Materials Literature
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Crystallographic investigations of N9-propyladenine N1-oxide silver complexes, having different counteranions, are reported. While hydrogen bonded 1D polymeric chains were observed in case of NO3− (1) and BF4− (2); PF6− (3) and OTf− (4) afforded six membered metallacycles; and ClO4− (5) resulted in coordination polyme…
We show that the intermittent and self-similar fluctuations displayed by a slow crack during the propagation in a heterogeneous medium can be quantitatively described by an extension of a classical statistical model for fracture. The model yields the correct dynamical and morphological scaling, and allows to demonstra…
The results of preparation and structural characterization of glass-ceramics from the system Li2O-Al2O3-GeO2-P2O5 are shown in this paper. The crystallization behaviour of the selected glass was examined under non-isothermal and isothermal crystallization conditions. DTA, XRD and SEM methods were employed for analyses…
In this work, oil palm empty fruit bunch (EFB) and jute fibers were treated by 2-hydroxy ethyl acrylate (2-HEA) to enhance interaction with the epoxy matrix in hybrid composites. Hybrid composites were fabricated by the hand lay-up technique by reinforcing chemical-treated oil palm EFB and jute fibers in an epoxy matr…
Tuning the packing of materials in electrode films enabled highly efficient charge transport and a slowdown in recombination that were witnessed by electrochemical impedance spectroscopy (EIS). When used in dye-sensitized solar cell preparation, this led to significant enhancements of the overall solar power conversio…
This paper summarizes the synthesis, growth and the effect of the position of the substituent in the thienyl ring and also the properties of the grown chalcone crystals, 2-CTP and 3-CTP. The formation of compound is confirmed by the re- corded H1NMR spectra. A FT-IR spectrum confirms the presence of all functional gro…
In this paper we report a surface-mediated growth process for oriented anisotropic particles with tunable morphologies. The morphology of the anisotropic particles can be tuned and the generality of this process is checked. This process also provides a new avenue for constructing ensembles of anisotropic particles.
Waste tire powder was used to reduce NO emission by reburning and burnout in a two-stage furnace with simulated flue gas. Ceramic tubes were used as the flow reactor. The reburning temperature was 1150 °C and burnout temperature was 1250 °C respectively. The simulated flue gas consisted 16.8% vol. CO2, 1.95% vol. O2,…
Mesoporous lanthanum phosphate nanostructures, involving diverse shaped LaPO4 nanostructures synthesized in EG solution and dandelion-like LaPO4·0.5H2O nanospheres obtained in aqueous solution, have different surface areas and pore volumes for various nanostructures. Lanthanum phosphate containing H3PO4 were prepared…
A spherical, block copolymer (BCP) with a statistical mid-block was investigated under confinement via forced assembly co-extrusion. This approach provided a continuous methodology to investigate the effect of layer thickness and substrate on the morphology of a unique self-assembling material. It was demonstrated tha…
High efficiency white organic light emission devices were demonstrated with phosphor material dye bis[2-(4-tertbutylphenyl)benzothiazolato-N,C2′]iridium (acetylacetonate) and ultrathin layer structure. The ultra thin layer be composed of 4,4′-bis[N-1-naphthyl-N-phenyl-amino]biphenyl (NPB) or 4,4′-N,N′-dicarbazole-biph…
ENERGETIC MATERIALS. The aim of this work was to synthesize a polyurethane polymer matrix using castor oil as a polymer chain modifier, whose characteristics can be adjusted for use as a binder in the manufacture of energetic materials such as propellant and pyrotechnics for aerospace use. We attempted the partial sub…
We report the design of a portable atomic layer deposition (ALD) reactor that can be integrated into synchrotron facilities for in situ synchrotron photoemission studies. The design allows for universal installation of the system onto different beam line end stations. The ALD reactor operates as a fully functional, lo…
Linear assemblies of carbon nanotubes (LACNTs) were fabricated and controlled in polysiloxane‐based nanocomposite films and the effects of the LACNTs on the thermal and electrical properties of the films were investigated. CNTs were dispersed by mechanical stirring and sonication in a prepolymer of polysiloxane. Homog…
Peculiar xerogels and aerogels constituted by a silica network, made of spherical fully dense silica particles having the same size, are investigated by adsorption of nitrogen at 77.4 K. Comparison of sorption data between materials dried via different methods, gentle drying at room temperature, alcohol supercritical…
X80 pipeline steel is a low carbon, micro-alloyed high-grade steel and a fairly new steel used as pipeline material in worldwide.The material has the huge potential to be used widely for building the oil/gas transmission pipelines in the 21st century because of its high intensity and high toughness.X80 steel has been…
We studied the photoluminescence (PL) of Si nanocrystals (Si-NCs) embedded in SiO2obtained by ion implantation at MeV energy. The Si-NCs are formed at high depth (1-2 μm) inside the SiO2achieving a robust and better protected system. After metal ion implantation (Ag or Au), and a subsequent thermal annealing at 600°C…
A novel three-component composite electrode consisting of a carbon current collector with conductive polymer and silver coating is described here. The composite electrode fabrication strategy is described and the composite electrode is evaluated as a cathode for oxygen reduction in non-aqueous media. This approach is…
H3PW12O40 and CsxH3–xPW12O40 supported on SiO2, MCM-41 and ZrO2 were prepared and applied as solid acid catalysts for the esterification of palm free fatty acid with methanol. The CsxH3–xPW12O40 supported catalysts are resistant to the leaching of Keggin units into the reaction medium.
An unprecedented octahedral {Cd(30)} nanocage supported by twelve pendant-armed tetraacetate macrocyclic ligands was synthesized through the reaction of macrocyclic tetraethyl ester and Cd(OAc)(2)·2H(2)O in a 1 : 2 stoichiometry, where the surface photovoltage and photoluminescent properties have been studied for the…