Materials Literature
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A nanostructured spinel-type oxide catalyst (CoCr2O4) prepared by solution combustion synthesis was developed and deposited over a SiC wall-flow trap for diesel particulate removal. Bench tests proved that, after soot loading, the developed trap enables a faster and more complete regeneration at 550 degrees C than a c…
The nonlinear optical single crystals of L-Lysine monohydrochloride dihydrate (L-LMHCl) have been grown and examined by High-resolution X-ray diffraction and etching studies for their perfection. The vibrational frequencies have been identified by the micro-Raman studies and the dielectric behaviour has been studied a…
We report a study on the mechanical properties of lamellae-forming glassy−semicrystalline block copolymers composed of poly(cyclohexylethylene) (C) and polyethylene (E). Tensile properties of polydomain CEC, ECEC, CECEC, and ECECE block copolymers, and blends of these materials, reveal a critical dependence on the con…
Nanocrystalline Y 2 O 3 :Eu phosphors have been successfully synthesized by a novel combustion method using sucrose as a chelating agent and fuel. The sucrose hydrolysation and complexing mechanisms are discussed. X-ray diffraction analysis showed that the cubic phase can be formed at a low temperature of 400 °C, and…
Abstract A series of inert and photostable encapsulated lanthanide(III) complexes—based on dendritic anthracene ligands—is shown for the first time to exhibit strong near‐IR emission bands via efficient energy transfer from the excited states of the peripheral antenna to the Ln 3+ ions (Er 3+ , Yb 3+ , and Nd 3+ ). A…
A Hartree-Fock based (HF), multiconfiguration self-consistent field (MCSCF) method has been used to configure computationally several nonstoichiometric model pyramidal molecules of In, Ga, and As atoms with a predesigned electronic energy level structure. The geometry, structure, and composition of the molecules have…
The nonuniformity of pore size and pore distribution of the current hemodialysis membrane results in low efficiency of uremic solute removal as well as the loss of albumin. By using nanotechnology, an anodic alumina membrane (ceramic membrane) with self-organized nanopore structure was produced. The objective of this…
We have proposed a new concept for solid insulation; an application of FGM (functionally graded materials). By controlling the distribution of dielectric permittivity inside solid insulators, we can achieve the efficient field control with keeping simple configuration of solid insulators. In this paper, we described a…
Abstract In this study, morphology, and dynamic and mechanical properties of polypropylene–mica (PP–Mica) composites were investigated. To enhance the adhesion between PP and mica, maleic anhydride‐grafted PP (MAPP) and treated mica with silane coupling agent were used. MAPP (as a compatibilizer) and silane coupling a…
The initial use of di-2-pyridyl ketone oxime [(py)2CNOH] in iron(III) carboxylate chemistry has yielded the tetranuclear complex [Fe4O2Cl2(O2CMe)2{(py)2CNO}4] (1). Compound 1 can be synthesized either by the 1:2:1 molar ratio reaction between Fe(III), MeCO2-, and (py)2CNOH (complex 1a) or by the 1:3 molar ratio reacti…
Noise has been a major limitation to partial discharge (PD) measurement. It is crucial to suppress noise prior to any PD data analysis. Recent research shows that the discrete wavelet transform, wavelet packet transform and stationary wavelet transform techniques have all achieved good effect in noise rejection in PD…
A series of polyurethanes with novel copolymer soft blocks display a new surface phenomenon, contraphilic wetting, in which the dry surface is hydrophilic and the wetted surface is hydrophobic. A precursor polymer was prepared with copolymer soft blocks containing semifluorinated (trifluoroethoxy, 3FOx, or pentafluoro…
The reaction of [(mu3,mu3-EDBP)Li2]2[(mu3-nBu)Li(0.5Et2O)]2 (1) [EDBP-H2 = 2,2'-ethylidenebis(4,6-di-tert-butylphenol)] with 1 equiv of ROH in toluene gave [(mu3,mu3-EDBP)Li2]2[(mu3-OR)Li]2 [R = Bn (2), CH2CH2OEt (3), and nBu (4)]. In the presence of 3 equiv of tetrahydrofuran (THF), the hexanuclear compound 1 slowly…
State-of-the-art generalized gradient approximation (GGA) (PBE, OPBE, RPBE, OLYP, and HCTH), meta-GGA (VSXC and TPSS), and hybrid (B3LYP, B3LYP*, O3LYP, and PBE0) functionals are compared for the determination of the structure and the energetics of the D3 [Co(bpy)3](2+) complex in the (4)A2 and (4)E trigonal component…
A novel approach for the synthesis of cobalt-doped ZnO single-crystalline nanorods based on a wet chemical reaction has been developed. The as-doped ZnO nanorods have a length between 0.3 and 0.6 µm and a diameter between 30 and 60 nm. Structure and composition analyses indicate that the cobalt is incorporated into th…
Dye-infiltrated polymer nanotubes are constructed via a simple vapor deposition polymerization process (see figure). 1D poly(methyl methacrylate) (PMMA) nanofibers doped with two dyes with significant spectral overlap between the donor and the acceptor display special fluorescence resonance energy transfer (FRET) prop…
Zinc oxide thin films have been prepared on different substrates by the sol-gel method using 2-methoxyethanol solution of zinc acetate dihydrate stabilized by monoethanolamine. The photoluminescence spectra of the films show the band-edge and sub-band transitions. The intensity of the band edge emission peak increases…
Abstract A polyoxometalate‐modified titania hybrid electrode with a tailored microstructure is studied for its photoelectrochemical applications. A highly ordered TiO 2 nanotube array is prepared by low‐voltage anodization followed by calcination. Functionalized polyoxophosphotungstate–titania/titanium (POW–TiO 2 /Ti)…
The aim of this study was to demonstrate the feasibility of in vivo cell tracking to monitor anticancer cell therapy by means of a high-resolution noninvasive MRI method. Ovalbumin-specific splenocytes (OT-1) labeled with anionic gamma-Fe2O3 superparamagnetic iron oxide (SPIO) nanoparticles were adoptively transferred…
Molecular dynamics (MD) simulations of β-Ni(OH) 2, α-Ni(OH) 2, and Ni/Al-layered double hydroxides (LDHs) have been performed in order to study structures and binding energies of the materials containing various anions such as CO 3 2 -, SO 4 2 -, OH -, F -, Cl -, Br -, and NO 3 - . We propose a modified force field of…