Materials Literature
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Length dependence of the thermal conductivity of （5, 5） carbon nanotube at 300 K and 1000 K is studied by nonequilibrium molecular dynamics simulations. At room temperature the thermal conductivity shows linear length dependence for the tube length less than 40 nm, which shows completely ballistic transport. The calcu…
A novel time-reversal symmetry breaking state is found theoretically in the Josephson junction between the two-gap superconductor and the conventional s-wave superconductor. This occurs due to the frustration between the three order parameters analogous to the two antiferromagnetically coupled XY-spins put under a mag…
By using both bipyridyl and acyclic amine ligands, two extended inorganic–organic hybrids based on ε-Keggin type of molybdogermanate capped with four nickel(II)-organic cations, [GeMoV8MoVI4O36(µ2-OH)4{Ni(pda)(H2O)}2{Ni(pda)}{Ni(pda)(bpe)}(bpe)0.5]n (1) and [GeMoV8MoVI4O36(µ2-OH)4{Ni(pda)}2{Ni(pda)(bpy)0.5}{Ni(pda)(bp…
Interpenetrating networks (IPN) consist of two or more networks of different components which are entangled on a molecular scale and cannot be separated without breaking at least one of the networks. They are of great technological interest because they allow the blending of two or more otherwise incompatible properti…
Reaction of [(PY5Me2)V(MeCN)]2+ with [M(CN)6]3- (M = Cr, Mo) affords the star-like clusters [(PY5Me2)4V4M(CN)6]5+, exhibiting S = 9/2 ground states that are exceptionally well-isolated in energy.
Plasma-treated multi-walled carbon nanotubes (MWCNTs) have been used as a substrate for the deposition of Pt nanoparticles. These Pt nanoparticles deposited on MWCNTs showed a higher catalytic activity in a methanol electro-oxidation reaction even with a lower amount of precious metal catalyst used. The higher catalyt…
BACKGROUND: Previous attempts in heart valve tissue engineering (TE) failed to produce autologous valve replacements with native-like mechanical behavior to allow for systemic pressure applications. Because hypoxia and insulin are known to promote protein synthesis by adaptive cellular responses, a physiologically rel…
We demonstrate that two mechanisms of lamellae reorientation observed experimentally under applied electric field [A. Böker H. Elbs, H. Hänsel, A. Knoll, S. Ludwigs, H. Zettl, V. Urban, V. Abetz, A. H. E. Müller and G. Krausch, Phys. Rev. Lett., 2002, 89, 135502] which have been previously described within dynamic sel…
Fe-Co bimetallic catalysts supported on CaCO 3 were prepared by a wet impregnation, a deposition-precipitation and a reverse micelle method. The sizes of the Fe and Co particles were not affected by the Fe and Co sources (nitrate, acetate) when the wet impregnation and deposition-precipitation methods were used. ‘Clea…
A study of the reactions of several salicylaldimines (ortho-iminophenols) with Sn(NMe2)2 reveals that the sterics and electronics of the N-substituent play a principal role in determining the product mixture. Thus mono(chelate) tin(II) amides have only been isolated with bulky N-anilido substituents, including [2,4-X2…
Bare cadmium sulfide (CdS) nanocrystals were successfully synthesized by the thermolysis of a single‐source organometallic precursor, cadmium chloride hemipentahydrate (CdCl 2 · 2.5H 2 O) with thiourea in ethanol. The microstructure of the CdS samples was characterized using XRD, TEM, and Raman spectroscopy. The XRD′s…
At temperatures below 5 K the field dependence of the magnetization of the pi-stacked bis-dithiazolyl radical 1 (R(1) = Me, R(2) = H) is consistent with metamagnetic behavior.
We report the results of density functional theory calculations on nanostructures of SiC, including single clusters, cluster dimers, and nanoporous cluster frameworks. Our results show that at the nanoscale, there is significant charge transfer of 2.5|e| from Si to C atoms, which results in the adoption of the same st…
Two light-driven molecular switches with tetrahedral and axial chirality were synthesized, which can induce a helical superstructure in an achiral liquid crystal host and dynamically phototune it to achieve reversible reflection color.
Despite recent advances in the application of discotic liquid crystals (DLC) in organic electronic devices a better understanding of structure–property relationships is required for designing commercially viable discotic semiconductors. This is a complex task because a single structural change to the DLC may affect ma…
We have designed and synthesized self-assembled one-dimensional nanowires (1D NWs) from the fused thiophene derivative 2,3-bis(5-(3,5-bis(trifluoromethyl)phenyl)thiophen-2-yl)acrylonitrile (SS-TFMBE). This new material is characterized by a strong self-assembling capability that leads to the formation of 1D NWs exhibi…
DNA and DNA superstructures were transcribed into pore-structure-tunable mesoporous silicas via the electrostatic interaction between the negatively charged phosphate groups of DNA backbones and the positively charged quaternary ammonium groups of a co-structure directing agent (CSDA).
A novel family of homodinuclear complexes of the general formula [Ln(2)L(2)(X)(2)] (where Ln = Nd(3+), Pr(3+), Sm(3+) and Tb(3+) for 1, 2, 3 and 4, respectively and X, the coordinated NO(3)(-) or Cl(-) anion) has been synthesised from the corresponding lanthanide(III) salts with the pentadentate dianionic Schiff base…
Mg96Zn2Y2 alloy with a long period stacking ordered (LPSO) phase was produced by extrusion, and the effects of annealing on its microstructure and mechanical properties were investigated. Annealing at temperatures up to 623 K improved the elongation of the alloy from 5.4 to 9.6% but caused no changes in yield stress a…
A three-dimensional porous vanadium oxide was anodically deposited onto graphite substrates (denoted as ) at 0.7 V from an aqueous solution containing 25 mM and 5 mM . Through annealing at temperatures up to , the thermal stability of preserved its porous morphology and excellent capacitive performances in 3 M KCl (pH…