Materials Literature
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Transparent conductive oxide (TCO) films are widely used in many consumer products. The properties of the TCO can critically affect the efficiency of the application. With this in mind the surface morphological, optical and electrical properties have been targeted by systematic exploration of the Atmospheric Pressure…
A novel method using supercritical N,N-dimethylformamide (SC-DMF) exfoliation is proposed for the preparation of trimanganese tetroxide (Mn3O4) nanosheets. The obtained Mn3O4 nanosheets have nanoscale thickness and lateral dimensions of hundreds of nanometers. The change in morphology from a bulk to a two-dimensional…
One new asymmetrically substituted 1,2,4-triazole, 4-amino-3-(p-bromophenyl)-5-(2-pyridyl)-1,2,4-triazole (L), and its iron(II) complex, trans-[FeL2(NCS)2] (1), have been synthesized and characterized by elemental analyses, FT-IR, 1H NMR, ESI mass spectra, and single-crystal X-ray crystallography. Crystallographic stu…
First-principles density functional theory (DFT) calculations were performed to study the stability and magnetic properties of TM–CxNy (TM = Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn; x/y = 0, 1 and 2 and x + y = 2) edge defects in armchair graphene nanoribbon (9-AGNR). The results showed that the edge functionalizatio…
Numerous waste products have been widely studied and used as soil amendments and metal immobilizing agents. Waste utilization from ethanol production processes as soil amendments is one of the most promising and sustainable options to help utilize materials effectively, reduce waste disposal, and add value to byproduc…
Co-doped BaFe2As2 (Ba-122) can be realized on both MgO and SrTiO3 bicrystal substrates with [001]-tilt grain boundary by employing Fe buffer layers. However, an additional spinel (i.e. MgAl2O4) buffer between Fe and SrTiO3 is necessary since an epitaxial, smooth surface of Fe layer can not be grown on bare SrTiO3. Bot…
A new series of intermolecular hydrogen-bonded liquid crystals are synthesised. The hydrogen bond formed between the mesogenic p-n-alkoxy benzoic acids (nOBAs) and non-mesogenic perfluorooctanoic acid (PFOA) (where n represents the alkoxy carbon numbers from 4 to 12 and 16). The IR spectral investigation confirms the…
Charged chromophores based on heteroaromatic cations were prepared by reaction of alkylazinium salts with N-heteroarylstannanes under Stille conditions. This approach provides easy access to potential single donor D-A(+) chromophores in which the acceptor moiety A(+) is the pyridinium cation and the donors are differe…
A series of ligands that contain both N-donor and N-oxide donor atoms have been synthesised and ligands L5, L6, L7 and L8 contain, 4, 6, 5, and 6 donor atoms respectively. The smallest ligand L5 forms a mononuclear complex with Cu2+ ([Cu(L5)(ClO4)2(MeCN)]) whereas L6 and L7 form dinuclear double helicates with Ni2+ an…
Previous works have shown that hyperhalogens can be created by changing the building blocks from halogens to superhalogens, e.g. hyperhalogens (Cu(BO2)2, Na(BO2)2 and Au(BO2)2) are created by replacing halogens of superhalogens MX2 (M = Cu, Na and Au; X = F, Cl and Br) with the superhalogen BO2, which has a higher ele…
The specific structural features of technetium mononuclear octahedral oxo complexes have been considered. The structures of d 2-Tc(V) mono- and dioxo complexes, d 2-Tc(V) pseudodioxo compounds (Tc(V) mono-oxo complexes with an additional multiply bonded RO− ligand), and d 0-Tc(VII) trioxo compounds are analyzed.
α-Fe2O3 nanoparticles have been formed on a flexible polyimide (PI) substrate via an ion-exchange and in situ oxidation process in air, which involved doping the ferrous (Fe2+) ions into modified layers of PI films and a subsequent thermal treatment converted Fe2+ into α-Fe2O3 nanoparticles. These nanoparticles would…
The quinoline urea derivatives 1,3-di(quinolin-5-yl)urea (DQ5U), 1-phenyl-3-(quinolin-6-yl)urea (PQ6U), 1-(isoquinolin-5-yl)-3-phenylurea (PiQ5U) and 1-phenyl-3-(3,5-bis(pyrid-2-yl)-1,2,4-triazol-4-yl)urea (PPT4U) have been synthesised and structurally characterized by powder and single crystal X-ray diffraction. Thei…
We recently developed a new dispersant which can decrease the viscosity of concentrated polyethylene (PE) particle dispersions significantly. This dispersant is a block copolymer constructed with side chain crystalline monomers and solvent compatible monomers (Side Chain Crystalline Block Copolymer : SCCBC). Also the…
Adsorption of oxygen molecule on single layer graphene with the STW defect is investigated using the density functional calculations. The physisorption and induced change in the low energy band structure are discussed in detail. A physisorbed O2 molecule on defect-free graphene acts as a hole-dopant as a result of tha…
In bent-core smectic liquid crystal phases, a strong local preference for layering coupled to the bent molecular shape gives rise to two spontaneous symmetry-breaking instabilities, polar orientational ordering of the molecules and molecular tilt, which combine to produce chiral phases. The B7 is one such phase charac…
Nanotechnology is a multidisciplinary field originating from the interaction of several different disciplines, such as engineering, physics, biology and chemistry. New materials and devices effectively interact with the body at molecular level, yielding a brand new range of highly selective and targeted applications d…
Leave of Punica granatum extract (LPGE) as green inhibitor for the corrosion of mild steel in 1M HCl solution was studied using weight-loss and potentiodynamic polarization measurements. The results obtained revealed that LPGE has fairly good inhibiting properties for mild steel corrosion in 1M HCl solution, with effi…
Mesoporous MCM-41-type molecular sieves were synthesized using calcined and leached chrysotile and cetyltrimethylammonium bromide as the silica source and structure directing agent, respectively. Powder X-ray diffraction (XRD), N2 isothermal adsorption-desorption, scanning electron microscopy (SEM) and thermogravimetr…
We have investigated the temperature dependence of photoluminescence (PL) dynamics of self-assembled monolayers (SAMs) of CdSe quantum dots (QDs). The PL decay profiles become slower with an increase in temperature up to 160 K, contrary to an ordinary behavior due to thermal quenching. Such anomalous temperature depen…