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。
Research of a monolayer and a bulk MoS2 is reported. The room temperature Raman spectra of the natural MoS2 crystals for the both resonant (632.8 nm) and the non-resonant (532 nm) excitation are presented. The apparent dierences observed in the spectra from the bulk and the one monolayer MoS2 are discussed. In particu…
Abstract Conductive polymers are widely studied as microwave absorbing materials due to their light weight, corrosion resistance, good and flexible processibility and variability of conductivity. Among them, polyaniline (PANI) microwave absorbing materials have been studied most extensively because of their easier and…
We have investigated the structure, magnetic and dielectric properties of PVDF-La0.7Sr0.3MnO3 polymer nanocomposite thick film fabricated by dip coating technique along with the magnetodielectric effect. The structure and dielectric properties show the enhanced β phase in the composite compared to the PVDF film. The c…
Alloying and grain refinement have been conducted to reduce the lattice thermal conductivity of FeVSb-based half-Heusler compounds. And the effects of point defect and boundary on phonon scattering are analyzed using the Callaway model. Point defect scattering and boundary scattering, respectively, cut out the high-fr…
A simple and "green" strategy has been reported for the first time to fabricate upconversion nanoparticles (UCNPs) by utilizing nucleotides as bio-templates. The influence of the functionalities present on the nucleotide on the production of nanoparticles was investigated in detail. Through the effects of nucleotides,…
Li doped NiO nanowires with a diameter smaller than 100 nm were synthesized by electrospinning. The nanowires exhibit p-type characteristics with improved electrical conductivity through Li doping. Moreover, an enhanced gating effect was obtained in Li-NiO-nanowire-based field effect transistors (FETs), which hold gre…
Synthetic polyacrylonitrile (PAN)/agar composite nanofibers were fabricated by introducing agar during the electrospinning process, and it was found that the nanofibers could be used for efficient, controlled drug release. Hydrophilic drugs such as ampicillin (AMC) were successfully encapsulated inside the agar, allow…
We predict that electron-doped silicene is a good two-dimensional electron-phonon superconductor under biaxial tensile strain by first-principles calculations within rigid band approximation.Superconductivity transition temperature of electron-doped silicene can be increased to be above 10 K by 5% tensile strain.Band…
A polymeric tube-like Er48 complex has been synthesized and structurally characterized, in which two types of anions, i.e. Cl(-) and NO3(-), template the formation of Er18 wheels and Er12 rings through hydrogen bonding, respectively.
1.5-μm-thick (Pb0.91La0.09)(Zr0.65Ti0.35)O3 (PLZT) relaxor ferroelectric (RFE) films doped by Mn from 0 to 5 mol. % were deposited on LaNiO3/Si(100) substrates via a sol-gel method. The microstructure, dielectric properties, and energy-storage performance of PLZT thin films were investigated as a function of Mn conten…
Fluorescent semiconductor quantum dots (QDs) have attracted tremendous attention over the last decade. The superior optical properties of QDs over conventional organic dyes make them attractive labels for a wide variety of biomedical applications, whereas their potential toxicity and instability in biological environm…
A facile and template free greener route is used to fabricate natural polysaccharide based biocompatible mesh-like Fe2O3/C nanocomposites for supercapacitor application. Thermal, structural and morphological properties of iron oxide–carbon composites prepared at different annealing temperature have been analyzed and t…
We present an evolutionary algorithm which predicts stable atomic structures and phase diagrams by searching the energy landscape of empirical and ab initio Hamiltonians. Composition and geometrical degrees of freedom may be varied simultaneously. We show that this method utilizes information from favorable local stru…
Ultra-high-resolution neutron diffraction studies of BiFe(0.8)Co(0.2)O3 show a transition from a cycloidal space modulated spin structure at T = 10 K to a collinear G-type antiferromagnetic structure at T = 120 K. The model of antiparallel directions of Fe(3+) and Co(3+) magnetic moments at the shared Wyckoff position…
The density functional theory (DFT) method is a widely used tool that can guide targeted searches exploring numerous possible chemistries according to any property of interest. However, acquiring accurate DFT results from a large chemical search space is still a major challenge for computationalists because it require…
This paper proposes a power system concept that integrates photovoltaic (PV) and thermoelectric (TE) technologies to harvest solar energy from a wide spectral range. By introduction of the ‘spectrum beam splitting’ technique, short wavelength solar radiation is converted directly into electricity in the PV cells, whil…
Summary In this work, the chemical oxidative synthesis of polypyrrole was monitored through on‐line conductivimetry. A group of reactions was carried out at two different temperatures (5 °C and 20 °C) with varying concentrations of pyrrole and oxidant agent (FeCl 3 ) to investigate the effect on conversion and conduct…
A hard SiC-B4C reinforced composite coating was fabricated by laser alloying of SiC-B4C+Al-Sn-Mo-Y2O3 mixed powders on a Ti-3Al-2V alloy. Al-Sn-Mo mixed powders were first used in the laser alloying technique to improve the wear resistance of titanium alloys. Proper selection of the laser alloying process parameters a…
Chemical Looping Combustion is a promising technology for clean power generation with integrated CO2 capture. In this process the oxygen required for combustion is provided by a metal oxide. This work deals with the development of an experimental procedure to study performances of an oxygen carrier during oxidation/re…
In this work, zeolite A was obtained using alkaline fusion followed by a hydrothermal treatment of glass powder residue derived from the manufacturing of glass. The following parameters were evaluated: leaching of the stock material (silica source), mineralizing agent, alumina source, and the alkaline fusion and cryst…