Materials Literature
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Martensitic and magnetic properties of Ni33.0Co13.4Mn39.7Ga13.9 metamagnetic shape memory alloy were investigated. The kinetic arrest phenomenon was observed at about 120 K by thermomagnetization measurements, and magnetic field-induced transformation (MFIT) was also detected at various temperatures ranging from 4.2 t…
This work presents the preparation and characterization of compression‐moulded montmorillonite and carbon nanofibre‐polypropylene foams. The influence of these nanofillers on the foaming behaviour was analyzed in terms of the foaming parameters and final cellular structure and morphology of the foams. Both nanofillers…
Ca(BH(4))(2)-LiNH(2) combined system is shown to release hydrogen at much lower temperature compared to the pure Ca(BH(4))(2). The improved dehydrogenation in this system can be ascribed to a combination reaction between [BH(4)] and [NH(2)] based on the reaction mechanism of positive H and negative H.
In this paper, we survey a number of existing geometric structures which have been proposed by the authors as possible models for various nanotubes. Atoms assemble into molecules following the laws of quantum mechanics, and in general computational approaches to predicting the molecular structure can be arduous and in…
A relatively simple and effective route has been developed for the synthesis of mesoporous titania with a high mesopore ordering and thermal stability in short synthetic period (3 days). Mesoporous TiO2 has been synthesized by a surfactant templating process that combined the evaporation-induced self-assembly method,…
This contribution reports about an in situ FT-IR investigation and the catalytic reactivity of Mg/Me(3+) mixed oxides (Me = Cr, Fe, or Al; Mg/Me = 2, atomic ratio) in the gas-phase methylation of phenol with methanol. It is the second of two papers concerning the mentioned systems, and its purpose is twofold: to confu…
An enhanced scheme of a functional composite material has been proposed and tested in the model experiments. The composite consists of an element with shape memory effect (SME) in the form of ribbon, film or plate connected rigidly to an element of an elastic material. The novel feature in this scheme is that an SME e…
Photoinduced vitrification was observed to take place near the surfaces of the single crystals of azobenzene-based molecular materials with glass-forming ability. The phenomenon was caused by repetition of the trans-cis and cis-trans isomerization reactions and hence can be regarded as a kind of photomechanical effect.
White light emission is generated by combining the blue and red emissions of and , respectively, and by adding the co-doping element in a single host lattice of . The effect of concentration on the emission intensity of is studied, and the emission intensity reaches a maximum at 1% . Energy migration over sites occurs…
The corrosion inhibition effect of acid extract of the pericarp of the fruit Garcinia mangostana on mild steel in hydrochloric acid medium is studied. Using weight-loss data, corrosion rate (CR) and thermodynamic parameters such as energy of activation for corrosion of mild steel (E), heat of adsorption of the inhibit…
This study examined the effects of wood pulp fiber length (short, medium, and long), and fiber loading (27%, 37%, 47%, and 0% [non-reinforced PP]) with 3% maleic anhydride-grafted polypropylene on the mechanical properties of wood-plastic composites (WPCs). Polypropylene and fibers were compounded into pellets using a…
Cellulose nanofibers or “whiskers” derived from tunicates were coated with PEDOT:PSS to produce high-aspect-ratio nanorods with high electrical conductivity. Films made from these PEDOT:PSS whiskers have surface resistivities as low as 97 Ω/□. The nanorods were found to disperse well in polar organic solvents such as…
Before uniform nanoporous structure can be achieved through chemical dealloying of dual-phase Al–Cu alloy with 35 atom % Cu in a hydrochloric acid (HCl) or sodium hydroxide (NaOH) aqueous solution under free corrosion conditions, microstructure evolution of the alloy during dealloying process in each solution is inves…
Magnetic Fe-SBA-15 mesoporous silica molecular sieves were prepared, characterized, and used for magnetic separation. Wet impregnation, drying, and calcination steps led to iron inclusion within the mesopores. Iron oxide was reduced to the metal form with hydrogen, and the magnetic Fe-SBA-15 was obtained. Fourier-tran…
Novel near-infrared (NIR) luminescent copolymerized hybrid materials were prepared by covalently grafting and physically doping Ln complexes (Ln = Er, Sm, Yb, and Nd) into a copolymer matrix built from nanobuilding blocks. The structures of the obtained hybrid materials were investigated by Fourier transform infrared…
States of NO(2) adsorption and kinetics of NO(2) desorption over a Fe-loaded ZSM-5 type zeolite were investigated using Fourier transform infrared (FT-IR) spectroscopy and temperature-programmed desorption (TPD). The FT-IR spectra in NO(2)/N(2) flows showed that several adsorption species (NO(2), nitrite, nitrate, and…
The new ligand 6,6''-bis(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-1,2,4-benzotriazin-3-yl)-2,2':6',2''-terpyridine (CyMe4-BTTP) has been synthesized in 4 steps from 2,2':6',2''-terpyridine. Detailed NMR and mass spectrometry studies indicate that the ligand forms 1:2 complexes with lanthanide(III) perchlorates where the…
In this work, we report on the formation of highly aligned nanoporous or nanotubular oxide structures by anodization of Ti–Ta alloys in containing ethylene glycol electrolytes. We show that depending on the anodization conditions, either a hexagonally self-organized nanoporous layer or a nanotube array can be formed.…
Electronic Raman scattering is observed here in the silicon nanostructures. Observation of electronic Raman scattering in low dimensional silicon is possible due to coupling of Raman active phonons with photoexcited electrons found in the electronic states, which are available as a result of quantum confinement effect…
The synthesis and characterization of the extended phloroglucinol-ligand H(3)felden based on the trialdehyde 2,4,6-triformylphloroglucinol and its trinuclear Cu(II)(3) complex [(felden){Cu(bpy)}(3)](ClO(4))(3) is presented. This study is motivated to optimize analogous extended phloroglucinol-ligands based on the trik…