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。
An intense green luminescent Na₂Ca(PO₄)F:Mn²⁺ phosphor has been prepared at high temperature by reduction treatment in a charcoal environment. The emission band of Mn²⁺ was obtained at around 522 nm (green) under 259 nm excitation. Enhancement in emission intensity arising from the thermal treatment is reported. The i…
A phosphorylcholine-like silane coupling agent bearing zwitterionic molecular structure was synthesized and studied. The chemical structure of this silane coupling agent was characterized by FTIR, 1H NMR and 31P NMR. The zwitterionic structure was successfully constructed onto the surface of silicon as a self-assemble…
Abstract Purpose – The purpose of this paper is to study the inhibitive and adsorptive characteristics of ethanol extract of Heinsia crinata for the corrosion of mild steel in H2SO4 solutions. Design/methodology/approach – The inhibition efficiencies were evaluated using weight loss, thermometric and hydrogen evolutio…
We have succeeded in the production of defect-free and spatially organized individual one-dimensional peptide nanofilaments by real-time control of the self-assembly process on a solid substrate. Using a unique mechanical manipulation method based on atomic force microscopy, we are able to introduce mechanical stimuli…
Rapid thermal carbonization in a dilute acetylene (C(2)H(2)) atmosphere has been used to chemically modify and precisely tune the pore size of ultrathin porous nanocrystalline silicon (pnc-Si). The magnitude of size reduction was controlled by varying the process temperature and time. Under certain conditions, the car…
Luminescent cyclometalated platinum(II) complexes, namely [Pt(Thpy)(PPh3)X]n+ (HThpy = 2-(2′-thienyl)pyridine; X = Cl− (1), n = 0; X = CH3CN (2), pyridine (3), n = 1) and [Pt(Thpy)(HThpy)Y]n+ (Y = Cl− (4), n = 0; Y = pyridine (5), n = 1), exhibit structured emission with peak maximum at ∼556 and 598 nm in degassed ace…
Complex light metal hydrides such as alanates, amides, and borohydrides have among the highest hydrogen storage capacities of any materials investigated thus far. However, their use in the transportation industry is plagued by poor thermodynamics and kinetics as well as lack of reversibility at ambient pressure and te…
A small (1 L) batch stirred cell system has been developed to study crude oil fouling at surface temperatures up to 400°C and pressures up to 30 bar. Fouling resistance–time data are obtained from experiments in which the principal operating variables are surface shear stress, surface temperature, heat flux, and crude…
Copper, silver, and tellurium nanowires were electrodeposited into a hierarchical channel structure formed from columnar silica mesophases inside of anodic alumina membranes. The resulting wires were structurally and spectroscopically characterized within the host matrix, in the partially dissolved matrix, and complet…
ZnO shows a great variety of richly structured luminescence lines in a very narrow energy range of 30 meV below the free $A$-exciton line. At very low temperatures the majority of these lines can be explained by radiative recombination of excitons bound to neutral and ionized donors. With increasing temperature even m…
Silica dispersed copper nanomaterials with high dispersion and unusual thermal stability were prepared by a simple precipitation-gel method, and their physicochemical properties have been characterized by a variety of techniques including FTIR, XRD, XPS, TG-DSC, SEM, TEM, H 2 -TPR, and N 2 adsorption. Both Cu(OH) 2 na…
Homogenous precipitation by formamide hydrolysis results in the formation of a formate-intercalated layered double hydroxide (LDH) of Ni(II) and Al(III). The formate-LDH is sensitive to the atmospheric humidity and reversibly exchanges its intercalated water with atmospheric moisture. The hydration/dehydration cycle i…
A series of red phosphors Ca 1− x ZrSi 2 O 7 : Eu x ( x = 0.5,1,5,10,12 mol%) were prepared by a solid-state reaction technique at various temperatures and their structural and optical properties were investigated. The x-ray diffraction profiles showed that all peaks could be attributed to the monoclinic phase CaZrSi…
The structure of homogeneous bulk As x S100− x (25 ≤ x ≤ 42) glasses, prepared by the conventional rocking–melting–quenching method, was investigated using high-resolution X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. It is shown that the main building blocks of their glass networks are regular AsS3/2…
A gold substrate with surface-grafted ferrocene functional polymer brushes, or Au-g-PFTMA surface [PFTMA = poly(5-ferrocene-triazolyl methacrylate)], was prepared by a combination of surface-initiated atom transfer radical polymerization (SI-ATRP) and "click chemistry" in one pot, in the presence of 2-azidoethyl metha…
Polymer-chain complexes Cu(hfac)(2)L(R) represent an interesting type of molecular magnets exhibiting thermally induced and light-induced magnetic switching, in many respects similar to a spin crossover. In the majority of these compounds the polymer chain consists of alternating one- and three-spin units composed of…
This paper presents the outcomes from an extensive investigation on the structure and geometry of single hemp fibres, as well as configurations and related tensile strength (TS) of hemp fibres, with the aid of field emission scanning and optical microscopy. The results showed that 1) the TS increased with the decrease…
In an attempt to understand the single-molecule SERS of some small nonresonant molecules, such as adenine, it is inevitable to include the chemical enhancement mechanism to provide additional enhancement to the electromagnetic mechanism, although it may be much smaller than the electromagnetic field enhancement. We wi…
A new family of [Ln16As16W164O576(OH)8(H2O)42]80− (Ln = EuIII, GdIII, TbIII, DyIII, and HoIII) nanoclusters has been synthesized from a self-assembly process in solution. The novel macroanion is constituted of two identical sub-units with the formula [Gd8As8W82O288(OH)4(H2O)21]40− and it was obtained from the versatil…
Micromachined thermopiles are considered as a cost-effective solution for energy harvesters working at a small temperature difference and weak heat flows typical for, e.g., the human body. They can be used for powering autonomous wireless sensor nodes in a body area network. In this paper, a micromachined thermoelectr…