetonitrile or pyridine over supported Fe-, Co or Ni catalysts at various conditions, were tested for the base catalyzed Knoevenagel condensation of benzaldehyde and ethylcyanoacetate. All NCNT displayed activity for the reaction with i…
The quasi-two-dimensional electron gases formed at the interface between insulators such as SrTiO3/LaAlO3 are predicted to arise from an interfacial electronic reconstruction, but the extent to which oxygen vacancies within the substrate contribute to the conduction remains unclear. We show that delta-doping the inter…
This study examines the structural properties of binary and tertiary mixtures made of the cold-setting biopolymers agarose and gelatin and a lipid phase with solid or liquid-like viscoelasticity. The working protocol included the techniques of small-deformation dynamic oscillation on shear, modulated differential scan…
In the present paper the effects of explosion hardening on the microstructure and the mechanical properties as well as the lifetime of Hadfield steel (high manganese steel) crossing have been studied. The optimum explosion hardening technology of the high manganese steel crossing was proposed. That is twice explosion…
X-ray absorption near-edge spectroscopy (XANES) and photoelectron spectroscopy (PES) with synchrotron radiation have been applied to investigate the structure and chemical states of nitrogen atoms in ZnO:N films with different annealing temperatures. The high-resolution XANES and PES spectra of N 1s reveal the chemica…
Exploiting effective sorbents for antibiotic adsorption is highly desirable for the elimination of ecological risks from antibiotic contamination. In this study, MgAl-CO(3)(2-) hydrotalcites with different Mg/Al molar ratios were prepared and tetracycline (TC) adsorption to the hydrotalcites and calcined hydrotalcites…
We report on the optical and magnetic properties of Mn-doped CdS nanocrystals coated with a ZnS shell layer (CdS:Mn/ZnS core-shell nanocrystals) by magnetic circular dichroism (MCD) spectroscopy. The magnetic field and temperature dependences of the MCD spectrum show paramagnetic behavior of the CdS:Mn/ZnS core-shell…
The synthesis and the characterization of original copolymers based on vinylidene cyanide (VCN) and 1 H,1 H,2 H,2 H -perfluorodecyl vinyl ether (FAVE8) are presented. While VCN is known to be very reactive in radical homopolymerization in contrast to the vinyl ether which does not homopolymerize, the radical copolymer…
Polycrystalline CuCr1−xNixO2 is synthesized and its multiferrocity is characterized in order to enhance the ferromagnetism and ferroelectricity of CuCrO2-based multiferroics. At the optimized doping level x=0.05, we observe not only an enhancement of one order of magnitude in magnetization but also a remarkable increa…
Abstract For any construction activity in expansive soils, determination of swelling pressure/heave is an essential step. Though many attempts have been made to develop laboratory procedures by using the laboratory one-dimensional oedometer to determine swelling pressure of expansive soils, they are reported to yield…
Linear response time-dependent hybrid density functional theory has been applied for the first time to describe optical transitions characteristic of Co 2+ - and Mn 2+ -doped ZnO quantum dots (QDs) with sizes up to 300 atoms (∼1.8 nm diam) and to investigate QD size effects on the absorption spectra. Particular attent…
Using a laser monitoring observation technique, the solubilities of butanedioic acid in water, ethanol, 1-propanol, 2-propanol, acetone, and ethanoic acid were determined by the synthetic method at temperatures between 283 K and 333 K. A laser technique is used to determine the disappearance of solute particles. The e…
Abstract In this study, the preparation of organically modified montmorillonite/poly(acrylonitrile–butadiene–styrene) (ABS) nanocomposites was studied by melt blending in a twin‐screw extruder. The composite material was subjected to a series of five extrusion cycles, and the effect of reprocessing on the material's s…
Abstract The mechanical and the crystallization behavior of melt‐mixed cocontinuous blends of polyamide6 (PA6) and acrylonitrile butadiene styrene were studied in presence of multiwall carbon nanotubes (MWNT). Young's modulus was observed to be significantly improved with increasing concentration of MWNT, while only m…
The resistive switching characteristics of Pr0.7Ca0.3MnO3 (PCMO) thin films deposited on LaNiO3 (LNO)-electrodized Si substrate were investigated. Highly (100)-textured PCMO films were grown on the (100)-oriented LNO electrode. They exhibited reversible and steady bistable resistance switching behavior. The resistive…
This paper discusses the experimental results of the water−gas shift reaction over supported nickel catalysts in comparison to thermodynamic equilibrium composition at the same reaction conditions. The effects of different supports on the performance of H 2 production over nickel-supported catalysts are also evaluated…
Fully interactive: Overlap between extended unoccupied molecular orbitals leads to the high photoconductivity of interactive radical dimers. Sandwich-type cells (see picture; ITO = indium tin oxide) comprising highly oriented thin films of a disjoint diradical, 4,4'-bis(1,2,3,5-dithiadiazolyl) (BDTDA) exhibit a photoc…