Materials Literature
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We have discovered new nickel-based pnictide oxide superconductors, (Ni 2 Pn 2 )(Sr 4 Sc 2 O 6 ) ( Pn = P, As). These compounds have a tetragonal unit cell with a space group of P 4/ n m m and they consist of alternate stacking of anti-fluorite Ni 2 Pn 2 layers and K 2 NiF 4 -type Sr 4 Sc 2 O 6 blocking layers. Lattic…
Various carbon nanofibers (CNFs) have been synthesized by catalytic decomposition of methane over Ni−Al 2 O 3 and Ni−Cu−Al 2 O 3 catalysts at 500−700 °C. On the basis of the physical and chemical characterization of these CNFs, their electrochemical reactivities are evaluated in a novel direct carbon fuel cell (DCFC).…
We measured the temperature-dependent three-dimensional angle-resolved photoemission spectra of EuO (100) thin film, a typical Heisenberg ferromagnetic semiconductor, to investigate the essential origin of the ferromagnetic transition. We observed sizable energy dispersion and large binding-energy shift of the Eu 4f s…
Abstract A general and highly enantioselective method for the epoxidation of cis ‐alkenylsilanes, in which the epoxysilanes were obtained with complete enantioselectivity in the presence of 0.5–2 mol % of a Ti–Salalen complex. The combination of this epoxidation method and the following transformations is a powerful a…
Abstract Dispersions of multiwalled carbon nanotubes (MWNT) in polypropylene (PP) were prepared via conventional melt batch mixing and solid‐state shear pulverization. The properties and structure of each system were assessed via linear viscoelasticity, electrical conductivity, PP crystallization kinetics, dynamic mec…
We show that reducing the crystal size of $[{\text{Mn}}_{12}{\text{O}}_{12}{({\text{O}}_{2}{\text{C}}_{6}{\text{H}}_{5})}_{16}{({\text{H}}_{2}\text{O})}_{4}]$ single-molecule magnets from 11.5 to $0.4\text{ }\ensuremath{\mu}\text{m}$ strongly affects the molecular magnetic anisotropy and magnetic-relaxation rates. The…
Abstract The high flammability of cotton fleece makes it necessary to apply a flame retardant system on cotton fleece so that it can meet the federal regulation ‘Standard for the Flammability of Clothing Textiles’ (16 CFR 1610). The objective of this research was to reduce the flammability of cotton fleece using the p…
BiFeO(3) has attracted great interest for its multiferroic property. The spontaneous electric polarization, multiferroism, and static magnetoelectric coupling have been widely studied both experimentally and theoretically. Here, in this paper, we report on the effects of magnetic ordering, spin fluctuation, and extern…
Recent exploitations of the superior mechanical and electronic properties of carbon nanotubes (CNTs) have led to exciting opportunities in low-cost, high performance, carbon-based electronics. In this report, low-voltage thin-film transistors with aligned, semiconducting CNT networks are fabricated on a chemically mod…
For the first time, a pH-controllable weak polyelectrolyte/metal nanoparticle composite film was successfully constructed on a solid substrate through layer-by-layer (LbL) assembly, and its localized surface plasmon coupling (LSPC) was investigated. The degree of LSPC can be modulated by controlling pH of the weak pol…
Pretreatments with different chemicals at different concentrations to remove Ca compounds were studied to determine their effects on gelatin extraction from silver carp (Hypophthalmichthys molitrix) scales. During Ca removal with HCl, citric acid, and EDTA, all 3 chemicals were able to decalcify (>90%) scales; however…
The discovery of the new class of pnictide superconductors has engendered a controversy about their pairing symmetry, with proposals ranging from an extended s wave or "s_{+/-}" symmetry to nodal or nodeless d-wave symmetry to still more exotic order parameters such as p wave. In this Letter, building on the earlier,…
Polystyrene-covered magnetic iron oxide particles (referred to as FeO(x)@PS) with different shell thickness are used as a novel type of nanostructured stabilizers in the preparation of magnetoresponsive Pickering emulsions. Microscopical methods (optical microscope and flow particle image analyzer) and magnetic charac…
Different two-phase approaches have been developed for the synthesis of two classes of monodisperse colloidal metal oxide nanocrystals (NCs): rare earth oxide NCs and transition metal oxide NCs. These routes were simple and inexpensive, using metal salts instead of organometallic compounds, with mild reaction conditio…
The interplay between spin waves (magnons) and electronic structure in materials leads to the creation of additional bands associated with electronic energy levels which are called magnon sidebands. The large difference in the energy scales between magnons (meV) and electronic levels (eV) makes this direct interaction…
Fluorescent cellular biomarkers play a prominent role in biosciences. Most of the available biomarkers have some drawbacks due to either physical and optical or cytotoxic properties. In view of this, we investigated the potential of green fluorescent nanodiamonds as biomarkers in living cells. Nanodiamonds were functi…
A series of luminescent alkynylplatinum(II) terpyridyl complexes have been synthesized and characterized by 1H NMR, IR, FAB-mass spectrometry, and elemental analysis; one of the platinum(III) complexes has also been structurally characterized by X-ray crystallography. Their electrochemical and photophysical properties…
The single-crystal n-type and p-type ZnO nanowires (NWs) were synthesized via a chemical vapor deposition method, where phosphorus pentoxide was used as the dopant source. The electrical and photoluminescence studies reveal that phosphorus-doped ZnO NWs (ZnO:P NWs) can be changed from n-type to p-type with increasing…
We study the quantum dynamics of a system consisting of a magnetic molecule placed on a microcantilever. The amplitude and frequencies of the coupled magnetomechanical oscillations are computed. Parameter-free theory shows that the existing experimental techniques permit observation of the driven coupled oscillations…
Here we present a simple platform for probing plasmon enhanced photoluminescence (PL) of quantum dots by confocal microscopy. In this study, self-assembled monolayers of silane-derivative molecules were patterned onto the oxidized GaAs surfaces to direct the attachment of Au or Ag nanoparticles onto the surface. Follo…