Materials Literature
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Abstract The efficiency of Acacia cyanophylla leaves extract as an environmentally friendly inhibitor for mild steel in aerated aqueous 1 M H 2 SO 4 solution has been investigated by potentiodynamic polarization measurements and electrochemical impedance spectroscopy techniques. Addition of inhibitor decreases the cor…
Mg-Ti-H thin films exhibit interesting optical and electrical properties, offering a wide range of possible applications from coatings on solar collectors and smart windows to optical hydrogen sensors and semiconductor devices. However, Ti is known to be immiscible in Mg, and the microstructure of Mg-Ti thin films is…
We investigated the dynamics near the liquid-vapor interface of the supercooled model organic glass former dibutyl phthalate by using surface-sensitive x-ray scattering techniques. Our results reveal significant enhancement of the relaxation rate over a wide length-scales range. The analysis of the dispersion relation…
Here we report a novel biomimetic gel that efficiently converts photoenergy and the water inside into H(2). By immobilizing a photosensitizer into the polymer network, the gel system involving an electronic transmission circuit generates H(2) with a high quantum efficiency of over 10%, significantly higher than the co…
The high aspect ratio of carbon nanotubes makes them prone to bending. To know how bending affects the tubes is therefore crucial for tube identification and for electrical component design. Very few studies, however, have investigated tubes under small bending well below the buckling limit, because of technical probl…
A facile synthetic route to a new polycyclic pyrrole derivative, 3,8-diethyl-1,10-dihydro-benzo[e]pyrrolo[3,2-g]indole (1), is reported. This annulated bipyrrole acts as a monomer for electropolymerization and forms an electrochromic conducting polymer (poly1) when electrooxidized at low potentials (0.4 V vs Ag/Ag(+))…
The solid insulations of electrical equipment are perpetually affected by various duration overvoltages and overcurrents. Depending on its duration, the overvoltage event can be transient—a voltage spike, or permanent, leading to a power surge. They all directly affect the insulation. Electric stress of insulation dep…
The effect of a hole transport layer on the photoelectrochemical responses from an organic solar cell consisting of a composite polymer film of 5,10,15,20-tetra(3-thienyl)-21 H ,23 H -porphyrin and polythiophene was investigated. The polyalkylthiophene layer that was inserted between the above-described photoactive po…
Abstract A new method of toughening polymerized cyclic butylene terephthalate (pCBT) with tetrahydrofuran (THF) is proposed. The pCBT was prepared by in situ ring‐opening polymerization of a commercial cyclic butylene terephthalate, a cyclic form of poly(butylene terephthalate), in the presence of THF. In comparison t…
Abstract The hydrogen storage properties of a Li‐Mg‐N‐H material doped by a 4 mol.% Ti 3 Cr 3 V 4 body centre cubic (BCC) alloy hydride and prepared with a ball‐milling method were investigated by X‐ray diffraction, scanning electron microscopy, transmission electron microscopy and Sievert’s technology test. The resul…
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Flat-pressed composites using linear low-density polyethylene (LLDPE) and rapeseed waste were made by hot pressing. This study investigated the effects of filler loading on the flexural and physical properties of rapeseed-filled thermoplastic polymer composite panels. The modulus of elasticity and flexural strength we…
Reaction of H(3)L(1), the Schiff base condensate of tris(2-aminoethyl)amine with three equivalents of 5-methyl-1H-pyrazole-3-carboxaldehyde, with manganese(II)perchlorate or iron(II)tetrafluoroborate results in the isolation of [MH(3)L(1)]X(2) (M = Mn and X = ClO(4) and M = Fe and X = BF(4)). These complexes are high…
A series of novel supramolecular complexes composed of a three-point binding C(60)-trispyridylporphyrin dyad (1) or C(70)-trispyridylporphyrin dyad (2) and zinc tetraphenylporphyrin (ZnP) were constructed by adopting a "covalent-coordinate" bonding approach, composed of three-point binding. The dyads and self-assemble…
Dynamic mechanical analysis (DMA) is used to investigate the effect of alkyl side chain length on the relaxation behavior of poly(n-alkyl acrylates) (PnAA) and poly(n-alkyl methacrylates) (PnAMA) above the glass transition temperature (Tg). Master curves and shift factors (log aT) were obtained using the time–temperat…
We report a giant magnetic moment enhancement of ferromagnetic nickel nanoparticles (11 nm) embedded in multiwalled carbon nanotubes (MWCNTs). High-energy synchrotron x-ray diffraction experiment and chemical analysis are used to accurately determine the ferromagnetic nickel concentration. Magnetic measurements show t…
Efficient DNA intercalators comprising naphthalene diimide grafted with ethylenedioxythiophene monomer were successfully designed, synthesized and applied to mediate/promote conducting polymer growth electrochemically on biosensor electrodes for direct and amplified DNA detection.
We report the electrical control of magnetization in multiferroic LuFe2O4 by applying short current pulses. The magnitude of the induced magnetization change depends on the pulse width and current density. The voltage variation during the applied current pulses evidences an electric-field-induced breakdown of charge o…
Significant progress in theoretical and computational techniques for predicting stable crystal structures has recently begun to stimulate targeted synthesis of such predicted structures. Using a global space-group optimization (GSGO) approach that locates ground-state structures and stable stoichiometries from first-p…
CryoTEM demonstrates that a CNA35-bearing liposomal MRI contrast agent selectively binds to poorly assembled collagen type I as opposed to well-assembled collagen fibrils, whereas monomeric CNA35 binds to all forms of collagen. It is shown that upon conjugation to liposomes and micelles CNA35 loses its ability to diss…