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。
The formation of silica from a tetraalkoxysilane in a sol-gel process usually requires a highly polar, typically aqueous, medium that aids in the hydrolysis of the silane and leads to electrostatic stabilization of the growing silica particles. Formation of such silica particles in a hydrophobic medium is much more ch…
Preliminary study of the utilization of the fly ash from coal-fired power plant for immobilizing simulated radioactive waste has been done. The objective of this research was to study characteristics of pozzolanic material of the fly ash from coal-fired power plant as substitute of compactor material for immobilizing…
The use of polysaccharides in the pharmaceutical, biomedical, and cosmetic elds has ubiquitous appreciation of those ingredients, as they are derived from marine organisms, e.g., chitin and its derivatives. While considering many biomedically and cosmetically acceptable chitin/chitosan compounds, one nds their morph…
Abstract To investigate the influence of atmospheric plasma treatment on aramid fiber wetting and adhesion behavior, an air dielectric barrier discharge (DBD) was applied to the Armos aramid fiber surface at different discharge power densities. Dynamic contact angle analysis indicated that the total surface free energ…
Based on the quantum-junction transmission/Green's function formalism and the dynamical matrix/DFT, we find the phonon wave features result in bimodal resonant transmission in the interflake conductance of H or O edge-passivated graphene. The low-frequency resonant transport mode is due to the weak interaction between…
How to prepare functional nanocomposites in a simple, facile and efficient procedure has attracted tremendous effort in the past decades. In this investigation, Ag nanoparticles (NPs)/multi-walled carbon nanotubes (MWCNTs)/poly(vinylidene fluoride) (PVDF) composites were fabricated by blending PVDF with MWCNTs, follow…
Environment-friendly or "green" composites (GCs) made from micro-fibril bamboo fiber (BF) and biodegradable poly-lactic acid (PLA) resin were fabricated using a hot-pressing methods. The effect of BF content on the flexural properties and impact energy of the GCs was investigated. The results show that the flexural pr…
We present a study of the structure and local dynamics of dispersed silica nanoparticles in the liquid crystal 4′-pentyl-4-biphenylcarbonitrile (5CB). Electron microscopy and X-ray scattering data demonstrate that the nanoparticles form agglomerates with a fractal structure. Investigation of the local dynamics of the…
Abstract A novel process of multi‐annealing was proposed for forming well‐arrayed ZnO nanostructures on as‐deposited ZnO thin films that were prepared on quartz glass using a radio frequency (rf) magnetron sputtering at low temperature. It was found that the formation and morphology of ZnO nanostructures were strongly…
The synthesis of ultrafine gold nanoparticles in presence of maltose-modified hyperbranched poly(ethyleneimines) (PEI) is described. The polymer acted as both a reducing and stabilising agent in the particle formation process. The nanoparticles were characterized by means of dynamic light scattering (DLS), transmissio…
Skin is the largest organ of the body and comprises a surface area that protects the internal parts of the body by acting as an effective barrier against the detrimental effects of environmental and xenobiotic agents. Among them, solar ultra violet (UV) radiation is recognized as a major environmental contaminant and…
Abstract Graphene growth on SiC using propane‐hydrogen CVD has been recently demonstrated. In contrast to the annealing method, in‐plane rotational disorder of graphene can be observed on SiC(0001). In this contribution, we study the effects of growth temperature on the interface between graphene and SiC. We show that…
The traditional approach to unevenness characterization of yarn is based on the CV (i.e. coefficient of variation) of mass between defined portions of yarn measured with the USTER evenness tester. In fact, yarn with the same parameters has different evenness in fabric, and the evenness of yarn in fabric is different f…
Electrospinning is one of the simple technical methods for the production of polymer nanoparticles and nanofibers. Various polymers have been successfully electrospun into ultrafine particles and fibers in recent years mostly in solvent solution and some in melt form. In this work, near- and supercritical CO2 were use…
Quantum mechanical calculations of single crystal phosphorus pentoxide \documentclass[12pt]{minimal}\begin{document}$(\text{P}_{2}\text{O}_{5})$\end{document}(P2O5) have been conducted using the plane-wave ultrasoft pseudopotential technique based on the density functional theory (DFT), in the generalized gradient app…
The structural, optical and electrical properties of the c-plane ZnO epitaxial films grown by pulsed laser deposition on a Si(111) substrate buffered with a thin layer of γ-Al2O3 were investigated by X-ray diffraction, transmission electron microscopy, photoluminescence (PL) and Hall measurements. Detailed structural…
[Ni(1-x)Cu(x)(tmdt)(2)] (tmdt = trimethylenetetrathiafulvalenedithiolate) was prepared for realizing molecular Kondo systems. Magnetic moments (S = (1)/(2)) are considered to exist at the central {CuS(4)} parts of Cu(tmdt)(2) molecules. The χT-versus-T curve of the system with x ≈ 0.15 showed a broad peak at ~10 K. Th…
The electron tomography technique applied in a quantitative way allowed us to characterize a heterogeneous catalyst made of Pd nanoparticles deposited on a δ-Al(2)O(3) lamellar support. In the first step, high resolution tomographic experiments carried out on several typical areas of support have confirmed the hypothe…
The hydration of a-pinene has been studied in the presence of TCA/Y-Zeolite catalyse. The catalyst was prepared by impregnating trichloroacetic acid (TCA) on support of Y-Zeolite. The TCA/Y-Zeolite catalyst converted a-pinene into hydrocarbons, while the TCA/Y-Zeolite catalyst was active and selective for producing al…
The oxidation of 1,5-dimethyl-3-(2'-pyridyl)-6-thiooxotetrazane (SvdH(3) py) by benzoquinone leads to a 1:1 adduct of 1,5-dimethyl-3-(2'-pyridyl)-6-thiooxoverdazyl radical (Svdpy) with hydroquinone (hq). The single-crystal X-ray diffraction of this adduct at room temperature (RT) shows that the radicals exhibit a slig…