Materials Literature
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Despite the numerous studies of the famous indigo-based pigment Maya Blue, there are still many questions regarding the elucidation of its structure. Here, two-dimensional (2D) (1)H-(29)Si heteronuclear correlation (HETCOR) spectroscopy with frequency-switched Lee-Goldburg (FSLG) homonuclear decoupling is applied to s…
We report a facile solution process to synthesize monodisperse porous nanodiscs through confined molecular self-assembly of surfactants and ZnTPyP. The nanodiscs exhibit trimodal pores with fluorescent and crystalline wall structures, and are potentially important for sorption and separation, sensors, catalytic materi…
Differential scanning calorimetry (DSC), broadband dielectric relaxation spectroscopy (DRS), and thermally stimulated depolarization current (TSDC) techniques were employed to investigate glass transition and polymer dynamics in nanocomposites of polyurethane (PU) and organically modified montmorillonite (MMT) (weight…
Strong alkaline microcavities were constructed through the water-induced protonation of dodecylamine for the synthesis of fluorescence-tunable ZnO QDs in neutral bulk reaction solution.
The well-investigated method to prepare various nanoparticles is a thermolysis method in hot organic solutions. These nanoparticles are usually dispersible in nonpolar organic solvents, which sometimes causes problem to overcoat them with silica due to the polar alcoholic solvent in the silica forming process. We have…
Uniform Lu2O3 hollow microspheres have been successfully fabricated via a urea-based homogeneous precipitation method with colloidal melamine formaldehyde (MF) microspheres as hard templates followed by a subsequent calcination process. The uniform Lu2O3 hollow microspheres with diameters about 1.8 μm inherit the perf…
To evaluate the usability of silk protein (sericin, SC) as a sustained-release material, the physicochemical properties of SC and the release profiles of model drugs from SC gel, sponge and film were studied. Heat aids the dissolution of SC. The molecular weight of SC tended to decrease as the heating temperature and…
A new dicompartmental dioxime ligand (H(2)L) with m-xylyl spacer between the donor sites has been synthesised by Schiff-base condensation of α,α'-diamino-m-xylene and diacetyl monooxime. The ligand reacts with copper(ii) salts giving rise to hexanuclear tricationic copper(II) cage complexes [Cu(II)(6)(μ(3)-O···H···O-μ…
Nanoscale copper was selectively photodeposited onto the surface of hexadecylamine (HDA) stabilized (monodispersed not agglomerated) ZnO nanoparticles (NPs) of a diameter of 2-5 nm, which leads to HDA-stabilized Cu/ZnO NPs of varied Cu loading. The particles are soluble in non-polar organic solvents. The line broadeni…
A facile template‐free controlled synthesis of Cu 2 O architectures from octahedral to its different truncated forms is successfully achieved. It is found that the precursor formation temperature is crucial to the designated‐tailoring on the {100} facets of Cu 2 O crystals, which can modify the ratio ( R ) between the…
Tetrapod-shaped CdSe(core)/CdTe(arms) colloidal nanocrystals, capped with alkylphosphonic acids or pyridine, were reacted with various small molecules (acetic acid, hydrazine and chlorosilane) which induced their tip-to-tip assembly into soluble networks. These networks were subsequently processed into films by drop c…
Spray pyrolysis was applied to prepare phosphors, and the luminescence properties were investigated with changing content. Boric acid was used to improve the emission intensity and thermal stability. With increasing content, the emission peak shifted to the longer wavelength, which was explained by the relative streng…
An Eu 2 + -activated BaSi 7 N 10 cyan phosphor for UV-pumping white light-emitting diodes (LEDs) was successfully synthesized by direct gas reduction and nitridation of the homogeneous oxide precursor of a BaO – SiO 2 – Eu 2 O 3 system in flowing NH 3 and CH 4 mixture gas. The phase purity, morphology, chemical compos…
In recent days Zinc oxide (ZnO) attracted much interest due to its versatibility and size dependent opto-electronic properties. ZnO flake structures have been hydrothermally synthesized in the reaction of aqueous solution of cetyl trimethyl ammonium bromide (CTAB) and NaOH at 373.15 K. It was found that, the volume of…
The ZnS semiconducting nanoparticles were synthesized by simple chemical reaction of ZnCl2 and Na2S in aqueous solution. The main advantage of this method is the use of non toxic precursors and water is used as solvent. The as-prepared ZnS nanoparticles have average size of 12 nm. The structural, morphological, chemic…
This paper describes the experimental results of the fluorescence and phosphorescence observations in the Ca 2 MgSi 2 O 7 : Eu 2 + , Dy 3 + phosphors. Discussions are made to elucidate the relationship between the photoluminescence of Eu 2 + and the crystal structure of the host, the luminescent quenching of the emiss…
In this paper, based on the literature data, are described the electrochemical theoretical concepts for the two methods used for determination of instantaneous corrosion rates from polarization measurements: extrapolation of the Tafel slopes with corrosion potential - Stern method and polarization resistance - Stern-G…
High-tech products made by nano-materials are tightly connected to people's life. However environmental impacts and health effects of nanoparticles are widely getting attention. In this paper, we focused on the potential size-dependent cytotoxicity of nanomaterials. Silica (SiO2) nanoparticles were used as model mater…
Fibrous polymers with extremely low electrical conductivity such as polypropylene (PP), polycarbonate, polyurethane, and polyethylene are commonly employed as air-filter materials. The charge accumulated on such materials due to tribocharging effects inherent to the manufacturing process might be harmful either to the…
Integration of Vertical Carbon Nanotube Bundles for Interconnects, Chiodarelli, Nicoló, Kellens, Kristof, Cott, Daire J., Peys, Nick, Arstila, Kai, Heyns, Marc, De Gendt, Stefan, Groeseneken, Guido, Vereecken, Philippe M.