Materials Literature
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Two novel tetrathiafulvalene (TTF) containing compounds 1 and 2 have been synthesised via a four-fold Stille coupling between a tetrabromo-dithienoTTF 5 and stannylated thiophene 6 or thiazole 4. The optical and electrochemical properties of compounds 1 and 2 have been measured by UV-vis spectroscopy and cyclic voltam…
Zeolites (sodium alumino silicates) are effective controlled nutrient release materials that are highly useful to improve soil nutrient use efficiency, plant uptake of nutrients especially NPK because of its twin benefits of high cation exchange and water retention properties. In this paper, we evaluated different typ…
In this work, montmorillonite (MMT) nanoclay reinforced epoxy resin was prepared to study the effect of nano filler on tensile and flexural properties of its nanocomposite. MMT was first sonicated for 2 hours with an acetone where the ratio was 50 mL acetone: 1g clay. After being sonicated the clay was added to an epo…
This work evaluates intercalation of Nortriptyline (NT) and Venlafaxine (VFX) in an interlayer gallery of Na+-MMT (Montmorillonite), which was further compounded with Poly (L-Lactide) (PLLA) to form microcomposite spheres (MPs) for oral controlled drug delivery. The XRD patterns, thermal and spectroscopic analyses ind…
In this paper we present a detailed design study of a novel apparatus for safely generating hydrogen (H2) on demand according to a novel method, using a controlled chemical reaction between water (H2O) and sodium (Na) metal that yields hydrogen gas of sufficient purity for direct use in fuel cells without risk of cont…
Different approaches are used for the integration of ceramic components in solid oxide fuel cells stacks, where dissimilar materials (ceramics and metals) have to be joined and coupled for a reliable long term operation. This work focuses on the mechanical characterisation of a glass ceramic sealant used for the joini…
A systematic computational study of the gas-phase adsorption of different amino-acid-analogues (AA-an’s) on a (6,0) boron nitride nanotube (BNNT) and on a boron nitride monolayer (BNML) has been performed by means of B3LYP-D2* periodic calculations. The AA-an’s are CH 3 -R molecules, where R represents functional grou…
Two major improvements to the state-of-the-art Repeating Electrostatic Potential Extracted Atomic (REPEAT) method, for generating accurate partial charges for molecular simulations of periodic structures, are here developed. The first, D-REPEAT, consists in the simultaneous fit of the electrostatic potential (ESP), to…
Self-assembly of colloidal particles into colloidal films has many actual and potential applications. While various strategies have been developed to direct the assembly of colloidal particles, fabrication of crack-free and transferrable colloidal film with controllable crystal structures still remains a major challen…
We derive and introduce anisotropic effective pair potentials to coarse-grain solutions of semiflexible ring polymers of various lengths. The system has been recently investigated by means of full monomer-resolved computer simulations, revealing a host of unusual features and structure formation, which, however, canno…
Highly ordered block copolymer thin films have been studied extensively during the last years because they afford versatile self-assembled morphologies via a bottom-up approach. They promise to be used in applications such as polymeric membranes or templates for nanostructured materials. Among the block copolymer stru…
Activated carbon monolith porous electrodes of a supercapacitor prepared by carbonization (N 2 ) and activation (CO 2 ) methods from KOH-treated pre-carbonized biomass fibers were deposited with nickel oxide at varying dipping time (from 0 to 60 min) in 20 mL of 0.1 mol Ni(NO 3 ) 2 and 20 mL of 0.2 mol NaOH solution f…
2Mg(NH2)2–3LiH–LiBH4 composite exhibits an improved kinetic and thermodynamic properties in hydrogen storage in comparison with 2Mg(NH2)2–3LiH. The peak temperature of hydrogen desorption drops about 10 K and the peak width shrinks about 50 K compared with the neat 2Mg(NH2)2–3LiH. Its isothermal dehydrogenation and re…
Homogeneous reaction precursors may be used to form several solid-state compounds inaccessible by traditional synthetic routes, but there has been little development of techniques that allow for a priori prediction of what may crystallize in a given material system. Here, the local structures of FeSbx designed precurs…
One-dimensional, hydrous ruthenium oxide nanotubes (RuO2·1.84H2O) have been successfully achieved using a template-free, microwave-hydrothermal process. These were found to be amorphous in nature and have a large specific surface area of 250 m(2)·g(-1), producing a specific and volumetric capacitance of 511 F·g(-1) an…
Nanoscale dielectric capacitors have been widely studied due to their ability to store a high amount of energy. In this research, we have modeled one which is composed of a few dopants graphene layers including Li, Be, B (of second row in Mendeleev table) separated by an insulating medium of a few horizontal boron nit…
We here report a systematic theoretical study on geometries, electronic structures, and energetic stabilities of six hexanuclear polyoxometalates [M6O19](2-) of the six-valence-electron metals including the d-elements M = Cr, Mo, W, Sg from group 6 and the f-elements M = Nd, U. Scalar relativistic density functional t…
The aim of this work is to study the mechanical properties of alloy AA7075 in both T6 and O temper states, in terms of visco-plastic and fracture behavior. Tension and compression tests were carried out starting from the quasi-static loading condition 10 -3 up to strain rates as high as 2 x 10 3 s -1 . The high strain…
In this study, physical, mechanical, thermal, fire and biological properties of thermoplastic composites filled with fire retardant and tea mill waste fiber were investigated. The composites produced with the extrusion method were accomplished by using tea mill waste fiber as lignocellulosic materials and high-density…
This review intends to summarize recent advancements in FeSe and related systems. The FeSe and related superconductors are currently receiving considerable attention for the high critical temperature ( T C ) observed and for many similar features to the high T C cuprate superconductors. These similarities suggest that…