Materials Literature
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A polycrystalline sample of (Bi 0.5 K 0.5 )(Fe 0.5 Nb 0.5 )O 3 was prepared using a mixed oxide at 1000 °C. The preliminary structural analysis using X-ray diffraction data of the compound indicates the formation of a single-phase rhombohedral structure similar to that of parent BiFeO 3 . Microstructural and elemental…
Abstract The sequential reaction of the multisite coordination ligand 2‐methoxy‐6‐{[2‐(2‐hydroxyethylamino)ethylimino]methyl}phenol (LH 2 ) with Fe(ClO 4 ) 2 · 4H 2 O or a combination of Fe(ClO 4 ) 2 · 4H 2 O and Ln(NO 3 ) 3 · 5H 2 O [Dy III and Tb III ] in the presence of tetramethylammonium hydroxide and pivalic aci…
Bovine serum albumin (BSA) coated on citrate capped gold nanoparticles (BSA-GNPs) was exposed to a simulated wastewater effluent (SSE) in order to study the mineralization and thereby mimic scaling at biofouled membranes of reverse osmosis (RO) wastewater desalination plants. RO is a leading technology of achieving fr…
It still remains a great challenge to design and construct framework-structured weak ferromagnets with large canting angle which is an effective approach for high performance magnets. According to the strategy of antisymmetric interaction causing spin canting, we report the design of four cobalt compounds, which were…
Metastable zone widths (MSZWs) and induction times ( t ind ’s) were measured by turbidity techniques during the antisolvent crystallization of disodium guanosine 5′-monophosphate (5′-GMPNa 2 ). Measured MSZWs can be affected by numerous process parameters, including temperature, the agitation rate, and the antisolvent…
In this study, hexagonal-phase NaY 0.6– x Ce 0.1 Gd 0.3 Eu x F 4 nanorods were synthesized via a mild solvothermal method. By modifying the Eu 3+ dopant concentration, the crystal phase, morphology, and luminescent properties were well controlled. A broad excitation band centered at around 260 nm corresponding to the…
A new emission color-changeable (green-to-blue) conjugated polyelectrolyte was synthesized to use in biothiol sensing with its paper-based strip.
Oxorhenium(V) complexes of the general formula [ReOCl2(PPh3)(L)] (2a-c) and [ReOCl(L)2] (3a-c) with L being monoanionic, bidentate phenolate-pyrazole ligands 1a-c that bear substituents with various electronic features on the phenol ring (1a Br, 1b NO2, 1c OMe) were prepared. The compounds are stable toward moisture a…
High efficiency with excellently stable electron field emitters based on monolayer graphene coated on well-aligned Si tip (graphene/SiT) arrays fabricated by a simple transfer method is demonstrated.
Here we outline a new method for synthesizing fully reduced Pt dendrimer-encapsulated nanoparticles (DENs). This is achieved by first synthesizing Cu DENs of the appropriate size through sequential dendrimer loading and reduction steps, and then galvanically exchanging the zerovalent Cu DENs for Pt. The properties of…
Mizoroki-Heck coupling polymerization of 1,4-bis[(2-ethylhexyl)oxy]-2-iodo-5-vinylbenzene (1) and its bromo counterpart 2 with a Pd initiator for the synthesis of poly(phenylenevinylene) (PPV) was investigated to see whether the polymerization proceeds in a chain-growth polymerization manner. The polymerization of 1 w…
Herein we report the generation and control of double channel emission from a single component system following a facile complexation reaction between a Mn(2+) doped ZnS colloidal quantum dot (Qdot) and an organic ligand (8-hydroxy quinoline; HQ). The double channel emission of the complexed quantum dot-called the qua…
The structural stability and magnetic properties of iridium clusters Irn (n = 2-10) and their interaction on γ-Al2O3(001) and MgO(100) surfaces have been investigated from first principles calculations. It is found that the adsorption energy of Irn (n = 2-10)/γ-Al2O3(001) is lower than that of Irn/MgO(100); meanwhile,…
The dynamics of poly( n -butyl methacrylate) confined in porous anodic aluminum oxide (AAO) templates are investigated using differential scanning calorimetry (DSC) and fluorescence nonradiative energy transfer (NRET). Two glass transition temperatures ( T g,low and T g,high ) are obtained at higher infiltration tempe…
A rarely observed phosphate enriched POM anion, [NiMo <sub>12</sub> O <sub>30</sub> (PO <sub>4</sub> ) <sub>8</sub> ] <sup>n−</sup> was synthesized and crystallized with protonated ethylene diamine in one-pot reaction. The composite was tested for proton conductivity measurement.
The mass attenuation coefficients of some low-Z dosimetric materials with potential applications in dosimetry, medical and radiation protection have been investigated using the Monte Carlo simulation code Monte Carlo N-Particle (MCNP). Appreciable variations are noted for the mass attenuation coefficient by changing t…
Graphene and boron nitride (GPBN) heterostructures provide a viable way to realize tunable bandgap, promising new opportunities in graphene-based nanoelectronic and optoelectronic devices. In the present study, we investigated the interplay between vacancies and graphene/ h -BN interfaces in monolayer GPBN heterostruc…
Two Fe(II) complexes, {[(tpma)Fe(μ-CN)]4}X4 (X = ClO4(-) (1a), BF4(-) (1b); tpma = tris(2-pyridylmethyl)amine), were prepared by reacting the {Fe(tpma)}(2+) building block with (Bu4N)CN. The crystal structures of 1a and 1b feature a tetranuclear cation composed of cyanide-bridged Fe(II) ions, each capped with a tetrad…
We demonstrate the first example of exfoliated layered europium hydroxide (LEuH) composites with a fluorescent molecule that exhibit blue luminescence. Co-quenching in the solid state, blue emission (440 nm) in formamide, and green emission (514 nm) in water-formamide were found, for which delamination and swollen sta…
The main challenge for applying upconversion (UC) to silicon photovoltaics is the limited amount of solar energy harvested directly via erbium‐based upconverter materials (24.5 W m –2 ). This could be increased up to 87.7 W m –2 via spectral concentration. Due to the nonlinear behavior of UC, this could increase the b…