Materials Literature
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A nanoscale slipped sandwich of Tb(10) is formed from the reaction of 5-bromo-3-methoxysalicylaldehyde (HL) with TbCl(3)x6H(2)O and Zn(OAc)(2)x2H(2)O. The compound also features an unusual example of a coordinated methylhemiacetal which is derived from HL.
Many useful physical and chemical properties of polymer materials can be damaged in the presence of radiation such as UV light, γ-irradiation and electron beams. To seek a good way to solve these problems, clay was introduced into the tri-block copolymer styrene–butadiene–styrene (SBS) matrix to form SBS/clay nanocomp…
A simple and rapid LC‐MS/MS method for simultaneous quantification of a mixture of the antineoplastic agent doxorubicin (Dox) and selected emesis suppressants, namely, lorazepam (Lor), metoclopramide (Met), ondansetron (Ond), and ranitidine (Ran), was developed. 4‐Phenyl‐4‐aminobutanoic acid was used as the internal s…
Crystallizations of manganese-tetra(4-carboxyphenyl)porphyrin chloride from different reaction environments led to the formation of new extended polymeric architectures sustained either by cooperative hydrogen-bonding or by self-coordination of the porphyrin units. In one mode the manganese ion in the metalloporphyrin…
The synthesis, characterization and mesomorphic properties of a new type of discotic liquid crystalline dimer bearing an electron-rich triphenylene discotic connected to an electron-deficient anthraquinone discotic via an alkyl chain spacer are reported. This donor-sigma-acceptor type molecule displays a columnar meso…
The primary sequences of human and mouse tuftelin are 89% identical. Both proteins comprise 390 amino acids and produce an acidic protein with an isoelectric point of 5.7, and an unmodified molecular weight of 44 kD. Using fluorescent-tagged tuftelin and amelogenin plasmid constructs we saw little evidence that these…
An anode micro model of a solid oxide fuel cell (SOFC) is presented, which was improved from that previously developed [ J. Electrochem. Soc. , 148 , A388 (2001)]. The model takes into account all possible polarizations, governing the complex interdependency among the transport phenomena, electrochemical reaction, and…
Polyoxometallates (POM), i.e., metal oxide clusters of mainly tungsten are effective homogeneous photocatalysts for the mineralization of organic pollutants. POM are, at least, as effective as the well studied TiO 2 . OH ⋅ radicals formed by the reaction of the photo‐excited polyoxometallates with H 2 O, appear to pla…
It was shown theoretically and experimentally that a metamaterial composed of periodically positioned split ring resonators (SRR) can lead to a negative effective permeability μeff close to its resonance frequency. In this paper, the nearest neighbor interactions between hexagon SRR were investigated in experiment. Th…
Fourier transform mid-IR and Raman spectroscopies were employed to investigate the anionic local surrounding in sol–gel derived organic/inorganic materials–monourethanesils–incorporating europium triflate, Eu(CF3SO3)3. The hybrid framework of these xerogels contains short methyl end capped polyether segments grafted t…
A blanket tritium recovery system that uses an electrochemical hydrogen pump with a protonic conductor membrane is proposed. One of the advantages of this system is the potential for processing the blanket sweep gas without fractionation of hydrogen isotopes and water vapor. In this work, hydrogen in a water molecule…
A simple method to fabricate parallel and/or crossed networks of ultra-long single-walled carbon nanotube (SWNT) arrays based on carbon monoxide-chemical vapor deposition (CO-CVD) by a “fast-heating” growth process is reported. The catalysts which are water-soluble inorganic molecular clusters containing Fe and Mo ato…
Star polymers consisting of poly(ϵ‐caprolactone), (PCL), grafted onto third generation dendrimer, which had hyperbranched and dendron cores, were studied by polarized light microscopy together with reference linear PCL. The degree of polymerization of the PCL arms in the star polymers ranged between 14 and 81. The sta…
Recently, many nanostructures have been prepared successfully through electrodeposition of materials into anodic porous alumina coated with a conductive layer on the bottom. Here, the fabrication of Ni nanostructures using anodic porous alumina on Si as a template without a conductive interlayer is investigated. Morph…
DsC and DsCO are calculated to be very similar to PtC and PtCO, suggesting that even the latest 6d elements resemble the corresponding 5d elements chemically.
In this study, the effect of material properties on deformation pattern and strain distribution of the commercially-available pure titanium (CP-Ti) specimen during an equal channel angular extrusion (ECAE) was investigated. Finite element analyses were carried out for two-dimensional plane strain condition at elevated…
The concentration of alpha-oxygen which can oxidize methane to methanol and benzene to phenol at RT, increases linearly with the amount of introduced extraframework Al on Fe/ZSM-5 catalysts prepared by solid-state exchange of FeCl3 and AlCl3 with H-ZSM-5.
Three types of Cu+ sites are distinguished from the analysis of TPD spectra of CO in high-silica zeolites and the details about the structure and coordination of Cu+ at these sites are obtained from calculations.
We present a brief overview of the first-row transition metal phyllosilicates and their organically functionalised analogues obtained under autogenous pressure conditions. Some structural features of phyllosilicates are first recalled and the magnetic properties of Co2+ and Ni2+ phyllosilicates are described. In the s…
Abstract Following the synthesis of pure [H 4 PW 18 O 62 ] 7− (PW 18 ), its derivatives monosubstituted with M (M = Mo VI , V IV , V V , Mn II , Fe III , Co II , Ni II Cu II and Zn II ) were obtained. All compounds were characterized by elemental analysis, IR, UV/visible and 31 P NMR spectroscopy. Their cyclic voltamm…