Materials Literature
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The proton-conductive electrolytes based on composites with various molar ratios were synthesized, and their structural and electrochemical properties were investigated at intermediate temperatures. The interfacial chemical reaction between and took place during the heat-treatment at 220°C, resulting in the formation…
We report on the growth of epitaxial bilayers of the La2∕3Sr1∕3MnO3 (LSMO) half-metallic ferromagnet and the BiFeO3 (BFO) multiferroic, on SrTiO3(001) by pulsed laser deposition. The growth mode of both layers is two dimensional, which results in unit-cell smooth surfaces. We show that both materials keep their proper…
Unsymmetrical functionalization of a discrete alpha-{SiW12O40} Keggin with two heterometallic building blocks, a Cu(II) dimer and a Cu(II) monomer, results in the formation of [{Cu2(O2CMe)2(5,5'-dimethyl-2,2'-bipy)2}{Cu(5,5'-dimethyl-2,2'-bipy)2}SiW12O40] that displays interesting physical properties.
Space charge characteristics under high DC electric field of more than 100 kV/mm in a nano-composite film of the low density polyethylene (LDPE) mixed with a nano-size filler of MgO were studied using a pulsed electro-acoustic (PEA) method. To measure the space charge distribution using the PEA system under the high e…
The optical propagation properties and magnetic polariton behaviors in perforated metal/dielectric layered structures are numerically investigated at near-IR region. A developed three-metal-layer (TML) structure is specially inspected as a simple case. Strong coupling effect of magnetic polariton is discovered in this…
Effect of annealing temperature on microstructure and shape memory characteristics of Ti–22Nb–6Zr(at%) biomedical alloys was investigated by using tensile tests, XRD measurement, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). After severe cold-rolling, the plate was annealed at temperat…
Novel L-valine and L-isoleucine gelators, which have various terminal groups, such as an ester, carboxylic acid and carboxylate as well as different alkyl chain lengths between the terminal group and L-amino acid segment, were synthesized and their organogelation properties were examined in various organic solvents an…
A novel silane bearing a reactive anhydride group was synthesized. Due to its special structure, the direct co-condensation of this synthesized functional silane with TEOS in the presence of different surfactant templates led to ordered mesoporous silicas with different pore sizes and a high density of carboxylic acid…
A large number of drug delivery systems--mostly in the form of liposomes, microspheres, nanoparticles and hydrogels--have been designed to achieve targeted delivery and sustained release of drugs by exploiting the inherent properties of polymers. The size, shape, and surface properties of the polymer are used to modul…
Reliable thermophysical data of Ni-based superalloys are needed for the mathematical modelling of solidification in casting applications. This paper derives equations and procedures to calculate the following properties of these alloys from chemical composition of the alloy: the γ′ phase content, liquidus and solidus…
The oxidation potentials of seventeen molecules used as candidate shuttle additives in Li-ion cells were calculated using density functional theory and compared with experiment. The root-mean-square deviation between the calculated and measured oxidation potentials of these seventeen molecules is with the maximum devi…
The first syntheses of highly ordered bifunctional periodic mesoporous organosilicas (PMOs) containing different amounts of aromatic thiophene and benzene bridging groups are reported. Employing the triblock copolymer Pluronic P123 as well as the oligomeric Brij 76 surfactant under acidic conditions as supramolecular…
Ordered mesoporous silicas, including SBA-15 and related plugged materials, were synthesized under acidic conditions using Pluronic P123 poly(ethylene oxide)–poly(propylene oxide)–poly(ethylene oxide) triblock copolymer (EO20PO70EO20) as a supramolecular template and tetraethyl orthosilicate (TEOS) as a silica precurs…
Solid-state fluorescence enhancement was achieved by preparation of rigid packing that was afforded by disposition of benzylamine into tubulate spaces, serving as a powerful and useful strategy for the enhancement.
A new software GBstudio was developed for generating atomic coordinates in periodic grain boundary models composed two crystals. It was designed for modeling grain boundary structures in various geometries including coincident-site-lattice (CSL), tilt, and twist boundaries in easy and systematic ways. By this software…
This work attempts to enhance platinum utilization in a Pt-based electrocatalyst by the tuned covering of gold nanoparticles with small Pt entities. Reductive deposition of Pt on Au nanoparticles of two size ranges (Au-I: 10 +/- 1.2 nm, Au-II: 3 +/- 0.6 nm) up to different atomic Pt : Au ratios (m) was used to prepare…
We reviewed the recent progress in the left-handed materials with simultaneously negative permittivity and permeability. Attention has been given to the fundamental electromagnetic properties in the left-handed material, metamaterial designs, applications, and homogenization methods.
As-deposited sol-gel derived amorphous tungsten oxide films transform into nanostructured films with an interconnected framework of grains and pores and a dominant triclinic crystalline phase upon annealing at . Transmission electron microscopy and scanning electron microscopy images clearly reveal the annealing-induc…
We have synthesized the mono-ruthenium substituted Keggin-type silicotungstate [SiW(11)O(39)Ru(III)(H(2)O)](5-) (1a) by reaction of the mono-lacunary silicotungstate precursor [SiW(11)O(39)](8-) with Ru(acac)(3) under hydrothermal conditions and isolated as the caesium salt Cs(5)[SiW(11)O(39)Ru(III)(H(2)O)] (1). The D…
A series of N-alkyldithiocarbamato complexes [M(S2CNHR)2] (M=Cd(II), Zn(II); R=C2H5, C4H9, C6H13, C12H25) have been synthesised and characterized. The decomposition of these complexes to sulfates has been investigated, and a mechanism proposed. The structures of [Zn(S2CNHHex)2], [Cd(SO4)2(NC5H5)4)]n and [Cd(SO4)2(NC5H…