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。
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…
An investigation of Ca substitution in the multiferroic material BiFeO 3 shows that a wide range of perovskites Bi x Ca 1− x FeO 3 (0.4 ≤ x ≤ 1.0) can be prepared by sintering in air at 810−960 °C. 0.4 ≤ x < 0.8 samples are cubic Pm 3̅ m, whereas x = 0.8 and 0.9 show a coexistence of the cubic and the rhombohedral R 3…
Utilization of single-walled carbon nanotubes (SWNTs) in high-end applications hinges on separating metallic (met-) from semiconducting (sem-) SWNTs. Surfactant amines, like octadecylamine (ODA) have proven instrumental for the selective extraction of sem-SWNTs from tetrahydrofuran (THF) nanotube suspensions. The chem…
Different polyaniline (PANI) micro/mesostructures have been synthesized by one-pot polymerization of aniline using hydrogen peroxide (H 2 O 2 ) as oxidant and Fe 3+ as catalyst under hydrothermal conditions. Well-defined PANI hollow spheres with relatively uniform sizes and controllable shell thickness can be prepared…
Through the use of Bi as a co-activator and Si as a substituting element for the host lattice, red emitting , , ( x = 0, 0.005, 0.01, 0.05, 0.10, 0.15 and 0.20) and , ( y = 0.005, 0.01, 0.02, 0.03, 0.04 and 0.05) phosphors were synthesized by the conventional solid state reaction method, respectively. The photo-lumine…
Nanoconfinement has been found to have significant effect on the glass transition behavior of low molecular weight and polymeric glass formers. Here, we investigate the influence of nanoconfinement on the cure kinetics and glass transition temperature of a bisphenol M dicyanate ester/polycyanurate material as a functi…
Fabrication of hierarchical porous thin films with controlled pore dimension and shape is a current challenge in materials science. In this work, bimodal hierarchical hybrid organic−inorganic thin films with pores in the meso and macro range have been fabricated. The first order of porosity is obtained through a self-…
A method was developed to measure the longitudinal thermal conductivity (TC) of an individual fibre using a T type probe. In the T type probe, a hot wire was supplied with a constant direct current, whose ends were connected to heat sinks to maintain the initial temperature. The test fibre was attached to the centre p…
Abstract This article presents an overview of the preparation and characterization of poly(vinyl chloride)/montmorillonite (PVC/MMT) nanocomposites. Different methods of PVC/MMT nanocomposite preparation are discussed. The incorporation of MMT into the PVC matrix results in an increase of thermal stability and induces…