Materials Literature
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From first-principles calculations we investigate the electronic structure and the magnetic properties of $\mathrm{EuO}$ under hydrostatic stress and the appropriate biaxial stress for epitaxial films. There is a complex interdependence of the $\mathrm{O}\phantom{\rule{0.3em}{0ex}}2p$ and $\mathrm{Eu}\phantom{\rule{0.…
Thin films of tungsten oxide were fabricated by reactive RF magnetron sputtering for applications related to the direct solar splitting of water. To investigate band gap reduction by nitrogen doping, films were deposited with nitrogen introduced into the sputtering ambient at partial pressures in the range of 0−6 mTor…
Poly(N-isopropylacrylamide) (PNIPAM)-carrying particles were characterized as thermosensitive Pickering emulsifiers. Emulsions were prepared from various oils, such as heptane, hexadecane, trichloroethylene, and toluene, with PNIPAM-carrying particles. PNIPAM-carrying particles preferentially formed oil-in-water (O/W)…
Arrays of multiwalled carbon nanotubes doped with phosphorus (P) and nitrogen (N) are synthesized using a solution of ferrocene, triphenyl-phosphine, and benzylamine in conjunction with spray pyrolysis. We demonstrate that iron phosphide (Fe(3)P) nanoparticles act as catalysts during nanotube growth, leading to the fo…
Novel hollow silica nanoparticles (HSNPs) for drug delivery vehicles were synthesized using silica-coated magnetic assemblies, which are composed of a number of Fe(3)O(4) nanocrystals, as templates. The core cavity was obtained by removal of Fe(3)O(4) phase with hydrochloric acid and subsequent calcination at a high t…
A new unsymmetric diarylethene derivative 1-{4-(5-methoxy-2-(2-pyridyl)thiazolyl)}-2-{3-(2-methylbenzo[ b ]thiophenyl)}hexafluorocyclopentene ( 1 ) was designed and synthesized. Fluorescence behaviors of 1 are multiswitched through protonation, coordination, and photochemical reactions due to the existence of multiple…
We present a study of different models of local disorder in graphene. Our focus is on the main effects that vacancies (random, compensated, and uncompensated), local impurities, and substitutional impurities bring into the electronic structure of graphene. By exploring these types of disorder and their connections, we…
A new synthetic strategy toward novel linear two-dimensional graphene nanoribbons up to 12 nm has been established. The nanoribbons are characterized by MS, UV/vis, and scanning tunneling microscopy (STM). Various microscopic studies of these novel structures showed a high tendency to self-assemble.
The reaction of (NBu4)(TCNE) (TCNE = tetracyanoethylene) and [Ni(NCMe)6][BF4]2 in CH2Cl2 forms layered [Ni(TCNE)(MeCN)2-delta][BF4], a magnet ( Tc = 40 K) with a ferromagnetic interaction within Ni-mu 4-[TCNE](*-) layers, and a new general route to the preparation of [M(TCNE)(NCMe)2][anion] magnets has been identified.
The operating temperature of a solid oxide fuel cell (SOFC) stack is a very important parameter to be controlled, which impacts the performance of the SOFC due to thermal cycling. In this paper, an adaptive fuzzy control method based on an affine nonlinear temperature model is developed to control the temperature of t…
A Prussian blue (PB) type material containing hexacyanovanadate(III), Mn(II)1.5[V(III)(CN)6].(0.30)MeCN (1), was formed from the reaction of [V(III)(CN)6](3-) with [Mn(NCMe)6](2+) in MeCN. This new material exhibits ferrimagnetic spin- or cluster-glass behavior below a Tc of 12K with observed magnetic hysteresis at 2…
Liquid ammonia treatment (water-based process) was applied in a large-scale production for improving quality of cotton/linen (warp/weft) fabrics. Results prove that liquid ammonia treatment is beneficial especially for improving dimensional stability, abrasion resistance and appearance after washing. The swelling trea…
Abstract A novel macromolecular compatibilizer, styrene‐ethylene‐propylene‐styrene (SEPS) with high content of styrene, was investigated for the purpose of improving the compatibility of PP (polypropylene)/PC (polycarbonate)/POE (ethylene‐octene copolymer) blends. SEPS shows a remarkable compatibilizing effect since i…
The current research reviews a study of the variation in diameter along the Mongolian horse tail hair length, and its effect on tensile properties. Our results show that horse tail hair fibre has quite considerable changes in diameter from the root to the tip. There is a significant decrease in fibre diameter at the t…
Magnetic ions of the 3dn transition series in oxide lattices can introduce large local magnetostriction effects through spin-orbit-lattice interactions with an axially distorted cubic crystal field. In this paper, the local-site magnetostriction model used successfully in ferrites containing small concentrations of Ja…
Scanning tunneling microscopy of Sb-capped GaAs shows the coexistence of different surface reconstructions. The majority of the surface consists of an $\ensuremath{\alpha}2(2\ifmmode\times\else\texttimes\fi{}4)$ reconstruction typically observed for GaAs(001) surfaces. At step edges, an $\ensuremath{\alpha}(4\ifmmode\…
Results of magnetization and high-field electron spin resonance (ESR) studies of the new spin-1 Haldane-chain material [Ni(C 2 H 8 N 2 ) 2 NO 2 ](BF 4 ) (NENB) are reported. A definite signature of the Haldane state in NENB was obtained. From the analysis of the frequency–field dependence of magnetic excitations in NE…
We have investigated the magnetic and the crystalline properties of a set of Ga1−xMnxAs layers with high nominal Mn compositions (x=0.101–0.198). Magnetization measurements and combined channeling Rutherford backscattering (c-RBS) and particle induced x-ray emission (c-PIXE) measurements have been performed to determi…
Abstract Flashover of polluted insulators is still a serious threat to the safe operation of a power transmission system. Despite the extensive investigations carried out on the pollution performance of the insulators, the flashover characteristics are not well understood. Recent theoretical and experimental research…
We have performed electroabsorption spectroscopy on micelle-wrapped single-wall carbon nanotubes. In semiconducting nanotubes, many oscillating structures composed of the increase and decrease of absorption are observed in the spectra in the region of the first and second absorption bands, E11 and E22. The spectral sh…