Materials Literature
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A key component in the molten carbonate fuel cell (MCFC) is electrolyte matrix, which provides both ionic conduction and gas sealing. The aim of this work is to investigate the effects of selected operating conditions on the performance of the matrix preparation. Slurries were prepared to produce matrices by the techn…
The benefits of branched TiO2 nanotubes in comparison their non-branched counterparts with respect to dye sensitized solar cells (DSSC) were studied. The branched nanotubes were produced by ramping the applied voltage during anodization by a factor 1/√2. DSSC performance, dye loading, and the impedance of the oxides w…
A bi-layered TiO 2 nanotube membrane possessing fast electron transport and light scattering is used in a photoanode of DSSCs.
A dihydro-TTF derivative with four acetyl-protected thiol ligands was synthesised and adsorbed on Au(111) under UHV conditions. Scanning Tunnelling Microscopy (STM) and Infrared (IR) spectroscopy show that self-organised structures are formed following annealing to 333 K, with each pair of bidentate thiolate ligands b…
A new 12L-hexagonal perovskite fluoride Cs 4 Mg 3 CaF 12 originates from cubic CsMgF 3 by substituting 25% Mg 2+ with larger Ca 2+ . Larger Ca 2+ extrude the space for Mg 2+ , which lead to the structural transition.
We demonstrate a facile technique to assemble solution phase-synthesized bismuth telluride (Bi2Te3) nanoplatelets into arrays of micropatterns. Aminosilane self-assembled monolayers (SAMs) are printed on silicon dioxide (SiO2) substrates using microcontact printing (μCP). The SAM printed surfaces are terminated with a…
The direct interaction of MoCl5 with a series of carboxylic acids has been elucidated for the first time. The reactions proceed with release of hydrogen chloride and Cl/O interchange between the metal centre and one equivalent of organic substrate: this feature is unique in the context of the chemistry generally shown…
Multiple-porous GaN structures were formed in InGaN light-emitting diodes (LEDs) structures through a selective photoelectrochemical (PEC) etching process. A 1.3 μm-thick PEC-treated n + -GaN:Si layer consisting of nanoporous, whisker, fiber-shaped, networking, and air-gap structures located at the bottom of the LED s…
We report the photocatalytic dye degradation properties of self-assembled gallium nitride (GaN) nanowires grown using chemical vapor deposition.
The field of "inorganic materials from ionic liquids" (ILs) is a young and dynamically growing research area for less than 10 years. The ionothermal synthesis in ILs is often connected with the preparation of nanomaterials, the use of microwave heating and in part also ultrasound. Inorganic material synthesis in ILs a…
Levulinic acid (LA) is one of the versatile chemicals that can be produced from lignocellulosic biomass. In this study, response surface methodology (RSM) and artificial neural network (ANN) were applied to optimise LA yield from glucose, empty fruit bunch (EFB) and kenaf. The effect of process variables namely reacti…
In this paper, we give a set of sufficient conditions for the univalence, starlikeness and convexity of a certain newly-defined general family of integral operators in the open unit disk. Relevant connections of the results presented here with those that were obtained in earlier works as well as several interesting co…
A new family of energetic salts based on a guanidinium cation containing furoxanyl functionality was synthesized and well characterized.
All the known chromium(III) NASICON-related phosphates are considered to be solid solutions. In these compounds chromium atoms share their position in the basic framework of the crystal lattice with other structure forming elements such as zirconium. In our study, we have hypothesised a completely new way of structura…
Tool life in turning sintered steels is shorter than that in turning melted steels such as carbon steels. In order to identify an effective tool material for cutting hardened sintered steel, tool wear was experimentally investigated. Hardened sintered steel was turned with two kinds of PVD coated cemented carbide tool…
Adipose tissue is an abundant source of progenitor cells with multidifferentiation potential and these cells, termed adipose-derived stem cells (ASC), have become an important proposed treatment for use in wound healing. The ability of these cells to increase angiogenesis (vessels arise from other vessels) and vasculo…
A stereoselective synthesis of the cone stereoisomer of thiacalix [4]arene bearing four triazolyl coordinating sites at the lower rim, 2, has been achieved by the 1,3-dipolar cycloaddition of p-nitrophenylazide to tetrakis-(propargyloxy) thiacalix[4]arene, 1, in presence of copper(I) iodide. A combination of 2 with Ag…
Titanium dioxide is considered as one of the most important materials due to its unique dielectric, electrochemical, photocatalytic and optical properties. These properties can be altered by introducing particular amount of dopants. In this work, Ca-doped titanium dioxide was formed by electron beam deposition method…
This study investigates whether the transformation-induced plasticity (TRIP) of metastable retained austenite, and a finely dispersed MA-like phase (narrow-lath martensite-retained austenite complex phase), produced by the addition 1.5%Si or 1.5% Si-1.0%Cr (mass%) can improve the cold formability of 22MnB martensitic…
We have recently demonstrated that molybdenum ultra-thin films interposed between hydrogenated amorphous silicon (a-Si:H) and SnO 2 :F transparent conductive oxide (TCO) in thin film a-Si:H solar cells show light trapping effects which enhance the solar cells performances. The effect of this improvement may be attribu…