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 use of both azide and triethanolamine, with or without the presence of carboxylate groups, has provided new Mn(17), Mn(18) and {Mn(62)}(n) complexes with aesthetically-pleasing cage, layered, and linked-chain-type structures; two are also new single-molecule magnets.
The temperature-dependent photoluminescences of Y(2)O(3) : Eu (6% Eu), Y(2)O(3) : Tb (4% Tb) and Y(2)O(3) : Tm (1% Tm) were investigated for high-temperature phosphor thermometry. Two different phases, the monoclinic phase and cubic phase, were considered because the fluorescence spectra vary with the phase. To employ…
The structural and magnetic phase transitions have been studied on NdFeAsO single crystals by neutron and x-ray diffraction complemented by resistivity and specific-heat measurements. Two low-temperature phase transitions have been observed in addition to the tetragonal-to-orthorhombic transition at ${T}_{S}\ensuremat…
This study presents spectroscopic and electrochemical evidence that verifies proton transport in the temperature regime 300−450 °C in yttria-stabilized zirconia (YSZ) thin film membranes fabricated by atomic layer deposition (ALD). High-resolution X-ray photoelectron spectrometry (XPS) of O1s showed that the OH peak w…
Metal cutting is one of the most common metal shaping processes. Specified geometrical and surface properties are obtained by break-up of the material removed by the cutting edge into a chip. The chip formation is associated with a large strain, high strain rate and a locally high temperature due to adiabatic heating…
Abstract Poly(butylene succinate) (PBSu)/fumed silica nanocomposites were prepared in situ by condensation polymerization. TEM micrographs verified that the dispersion of the nanoparticles was homogeneous in the PBSu matrix, while some small agglomerates were also formed at a higher SiO 2 content. 13 C NMR spectra aff…
Industrial application of titanium dioxide nanoparticles (TiO(2) -NPs) as an additive in pharmaceutical and cosmetic products is increasing. However, the knowledge about the toxicity of this material is still incomplete and data concerning health and environmental safety and results of recent studies on TiO(2) nanotox…
This paper focuses on current trends in the flame retardancy of epoxy-based thermosets. This review examines the incorporation of additives in these polymers, including synergism effects. Reactive flame-retardants-which are incorporated in the polymer backbone-are reported and the use of fire-retardant epoxy coatings…
A thorough analysis of the melting behavior of poly(ethylene terephthalate) (PET) is detailed in this contribution. Isothermal crystallization at 190 °C followed by cooling to room temperature provides a three-phase structure composed of a mobile amorphous, a crystalline, and a rigid amorphous fraction. A close connec…
We use first-principles density functional theory based calculations to determine the stability and properties of silicene, a graphene-like structure made from silicon, and explore the possibilities of modifying its structure and properties through incorporation of transition metal ions (M: Ti, Nb, Ta, Cr, Mo and W) i…
We perform a first-principles calculation to investigate the effects of He in an Fe Σ5(310)/[001] grain boundary (GB) with the SIESTA code, for which the reliability of the pseudopotential and the basis set are systematically tested. We calculate the formation and segregation energies for different substitutional and…
A method for performing molecular dynamics simulation in the grand canonical ensemble is developed. The molecular dynamics, with coupling to an external bath, simulation method of [Berendsen et al., J. Chem. Phys. 81, 3684 (1984)] is extended for this purpose. Here the physical system of interest consists of real indi…
As stagnant water contacts copper pipe and lead solder (simulated soldered joints), a corrosion cell is formed between the metals in solder (Pb, Sn) and the copper. If the resulting galvanic current exceeds about 2 μA/cm(2), a highly corrosive microenvironment can form at the solder surface, with pH < 2.5 and chloride…
A series of doxorubicin-loaded polymer-caged nanobins (PCN(DXR)) were evaluated in vivo in a murine MDA-MB-231 xenograft model of triple-negative breast cancer. The cross-linked polymer cage in PCN(DXR) offers protection for the drug payload while serving as a pH-responsive trigger that enhances drug release in the ac…
We have previously shown that the hyperthermophilic archaeon, Sulfolobus solfataricus, catabolizes d-glucose and d-galactose to pyruvate and glyceraldehyde via a non-phosphorylative version of the Entner-Doudoroff pathway. At each step, one enzyme is active with both C6 epimers, leading to a metabolically promiscuous…
BACKGROUND: Diatoms represent the predominant group of eukaryotic phytoplankton in the oceans and are responsible for around 20% of global photosynthesis. Two whole genome sequences are now available. Notwithstanding, our knowledge of diatom biology remains limited because only around half of their genes can be ascrib…
We exploited a precursor-template route to chemically synthesize NaNbO3 nanobelt arrays. Na7(H3O)Nb6O19·14H2O nanobelt precursor was firstly prepared via a hydrothermal synthetic route using Nb foil. The aspect ratio of the precursor is controllable facilely depending on the concentration of NaOH aqueous solution. The…
In this paper, we report a simple and inexpensive method for fabricating stable superhydrophobic films from flexible carbon nanotube (CNT)/polymer coatings. The CNT/polymer coatings, which do not contain any fluorinated compounds, maintain their superhydrophobicity after bending and pressing and display excellent envi…
Fullerene′s topology: Inorganic–organic hybrid cage clusters containing 36 and 60 uranyl peroxide polyhedra and 6 or 30 oxalate groups (see representation of a {U60} cluster) self-assemble in aqueous solution under ambient conditions. These clusters, which are derivatives of fullerene topologies, were crystallized for…
CdTe quantum dots (QDs) capped with mercaptoacetic acid were applied to the hydrogen peroxide-sodium hydrogen carbonate chemiluminescence (CL) system. The CL emission intensity was significantly enhanced by different sizes of CdTe QDs. Peroxymonocarbonate (HCO(4)(-)) was formed in the reaction of hydrogen peroxide and…