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。
Scanning tunneling microscopy is used to study the edge orientation of graphene fabricated by thermal decomposition of 6H-SiC. The exploration on the atomically resolved structures and the patterns in reciprocal space demonstrates that the armchair direction is always parallel to the basic vector of 6 × 6 reconstructi…
Charge transport within films of several new types of electropolymerized porphyrin and porphyrin-fullerene dyad polymers was studied in order to obtain information on the suitability of these organic semiconductors for applications in solar energy conversion, sensor devices, etc. The films, prepared by electropolymeri…
We report herein the first evidence that an F-actin solution shows shear banding, which is characterized by the spontaneous separation of homogeneous shear flow into two macroscopic domains of different definite shear rates. The constant shear stress observed in the F-actin solution is explained by the banded flow wit…
Corrosion of buried steel pipe is a permanent engineering problem and, albeit the counter measures against degradation, when the corrosion process takes place, the damage has costly impact. In order to study the corrosion behavior of pipelines, it is possible to use actual soil extracts or simulated soil solutions. Th…
PVP capped platinum nano particles (PNP) of 5 nm diameter were prepared and characterized as homogeneous and of spherical nature. At physiological pH range (6.0-8.0), these PNP catalyze the deoxygenation of phenoxazine group containing resazurin (1) by hydrazine. The observed rate constants (k(o)), increase linearly w…
The nonlinear magnetoelectric (ME) transient responses and the frequency-multiplying behavior of a circular-shaped magnetoelectric layered structure are investigated by using a 2D nonlinear mechanical–magnetic coupling constitutive relation. The general analytical expressions for the ME coefficient in T – T and C – T…
Thin carbon nanotube films have great potential for transparent electrodes for solar cells and displays. One advantage for using carbon nanotubes is the potential for solution processing. However, research has not been done to connect solution rheological properties with the corresponding film characteristics. Here we…
Abstract A water‐containing iron(III) complex, [Fe III (SalEen) 2 ]ClO 4 · 0.5H 2 O [ 1 , SalEen = N ‐ethyl‐ N ‐(2‐aminoethyl)salicylaldiminate], and an unsolvated complex, [Fe III (SalEen) 2 ]ClO 4 ( 2) , are synthesized and structurally characterized. Complex 1 crystallizes in a polar orthorhombic space group Fdd 2,…
The limitation of simultaneous measurements of noncommuting observables can be eliminated when the measured particle is maximally entangled with a quantum memory. We present a proposal for testing this quantum-memory-assisted entropic uncertainty relation in a single nitrogen-vacancy (N-V) center in diamond only by lo…
This study examines the restoration of waste plastic polymers based on LDPE, HDPE or PP through dissolution/reprecipitation. Experimental conditions of the recycling process, including type of solvent/non-solvent, original polymer concentration and dissolution temperature were optimized. Results revealed that by using…
Intricate interplay between the periodicity of the lattice structure and that of the cyclotron motion gives rise to a well-known self-similar fractal structure of the energy eigenvalue, known as the Hofstadter butterfly, for an electron moving in lattice under magnetic field. Connected with the $n=0$ Landau level, the…
Abstract A facile and novel strategy was reported on the fabrication of raspberry‐like SiO 2 /polystyrene (SiO 2 /PS) composite particles by emulsion polymerization in the presence of vinyl‐functionalized silica (vinyl‐SiO 2 ) particles, which were prepared via a one‐step sol–gel process using vinyltriethoxysilane as…
Abstract The purpose of this microreview is to highlight developments in dendritic polyoxometalate (DENDRI‐POM) hybrid materials and their catalytic application in oxidation reactions. To the best of our knowledge, there are no reviews dealing with the design and synthesis of DENDRI‐POM hybrids and their use as cataly…
This study investigated the relationship between particle size and toxicity of silica particles (SP) with diameters of 30, 70, and 300 nm, which is essential to the safe design and application of SP. Data obtained from histopathological examinations suggested that SP of these sizes can all induce acute inflammation in…
A simple and fast synthesis method was set up to obtain pure hydrated calcium pyrophosphate (CPP) phases of biological interest. This work focused on a specific phase synthesised at 25 °C and pH 4.5 in a stirred tank reactor. Powder X-ray diffraction, FTIR spectroscopy, scanning electron microscopy and thermogravimetr…
An equivalent circuit for the double-fishnet metamaterial is proposed. All lumped elements are inferred from the interpretation of the electric and magnetic fields as well as the surface currents generated when the structure is excited with a normally incident plane wave. The approach provides a physical meaningful ci…
We performed combined magnetotransport and cyclotron resonance experiments on two-dimensional electron systems confined in the ${\mathrm{Mg}}_{x}{\mathrm{Zn}}_{1\ensuremath{-}x}\mathrm{O}/\mathrm{ZnO}$ heterostructures over a wide range of carrier densities, from 1.9 to $12\ifmmode\times\else\texttimes\fi{}{10}^{11}\t…
The intra- and inter-molecular interactions of salol and polystyrene, as low molecular weight and polymeric glass-forming model systems, are studied by Fourier-transform infrared (FTIR) spectroscopy and Broadband Dielectric Spectroscopy (BDS). By analysing the temperature dependencies of specific IR absorption bands i…
The coherent longitudinal acoustic (LA) phonons in La and Nb codoped polycrystalline BiFeO3 (Bi0.8La0.2Fe0.99Nb0.01O3 (BLFNO)) films are photo-induced and detected by the ultrafast reflectance spectroscopy. The generation mechanism of LA phonons is strongly connected with the ferroelectric polarization and is attribut…
In this work, the effect of the surface modification of polypropylene films via corona treatment was investigated. Polypropylene films were treated with negative and positive corona discharge, at atmospheric pressure, for 5 minutes, at two different temperatures – 25 °C and 90 °C. The changes in the surface free energ…