Materials Literature
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Volatile organic compounds (VOCs) are often comingled with low-level radioactive wastes (LLRW), but little is known about subsurface VOC emanations from LLRW landfills. The current study systematically quantified VOCs associated with LLRW over an 11-yr period at the USGS Amargosa Desert Research Site (ADRS) in southwe…
Neurological diseases, such as cancers, neurodegenerative conditions, infections, pain and psychiatric disorders, are a leading cause of disability, morbidity and mortality. At any time 1.5 billion people worldwide are suffering from some form of central nervous system disorder, with this number pre...
Nanosized titanium dioxides were synthesized by hydrolysis of TiCl(4) followed by calcination at different temperatures ranging from 300 to 1,000 °C. The as-prepared samples were characterized by X-ray diffraction, N(2) adsorption-desorption, and zeta potential analysis. The catalytic activities of the TiO(2) nanopart…
Silver nanorods with ∼100 nm in diameter and ∼5 µm in length were synthesised by the soft solution-phase approach in the presence of poly(vinylpyrrolidone) (PVP), which was employed as a protecting agent. The obtained silver nanorods were characterised by means of scanning electron microscopy (SEM), transmission elect…
The thermal conductivity of a liquid is generally measured under conditions that suppress bulk flow in the sample. However, in situ measurement of the thermal conductivity of a flowing liquid would be useful in various scientific and engineering applications. This work demonstrates that a thermal wave technique, such…
Abstract The selective hydroxylation of cyclohexene to 2-cyclohexen-1-ol with hydrogen peroxide in water was successfully achieved using [Fe(bpy)3]2+ complexes encapsulated into Y-type zeolite.
Abstract The purpose of the paper is to study the influence of molecular architecture of poly(ethylene terephthalate) (PET) on its ability to be processed by stretch-blow molding, which is not well documented in the literature. To evaluate this process ability, it proposes an original strategy combining laboratory ana…
Melting of the simple monatomic amorphous spherical nanoparticles has been studied via molecular dynamics (MD) simulation. Initial amorphous nanoparticles have been heated toward a normal liquid state to study a melting process with Lennard-Jones–Gauss interatomic potential [Engel, M.; Trebin, H.-R. Phys. Rev. Lett .…
Fully hydrolyzed polyvinyl alcohol (FH-PVA) electrospun fibers with uniform diameters of less than 200 nm were fabricated by reducing the viscosity of FH-PVA aqueous solutions. A novel viscosity-modifier (hydrazine monochloride [HMC]) gradually reduced the viscosity of FH-PVA aqueous solution over a period of several…
Purpose The purpose of this paper is to formulate two component polyurethane coatings based on acrylic polyol, to study the effects of variable nanosilica loadings in these coatings on different morphological, optical, mechanical, corrosion resistance and weather resistance properties and to study the intercalation of…
We have deposited silicon/nitrogen-coincorporated diamond-like carbon (Si–N–DLC) films by radio-frequency plasma-enhanced chemical vapor deposition using hexamethyldisilazane (HMDS) as the Si and N source, and investigated the structure, chemical bonding, and the mechanical and tribological properties of the films. We…
Despite the fact that the first nanocarriers described in the literature were discovered by serendipity, the search for ways to overcome biological barriers has been the major driving force for the significant development of nanocarriers over the last decades.1,2 The barriers that drugs need to conf...
We use scanning tunnelling microscopy and spectroscopy to explore the electronic structure of Fe$_{1.07}$Te which is the parent compound of the iron-chalcogenide superconductors. A unidirectional electronic structure with a period of $a_{0}$ (where $a_{0}$ is the lattice constant) along the a-axis is observed. The uni…
Abstract The aim of this work was to develop polyamide-6/ organic-modified montmorillonite (omMMT) nanocomposites for the production of hollow parts by rotational molding. Particular emphasis was placed on the mechanical and flame retardancy properties needed for the fabrication of vessels for flammable liquids. The m…
Abstract Periodicity of mesoporous silica films with aligned cylindrical pores formed on a substrate with a rubbing-treated polyimide through a sol–gel process can be finely controlled using nonionic surfactants with different alkyl chains. The degree of alignment increases with the alkyl-chain length of the surfactan…
Abstract In this study, cross-sectional analyses were performed on microcellular injection-molded high-impact polystyrene products. The results confirm that the following five types of layers were formed: Skin layers I (the silver streak layer) and II (a nonfoamed layer), Core layers I (cell diameter, d > 150 μm),…
Crescent aromatic oligoamides are shown to form thermotropic lamellar columnar, rectangular columnar, and discotic nematic mesophases according to structural variation, demonstrating their capability to serve as a new class of diverse mesogens of liquid crystals.
The dispersion of highly concentrated Zirconium diboride ( ZrB 2 ) suspension in aqueous media was investigated in terms of zeta potential and rheological measurements, with a salt of polyacrylate polymer ( SD ‐07) as dispersant. The adsorption behavior of SD ‐07 on ZrB 2 particle surface was also studied. Results sho…
Using density functional theory, we investigate the growth mode of Pt (001) on SrTiO3 (001) (STO) and explore the thermodynamic wetting conditions at this interface. The authors calculate the surface energy of Pt (001) to be 2.45 J/m2 and that of TiO2-terminated STO (001) to range from 1.30–2.06 J/m2, depending on the…
Leicht rein, leicht raus: Der Stofftransport durch TiO2- und SiO2-Schalen wurde in der Flüssigphase mit IR-Spektroskopie verfolgt, indem die Kohlenmonoxid-Adsorption in Pt@Lücke@TiO2-Dotter/Schale- und Pt@SiO2-Kern/Schale-Nanostrukturen detektiert wurde. Adsorption wurde an der Oberfläche von Pt-Nanopartikelkernen und…