Materials Literature
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A supramolecular triad consisting of self-assembled imidazolyl-zinc-porphyrin dimer, ferrocene, and fullerene was successfully constructed, resulting in long-lived charge separated species after efficient photoinduced electron transfer and charge shift reactions.
Anode-supported solid oxide fuel cells were fabricated with (LSC-YSZ) composite cathodes by an infiltration method and evaluated at . Cells with optimized composite cathode layers exhibited power densities of at , peak power densities of , and area-specific resistances of at . The LSC-YSZ composite cathodes were fabri…
RFID tags using organic transistors are described: Two 8b tags carrying different codes, energized and read out at 13.56MHz, the defacto standard for item-level ID, have been tested and demonstrated to enable multiple-object identification for the first time; A 64b tag, the most complex organic transponder reported to…
Abstract Starting from enantiomerically pure 5,10,15,20‐tetrakis[(1 S ,4 R ,5 R ,8 S )‐1,2,3,4,5,6,7,8‐octahydro‐1,4 : 5,8‐dimethanoanthracene‐9‐yl]porphyrin, treatment with CrCl 2 and subsequent air oxidation afforded the corresponding Cr(III) complex, with chloride as counterion, in 96% yield. Anion exchange with Ag…
This paper presents an effective medium approach to calculate the attenuation and phase constants of modes in a 3D connected wire medium both below and above the plasma frequency. Physical and nonphysical modes in the structure are identified for all the important lattice directions. According to this, the medium beha…
Deposition of La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 (LSCF) oxide films on Gd-doped ceria (CGO) substrates by an electrostatic-assisted ultrasonic spray pyrolysis (EAUSP) method was demonstrated for the first time in this work. The electrostatic field employed for directing the aerosol stream toward the substrate was shown t…
In this investigation, a decision-making IIT approach for materials selection has been proposed. This approach consists of three phases which are the preselection, selection, and postselection and techno-economic phases. This approach differs from other approaches in taking into consideration the economic and business…
The effects of surface treatment of paper sludge (PS) with acrylic acid (esterification) and acetic acid (acetylation) on torque, stabilization torque, mechanical properties, water absorption, morphology, and thermal properties of PP/EPDM/PS composites were studied. It was found that esterified and acetylated composit…
A series of liquid crystalline mixtures that exhibit remarkably stable 4-layer intermediate phases, with phase ranges of around 30 °C, are reported. The mixtures are formed from a selenium-containing antiferroelectric material combined with up to 9% (by weight) of a highly chiral dopant. Various experimental methods i…
Polyaniline was synthesized chemically, coated on sawdust via cast method in the form of emeraldine base (EB) from formic acid as solvent, and used as an adsorbent for removal of lead ion or from aqueous solution. The effects of some important chemical and physical factors in removal efficiency have also been investig…
A simple model has been developed (within the framework of the point defect model, PDM) assuming that the impedance response of passivated metals is dominated by the barrier layer, which consists of a partly hydrated and highly defective oxide layer. Simulations were carried out for cation vacancy conducting barrier l…
Abstract For the first time, the use of epoxy resins for the immobilisation of catalytically active metal species is reported. The resins were cured using metal acetylacetonates and alkoxides as polymerisation initiators and the thus obtained thermosets were tested as epoxidation catalysts. Outstanding long‐term catal…
Upon UV irradiation of the hydrogen-bond confined crystal state of a dithienylhexafluorocyclopentene with (R)-N-phenylethylamide substituents, the photochemical cyclization reaction proceeds diastereoselectively to form the coloured, closed-ring isomer with 97% de.
Boron dipyrromethene dyes bearing nitro, amino, isocyanate and isothiocyanate functions were readily prepared under mild conditions. Various combinations allow to produce urea, diurea, thiourea, dithiourea in the 3, 4 and 5-substitution positions of the appended phenyl group. Condensation of the 3,4-substituted diamin…
We designed and analysed a new structure for the realization of left-handed metamaterials in the GHz region. The material is composed of pairs of metallic crosses and reveals improved polarization behaviour. Left-handed properties can be observed as long as the electrical field vector is located in the plane of the cr…
Large thickness is required in holographic recording materials to be used as holographic memories. Photopolymers have proved to be a good alternative to construct holographic memories. Nevertheless, modeling the behavior of thick layers poses some problems due to high absorption of the dye, as discussed in previous pa…
The aim of this study was to examine the feasibility of using a new low-modulus biodegradable thermoplastic elastomer for in vivo application as a stent cover. The new polymer, a thermoplastic elastomer, consists of a three-armed co-polymer of poly(lactide)acid (PLLA), poly(trimethylene carbonate) (PTMC) and poly(capr…
Microstrip antennas with left-handed materials substrates are studied with method of moments. Discrete complex image method is extended to the computation of Green's function in microstrip circuits with left-handed materials substrates. It's shown that this new kind of antennas will get similar radiation patterns to t…
A numerical model using a modified front tracking technique has been developed to simulate dendrite growth during the solidification of binary alloys. Diffusion in liquid and solid, mass conservation at the solid/liquid interface and local equilibrium at the solid/liquid interface with consideration of curvature under…
PVP-capped silver spherical nanoparticles and nanorods serve as active catalysts for the polymerization of alkylsilane C18H37SiH3 with water, to form flower petal-like composite siloxane microspheres.