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。
Using first-principles calculation, we have investigated the structural and magnetic properties of ${\mathrm{Mn}}_{x}{\mathrm{Ga}}_{1\ensuremath{-}x}$ alloys with Mn content ($x$) changing from 0.5 to 0.75 in step of $x=0.125$. The ${\mathrm{Mn}}_{x}{\mathrm{Ga}}_{1\ensuremath{-}x}$ systems crystallize in tetragonal s…
The high temperature oxidation behavior of Mg–Sr hypoeutectic alloys was investigated. The oxide layer was characterized after isothermal heating experiments that were conducted at 500 °C in dry airflow for 12 h. It was seen that a non‐uniform oxide scale formed on hypoeutectic Mg–Sr alloys with a two‐phase structure…
In this review, we discuss our recent theoretical work on the nonlinear optical response of graphene and its sister structure in terahertz (THz) and near-infrared frequency regime. Due to Dirac-like linear energy-momentum dispersion, the third-order nonlinear current in graphene is much stronger than that in conventio…
Abstract A novel method for the preparation of bamboo fibers (BF) has been investigated that includes crushing, rolling, and other combing techniques with 1,4-butanediol as a dispersant. The fibers were treated by oxygen plasma to improve their interfacial adhesion to unsaturated polyester (UPE) resins. Composites wer…
Abstract This review article summarizes the progress of research in the field of polymer brush/metal nanoparticle hybrid materials. We will discuss the mutual influence of polymer brush matrix and particles. Self-assembly of particles within polymer brushes, and ways to control the loading and location of nanoparticle…
Abstract Efficient and generic enantioselective discrimination of various chiral alcohols is achieved by using surface‐enhanced Raman scattering (SERS) spectroscopy through charge–transfer (CT) contributions. The relative intensities of the peaks in the SERS spectra of a chiral selector are strongly dependent on the c…
Titanium dioxide (TiO2) nanorod arrays grown directly on Ti metal foil were prepared by a facile one-step hydrothermal method, in which the Ti foil serves as both substrate and precursor. The nanorods are tetragonal rutile single crystal with growth orientation along the [001] direction. The electrochemical properties…
Surface plasmon resonances in metal nanoparticles are an emerging technology platform for nano-optics applications from sensing to solar energy conversion. The electromagnetic near field associated with these resonances arises from modes determined by the shape, size, and composition of the metal nanoparticle. When co…
Homosubstituted amido-functionalized polyoctahedral oligomeric silsesquioxanes (POSS) have been synthesized by using acyl chlorides in high yields (ca. 95%). The method proved to be superior over "conventional" syntheses applying carboxylic acids or acid anhydrides, which are much less efficient (ca. 60% yield). A pal…
Particles derived from milling three-layer particleboards, with sizes from 0.5 to 3 mm, were used for making composites with polypropylene by an injection moulding method. Maleated polypropylene was used as a coupling agent. The objective of this study was to evaluate the mechanical and physical properties of the comp…
A series of nonplatinic ceria-based oxides supported catalysts LaCoO 3 /K 2 CO 3 /S (S=CeO 2, Ce 0.75 Zr 0.25 O 2 or 5%Y/Ce 0.75 Zr 0.25 O 2 ) were prepared by successive impregnation and employed for lean-burn NOx trapping. It is found that the doping of Zr or YZr into CeO 2 facilitates the formation of CeZrO binary…
This combined experimental and theoretical study aims at understanding why surface hydroxyl groups may enhance catalytic reactivity of MgO surfaces in basic catalysis, whereas hydroxyls are weakly deprotonating groups. We investigated that reactivity enhancement in the catalytic conversion of 2-methyl-but-3-yn-2-ol (M…
In the present work, the chemical co-precipitation method has successfully been employed in the preparation of GdFeO3 nanoparticles. Prepared samples have been sintered at different temperatures in order to investigate their structural changes using XRD, SEM, and FTIR. P-E hysteresis loops have been measured at variou…
A general theory of the long time, low temperature dynamics of glass-forming fluids remains elusive despite the almost 20 years since the famous pronouncement by the Nobel Laureate P. W. Anderson, "The deepest and most interesting unsolved problem in solid state theory is probably the theory of the nature of glass and…
Two amidine-substituted spiropyran derivatives have been characterized with respect to the DNA-binding properties over a broad pH interval. The two derivatives differ in the number of positive charges. By varying the pH, the protonation state of the derivatives is also changed, allowing for additional variations in th…
Magnesium (Mg) biomaterials are a new generation of biodegradable materials and have promising potential for orthopedic applications. After implantation in bone tissues, these materials will directly interact with extracellular matrix (ECM) biomolecules and bone cells. Type I collagen, the major component of bone ECM,…
We have investigated changes in the cation-specific conformational behavior of poly(sodium styrenesulfonate) (PSS) brushes as the solvent changes from water to methanol using a quartz crystal microbalance with dissipation (QCM-D). A solvation to desolvation transition of the grafted chains accompanied by swelling to t…
We report the growth mechanism of metal oxide nanostructures synthesized by electron beam evaporation. The condensed electron beam can easily decompose metal oxide sources that have a high melting point, thereby creating a self-catalytic metal nanodot for the vapor-liquid-solid process. The metal oxide nanostructures…
This paper reviews current research into the behavior of nanostructures under extreme conditions such as high tem- peratures, irradiation, and deformation. It describes methods for enhancing the stability of nanostructures under these condi- tions and identifies aspects that have not yet been given suffi- cient attent…
The directed self-assembly (DSA) of block copolymers (BCPs) is expected to complement conventional optical lithography due to its excellent pattern resolution and cost-effectiveness. Recent studies have shown that BCPs with a large Flory-Huggins interaction parameter (χ) are critical for a reduction of the thermodynam…