Materials Literature
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The growth of nanotechnology has led to an unprecedented research and development effort in both the public and the private sectors; world wide, an increasing number of laboratories, fabrication and manufacturing plants develop or apply novel nanometre-sized materials for applications ranging from large-scale industri…
The first compound with a Mn(IV)-I bond has successfully been prepared by oxidation of a manganese(iii) corrole with molecular iodine and was structurally characterized by X-ray diffraction.
Large planar assemblies of nanoscale protein building blocks can serve as templates for the nanopatterning of inorganic materials. Organically coated quantum dots and gold nanoparticles have been electrostatically adsorbed onto naturally occurring protein lattices to produce highly regular arrays. Engineered protein l…
A θ-phase organic charge-transfer salt shows giant nonlinear conductivity and works like a two-terminal electronic device to generate alternating current; this is called an organic thyristor. The nonlinear conductivity is ascribed to the melting of competing charge order patterns, where the so-called three-fold patter…
The over-expression of sialic acid on the surface of cancer cells compared with normal ones makes this nine-carbon sugar an attractive biomarker for molecular diagnosis and therapy. Here, we describe a study on the molecular recognition of sialic acid end groups on the surface of human glioma cells by (160)Tb-DTPA-EN(…
Atomic layer deposition of ferroelectric PbTiO 3 (PTO) thin films was attempted using lead bis(3-N,N-dimethyl-2-methyl-2-propanoxide) and titanium tetra(tert-butoxide) as Pb and Ti precursors, respectively, and H 2 O as the oxidant at a wafer temperature of 200°C on Ir ∕ IrO 2 ∕ SiO 2 ∕ Si substrates. Cation stoichiom…
Five novel ReIV-MII bimetallic complexes of formula [ReCl4(mu-mal)M(dmphen)2].MeCN [M = Co (1), Fe (2) and Ni (3)], [ReCl4(mu-mal)Ni(dmphen)(MeCN)2(H2O)].(MeCN)0.5(H2O)0.5 (4), and [ReCl4(mu-mal)Mn(dmphen)(H2O)2].dmphen.MeCN.H2O (5) (mal = malonate dianion, dmphen = 2,9-dimethyl-1,10-phenanthroline) have been synthesi…
In general, metal structures display a strong rate and temperature dependence when deformed nonuniformly into the inelastic range. This effect has important implications for an increasing number of applications in structural and engineering mechanics. The mechanical behavior of these applications cannot be characteriz…
The crystal and electronic structures, as well as the luminescence properties of Sr2Al2–xSi1+xO7–xNx:Eu2+ are reported. First-principles calculations energetically confirm that the Al and Si atoms are in partial ordering in the 2a and 4e sites in Sr2Al2SiO7. In addition, the band structure calculation shows that Sr2Al…
A thermodynamic analysis of the Ti-H and Zr-H binary system has been performed by combining first-principles calculations with the CALPHAD approach. In order to compensate for the lack of experimental information available, the formation energies of the hydrides and solid solution phases were evaluated in the ground s…
The inhibition of copper corrosion in 3% NaCl solution in the absence and presence of an organic inhibitor was studied by using different electrochemical techniques, i.e. cyclic voltammetry, linear polarization, Tafel plots and potentiodynamic curves on bulk Cu electrode. Two organic inhibitors were investigated (3-am…
The effect of SrO in improving the grain-boundary conduction in gadolinia-doped ceria (GDC) was examined by measuring the spatially resolved local impedance of a SrO-in-diffused GDC specimen containing of . The addition of SrO increased the grain-boundary conduction by up to times, indicating that SrO effectively miti…
This paper reports, for the first time, on thin-film piezoelectric-on-diamond composite bulk acoustic resonators. These resonators benefit from the large elastic modulus of the nano-crystalline diamond to increase the resonance frequency, and the high electromechanical coupling of the piezoelectric transduction to red…
In recent years, tool manufacturers provide wiper geometry on cutting tools for turning applications with the purpose of increasing productivity and improving surface finish. Despite the potential added values, the use and study on wiper inserts are still lacking in quantity. This current study focuses on the performa…
Single-crystalline RuO2 nanowires were grown by using a thermal evaporation method. A control of the sizes (width and length) and the length-to-width ratio of the nanowires were achieved by tuning the growth time. A transmission electron microscope–scanning tunneling microscope technique invoking one-nanocontact elect…
A two-dimensional simulation was developed for thin-film, mixed ionic-electronic conductor (MIEC) electrodes. The equations for the steady-state (nonlinear) dc case are derived and solved through a finite volume discretization that enables a linear solver while preserving the nonlinear characteristics of the problem.…
Ultrasonic spectroscopy is used to characterize a model aerated food system consisting of agar gel in which both bubbles and polystyrene beads are embedded. By exploiting the distinct frequency dependence of each inclusion's acoustic resonances, it is demonstrated that the sizes of the bubbles and beads can be measure…
The crystallization and precipitation of TiN in an Fe–1.5%Mn–0.05(0.15)%C–0.1%Ti alloy with and without Mg deoxidation have been studied as a function of N (20–130 ppm) and Si (0, 0.5 and 1.1%) contents. The size distribution of TiN particles in the sample of 0.05% C with no Mg deoxidation is bimodal and that in the s…
Density functional theory calculations were carried out to investigate the reaction mechanism of selective catalytic reduction of nitrogen oxides by ammonia in the presence of oxygen at the Brønsted acid sites of H-form zeolites. The Brønsted acid site of H-form zeolites was modeled by an aluminosilicate cluster conta…
Two series of dendritic compounds functionalized at the periphery with polyoxometalate (POM) units were synthesized using two synthetic strategies. The first series involved the [CpFe]+-induced functionalization of polymethylarenes, leading to dendrimers in which the dendronic tripod is directly bonded to the arene co…