Materials Literature
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The effect of benzene fluorination on C-H...pi interactions is studied using a number of computational methods applied to a range of intermolecular complexes. High level wavefunction methods (CCSD(T)) predict a slightly greater interaction energy for complexes of benzene with methane or fucose, compared to correspondi…
Nano-composite of single walled carbon nanotubes (SWCNTs) and iron phthalocyanine, peripherally tetra-substituted with diethylaminoethanethiol (complex 2), was fabricated and characterized by infra red (IR) spectroscopy, X-ray diffraction (XRD) and transmission electron microscopy (TEM). TEM technique gave a convincin…
The Journal of Aerospace Technology and Management is a techno-scientific publication serialized, edited, and published by the Institute of Aeronautics and Space (Instituto de Aeronáutica e Espaço-IAE).
As is known, paclitaxel (PTX), one of the most effective anticancer drugs on the market today, has been demonstrated in clinical trials against a wide variety of tumors, including ovarian carcinoma...
The preparation of SiO2 ceramics with controllable porous structure from fir flour templates via sol-gel processing was investigated. The specific size the fir flour, which was treated with 20 % NaOH solution, was infiltrated with a low viscous silica sol and subsequently calcined in air, which resulted in the formati…
In this paper, a comparative study on the fracture toughness of woven glass fibre reinforced polypropylene, chopped glass fibre reinforced polypropylene and nanoclay filled polypropylene composites is presented. Nanoclays (Cloisite 15A) of 1 wt. % to 5 wt. % were filled in polypropylene (PP) matrix and they were subje…
Purpose of the review: This work reviews novel sources of edible films, coatings and formulations, including combined materials and a lipid phase, and highlights the main results of the most recent investigations carried out on the topic. New tendencies based on the incorporation of diverse active compounds (antimicro…
We report on the observation of self-assembled carbon nanostructures on a standard transmission electron microscopy (TEM) Au substrate formed via thermal chemical vapor deposition. Multi-walled carbon nanotubes (MWNTs) and other carbon nanostructures (CNs), such as carbon nanofibers and carbon nanoparticles (NPs), cou…
Tb(3+)-doped Y(3)Al(5)O(12) powders have been synthesized from alkoxide precursors using, or not using, acetylacetone as a chemical modifier. The terbium oxidation state and local environment of amorphous and crystallized powders have been comparatively investigated by means of X-ray absorption near-edge structures (X…
Two bismuth oxide materials containing large lanthanide and rhenium cations, Bi25La3Re2O49 and Bi25Pr3Re2O49, have been synthesised in the stabilised face-centred cubic structure. They exhibit very high oxide ion conductivity but prolonged annealing at 600 °C causes a decrease in conductivity, which has been shown to…
Datasets obtained by viscometry of Fuji 1707 basalt at a pressure of one atmosphere (Ishibashi, 2009) were analyzed by using the Bingham fluid model, and both the yield stress (τy) and Bingham viscosity (ηB) were determined. The relation between ηB and the crystallinity (Φ) was compared with the Krieger-Dougherty equa…
Neutron diffraction data from in situ deuteration and dedeuteration of Li(3)N are presented under different pressure regimes, whereby reaction pathways differing from the widely reported stoichiometric pathway of Li(3)N + 2D(2)<--> Li(2)ND + LiD + D(2)<--> LiND(2) + 2LiD are observed. At sufficiently high pressures, w…
We summarise in this paper the work of two groups focusing on the synthesis and characterisation of functional oxide for nanoelectronic applications. In the first section, we discuss the growth by liquid-injection MOCVD of oxides heterostructures. Interface engineering for the minimisation of silicate formation during…
Perfluorocarbon residues, i.e. perfluoroethyl (PFE), CF3CF2–, perfluoro-n-propyl (PFnP), CF3CF2CF2–, perfluoro-isopropyl (PFiP), (CF3)2CF–, and perfluoropolyether (PFPE) chains, e.g. (CF2CF2O)m(CF2O)n, were covalently bonded on the surface of carbon black (CB) and diamond-like carbon (DLC) using PFPE and perfluorodiac…
The excited state dynamics of periodic mesoporous organosilica (powder) bearing biphenylylene moieties densely in the silica framework (Bp-PMO) is investigated for the first time using femtosecond time-resolved diffuse reflectance (TDR) and picosecond time-resolved fluorescence spectroscopies. The TDR spectra revealed…
The reaction details of hydrogen storage process of a ternary imide Li(2)Mg(2)N(3)H(3) are elucidated for the first time. It is found that 1 mole of Li(2)Mg(2)N(3)H(3) converts to a mixture of Mg(NH(2))(2)-2LiH-MgNH on taking up 2 moles of H(2), and that the presence of MgNH in the Mg(NH(2))(2)-2LiH system not only al…
We report a general method for the synthesis of hollow structures of a variety of functional inorganics by partial sintering of mesoporous nanocrystal aggregates. The formation of a thin shell initiates the transport of mass from the interior leading to growth of the shell. The principles are general and the hollow st…
Oxides with the delafossite structure (space group R m ) are of interest as wide-bandgap semiconductors, and as multiferroics. Well oriented c -axis films of CuCrO 2 and CuCr 0.9 Mg 0.1 O 2 have been produced on c -cut sapphire by PLD at elevated temperatures (650 °C). The lattice parameters for CuCrO 2 are a = 299.6…
Bacterial storage lipids including poly(hydroxyalkanoates), triacylglycerols and wax esters are biodegradable materials with applications in food production, household goods, cosmetics, packaging and medicine. They are produced as a carbon and energy store by a wide range of species, and are accumulated in cytoplasmic…
The syntheses, crystal structures, and magnetochemical characterization are reported of a novel family of four pentanuclear manganese complexes, namely, [Mn(III)(5)(mu(3)-O)(2)(L(1))(4)(O(2)CMe)(3)(CH(3)OH)].1.5CH(3)OH.2.5H(2)O (1), [Mn(III)(5)(mu(3)-O)(2)(L(1))(4)(O(2)CPh)(3)(CH(3)OH)].2CH(3)OH.2.25CH(3)CN.1.5H(2)O (…