Materials Literature
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Well-defined 3D Ni(OH)2 nanoflowers were synthesized in high yield via a simple surfactant-free hydrothermal process. On the basis of a series of contrast experiments, the probable growth mechanism and fabrication process of the products were proposed. NiO nanoflowers have also been obtained by thermal decomposition o…
The crystallization of amorphous Ge x Te 1-x (x = 0.36,0.51, 0.63) films (50 nm) has been investigated by time resolved reflectivity, transmission electron microscopy, Raman spectroscopy and X-ray diffraction. The Ge-rich film has the highest crystallization temperature (354°C) with respect to both GeTe (180°C) and Te…
Facile protonation of α-octabutoxyphthalocyaninato zinc(II) (Zn(OBu)(8)Pc) occurs to afford up to tetra-protonated species stabilized by intramolecular hydrogen bonding, resulting in positive shifts of the reduction potentials of Zn(OBu)(8)PcH(n)(n+) (n = 1-4) with increasing the number of protons attached to facilita…
A novel eutectic hydrogen storage system, LiBH4·NH3–nNH3BH3, which exists in a liquid state at room temperature, was synthesized through a simple mixing of LiBH4·NH3 and NH3BH3 (AB). In the temperature range of 90–110 °C, the eutectic system showed significantly improved dehydrogenation properties compared to the neat…
We report for the first time the preparation and characterization of novel polymer nanocomposites based on inorganic nanotubes (INTs) processed by an advantageous melt-processing route. This strategy offers an attractive way to combine the merits of organic and inorganic materials into novel polymer/INTs and opens new…
Six new homodinuclear lanthanide(III) complexes with a flexible tripodal carboxylate ligand (H(3)L), of formulae [Ln(2)L(2)(DMF)(4)]·4DMF (Ln = La (1), Nd (2), Eu (3), Gd (4), Tb (5), Dy (6), DMF = N, N-Dimethylformamide) have been synthesized. Among them, 1, 2, 3, 4, 6 were characterized by single-crystal X-ray diffr…
The local chemistry and electronic structure variations of an individual carbon nanotube coated with tin oxide nanoparticles have been studied by nanoscale chemical imaging using Scanning Transmission X-ray Microscopy (STXM). Specifically, STXM images at the O and C K-edges with a spatial resolution of 30 nm have been…
We describe a simple route for designing ultranarrow PbS rods of 1.7 nm in diameter in a single step under bench-top reaction conditions. The rods are size controlled into 2.5 nm diameter by tuning the reaction temperature. Both the nanorods exhibit molecule-like discrete narrow optical behavior with high fluorescence…
Bandgap-engineered monodisperse HgTe NCs of different sizes were synthesized by means of a facile temperature-control method, a non-aqueous and non-Te-gas process. The photo-physical properties of the synthesized NCs in a simple photovoltaic device were tested. It was shown that this cell is capable of processing sign…
A series of 16 symmetric, dimeric, dicationic liquid-crystalline ionic liquids with mesogenic 3,4,5-tris(alkyloxy)benzyl moieties tethered to two bridged imidazolium cations were designed and synthesised. As a comparison, 12 monocationic imidazolium liquid crystals with the same mesogens were also prepared. The mesomo…
Optical and fluorescence properties of Dy2O3-doped P2O5+K2O+MgO+Al2O3 and P2O5+K2O+MgO+MgF2+Al2O3 glasses have been investigated at room temperature. From the optical absorption measurements and using Judd–Ofelt (JO) theory, JO parameters have been obtained which are used to predict the radiative properties of 4F9/2 l…
The preferential oxidation (PROX) of CO in the presence of H(2) is an important step in the production of pure H(2) for industrial applications. In this report, two sonochemical methods (S1 and S2) were used to prepare highly dispersed Ru catalysts supported on mesoporous TiO(2) (TiO(2)(MSP)) for the PROX reaction, in…
The dispersion of single-walled carbon nanotubes (SWCNTs) in the presence of water soluble polypyridyl complexes of the general formula [Ru(x)(bpy)(y)L](2+) (L = dppz, dppn, tpphz) is reported. These ligands have extended planar π systems, which aid in the solubilization of SWCNTs via π-π interactions.
Langmuir films of bent-core molecules at the air/water interface are transferred onto a solid surface by the inverse-Langmuir-Schaefer (ILS) technique. Previous work by the authors demonstrated that ILS films of a symmetric bent-core molecule can serve as effective planar alignment layers for a nematic bent-core liqui…
Application of Solid Oxide Fuel Cells (SOFC) in gasification-based power plants would represent a turning point in the power generation sector, allowing to considerably increase the electric efficiency of coal-fired power stations while reducing CO2 and other pollutant emissions. The aim of this paper is the thermodyn…
Nanoporous copper (NPC) ribbons with bimodal pore size distributions can be facilely fabricated by one-pot chemical dealloying of dual-phase Al 15 atom % Cu alloy with quasieutectic structures in the HCl or NaOH solution. These NPC ribbons are composed of interconnected large-sized pores (several microns) with highly…
The hydriding kinetics of Pd thin films has been investigated in detail. The in situ experimental technique used in this work consists of a high resolution curvature measurement setup, which continuously monitors the reflections of multiple laser beams reflecting off a cantilevered sample. After mounting the sample in…
CNTs/PAN nanofibers were electrospun from PAN-based solution for the preparation of carbon nanofiber composites. The as-spun polyacrylonitrile-based nanofibers were hot-stretched by weighing metal in a temperature controlled oven. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used…
A new class of quaternary ammonium derivatives has been used to synthesize cationic CdSe/ZnS quantum dots with exceptional stability in water as well as in biological media.
A novel Ce3+-doped fluorosulfide phosphor, α-(Y,Gd)FS:Ce3+, was first investigated as a new candidate for application in phosphor-converted light emitting diodes (LEDs) and thin-film electroluminescence (TFEL) devices. The detailed crystal structure was investigated based on X-ray diffraction profiles using Rietveld r…