Materials Literature
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The synthesis of a new functionalised bis-macrocyclic ligand (L1) is described together with the corresponding Ln(III) complexes, Ln(2)- (Ln = Gd(III), Eu(III)). Phosphorescence measurements on Gd(2)- at 77 K allowed the ligand-centred triplet state ((3)pi-pi*) to be estimated at ca. 28500 cm(-1). Steady state and tim…
The first and second generation of zinc porphyrin core dendrimers (3 and 4) with triarylamine as dendron have been synthesized via Ullmann coupling reaction. Their absorption and emission spectra indicate that there are strong interactions between zinc porphyrin core and triarylamine dendrons. Zinc porphyrin links wit…
The spread of a wetting liquid sessile droplet into porous medium is solved numerically using the capillary network model with a microforce balance boundary condition at the liquid/gas free interface in the porous medium. The spread starts as the porous medium imbibes the sessile liquid, followed by liquid additionall…
Photoliberation of a caged, chelating naphthalene antenna greatly enhances the luminescence of a Eu(III)-cyclen complex due to metal-bound water displacement and sensitization by the antenna, giving a lanthanide-labelling strategy in different media, being optimal in the presence of a TMADS surfactant.
Recently, zirconia films have attracted considerable attention because of their potential applications in solid oxide fuel cells and as thermal barrier coatings and oxygen sensors. Herein, we report that high-density zirconia films can be formed at room temperature by using the aerosol gas deposition (AGD) technique a…
Magnetic and self-heating properties of various size NiFe 2 O 4 (7.7-242.0 nm) were evaluated. The self heating temperature of each sample measured by applying ac magnetic field was affected by its magnetic property. The particle size dependence was also explained by the magnetic properties of the samples. At the lowe…
Oxide Composite of Ce ( Mn , Fe ) O2 and La ( Sr ) Fe ( Mn ) O3 for Anode of Intermediate Temperature Solid Oxide Fuel Cells Using LaGaO3 Electrolyte, Shin, Tae Ho, Vanalabhpatana, Parichatr, Ishihara, Tatsumi
High aspect ratio carbon nanotube arrays were grown using a hydrogen/water assisted catalytic chemical vapor deposition method using ethylene as precursor which achieves a growth rate of 25 to 30 μm carbon nanotube length per minute. The influence of the growth parameters determining the growth rate and the growth hei…
A series of yellow-emitting carbonitride phosphors with compositions of ( Y 1 − x Ce x ) 2 ( CN 2 ) 3 ( x = 0 – 0.1 ) was synthesized by using exothermic solid-state metathesis reactions. The wavelength of the broad band yellow emission was tunable, varying from 570 to 577 nm. The photoluminescence (PL) intensity enha…
A rigorous and consistent approach is demonstrated to develop a model of the 4M structure (the four-media structure of a film on a substrate of finite thickness). The general equations obtained for the reflectance and transmittance spectra of the 4M structure are simplified by employing a procedure of the so-called de…
Alpha-Manganese dioxide (alpha-MnO2) nanowires are used as electrode materials to significantly enhance the performance of lithium batteries. In this study, we investigate the nanotoxicity of alpha-MnO2 nanowires toward Hela cells. The alpha-MnO2 nanowires, which were successfully synthesized using the hydrothermal ap…
We present here a systematic study on the synthesis of various ZnO nanostructures by electrodeposition method with ZnCl 2 solution as starting reactant. Several reaction parameters were examined to develop an optimal procedure for controlling the size, shape, and surface morphology of the nanostructure. The results sh…
The conversion of 3,4-dialkoxy-benzenes into dialkoxy-benzo-1,3,2-dithiazolyls is described and representative examples (1 and 2) derived from benzodioxole and veratrol, respectively, are reported. Whilst 1 is a dimeric pi*-pi* dimer, the dimethoxy derivative 2 is monomeric in the solid state and exhibits antiferromag…
Dielectric properties of (1−y)Ba0.5Sr05TiO3–yMg2TiO4 (y=0.5–0.8) composite ceramics were studied by using spectroscopic techniques. Increasing the concentration of Mg2TiO4 resulted in hardening of the softest mode, which is responsible for the decrease in the intrinsic permittivity and dielectric loss with increasing…
The title compound (GDUT-4) is the first templated borate compound shown to have ferroelectric properties. Its structure consists of a metal complex and isolated polyanion. The chiral structure of the compound was induced by guest-complex cations according to host-guest symmetry through hydrogen bonds (H-bonds). The o…
Functionalized carbon nanotubes are increasingly exploited as innovative components for the development of advanced biomedical devices. In this study we report a novel synthetic route for the formation of single-walled carbon nanotube (SWCNT)–polyaniline (PANI) hybrids by in situ chemical polymerization. The surfactan…
The photoconversion of photomorphic silver nanoparticles from discs to prisms via citrate mediated growth on the twin plane faces of the nanoparticles is demonstrated. This systematic shape evolution from discs to hexagons and then prisms of increasing aspect ratios is a result of the growth process being confined to…
When beta-ionone-in-water emulsions are mixed with squalane-in-water emulsions, the slightly water-soluble, mobile beta-ionone undergoes mass transfer to the drops of highly water-insoluble, immobile oil squalane. We have investigated this compositional ripening process for emulsions stabilised either by particles or…
Polycrystalline Bi0.5Ca0.5Mn1-xCoxO3(0≤ x≤0.12) samples are synthesized by using the solid-state reaction. The effects of Co-doping on charge order of Bi0.5Ca0.5MnO3 are studied. The results show that Co doping leads to the melting of the charge order and the enhancement of the ferromagnetic correlation. For x≥0.08, t…
CaCO3 whiskers were synthesized with soluble phosphates by one-step carbonization method, controlling mechanisms were investigated via XRD and FTIR, and it has been indicated that the most stable calcium phosphates in thermodynamics, hydroxyapatite was formed through the reaction of soluble phosphates and Ca(OH)2 in a…