Materials Literature
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Density functional theory calculations have been carried out to investigate single-layer phosphorene functionalized with two kinds of organic molecules, i.e., an electrophilic molecule tetracyano- p -quinodimethane (TCNQ) as electron acceptor and a nucleophilic molecule tetrathiafulvalene (TTF) as electron donor. The…
Using a simple hydrothermal procedure, cobalt oxide (Co3O4) with preferred orientation along (220) planes is in situ prepared and coated on MWCNT. The prepared Co3O4@MWCNT nanocable shows superior electrochemical performance as cathode material for aqueous supercapacitors in 0.5 M KOH solution. Its redox peaks retain…
A simple aqueous solution-immersion process was established to fabricate highly dense ordered Cu2O nanorods on commercial phosphor-copper mesh, with which the preparation was accomplished in distilled water. The present method, with the advantages of simple operation, low cost, short reaction time, and environmental f…
In this article, Eu-activated CaYAlO4 aluminate phosphors were synthesized by a solid-state reaction. Under UV light excitation, characteristic red line emission of Eu(3+) was detected in the range of 570-650 nm. In addition, we introduced crystal-site engineering approach into the CaYAlO4 host through incorporation o…
Two-dimensional (2D) layered materials consist of covalently bonded 2D atomic layers stacked by van der Waals interactions. Such anisotropic bonding nature gives rise to the orientation-dependent functionalities of the 2D layered materials. Different from most studies of 2D materials with their atomic layers parallel…
Herein we present the use of lanthanide directed self-assembly formation (Ln(III) = Eu(III), Tb(III)) in the generation of luminescent supramolecular polymers, that when swelled with methanol give rise to self-healing supramolecular gels. These were analyzed by using luminescent and (1)H NMR titrations studies, allowi…
The nature of the tetragonal-to-orthorhombic structural transition at T_{s}≈90 K in single crystalline FeSe is studied using shear-modulus, heat-capacity, magnetization, and nuclear magnetic resonance measurements. The transition is shown to be accompanied by a large shear-modulus softening, which is practically ident…
BACKGROUND: Nanoparticle (NPs) functionalization has been shown to affect their cellular toxicity. To study this, differently functionalized silver (Ag) and gold (Au) NPs were synthesised, characterised and tested using lung epithelial cell systems. METHODS: Monodispersed Ag and Au NPs with a size range of 7 to 10 nm…
We study the thermoelectric properties of bulk and monolayer MoSe 2 and WSe 2 by first-principles calculations and semiclassical Boltzmann transport theory. The lattice thermal conductivity is calculated using the self-consistent iterative approach as well as the single-mode relaxation time approximation. The acoustic…
X-ray photoelectron spectroscopy (XPS) is one of the best tools for studying the chemical modification of surfaces, and in particular the distribution and bonding of heteroatom dopants in carbon nanomaterials such as graphene and carbon nanotubes. Although these materials have superb intrinsic properties, these often…
The development of lead-free piezoelectric materials have gained great attention for the consideration of environmental protection. Nanosized BaSr 0 . 9 Fe 0 . 1 TiO 4 , a lead free perovskite phase structured ceramic was prepared via a high-energy ball milling process through mechanically assisted synthesis. The samp…
Composites based on high density polyethylene (PE-HD) matrix with a natural filler in the form of keratin fibers obtained from poultry feather waste were used in the study. Composites containing 15, 30 and 50 % keratin fibers were produced. The fibers were purified using three methods. The water absorption of the obta…
The role of membrane formation, diffusion, and segregated reaction in determining the composition and morphology of copper, magnesium, and zinc carbonate and nitrate precipitates has been investigated. Photography of the coalescence of drops of divalent nitrate solutions into a shallow pool of sodium carbonate, at mil…
The optical response of the Pr 3+ ions doped monolith of SiO 2 prepared by sol-gel method was investigated by absorption and emission spectra. The absorption spectrum shows some typical lines of Pr 3+ , with these data was made the diagram levels corresponding to SiO 2 : Pr 3+ . The emission spectra were taken at 225…
Dihydrazinium, hydrazinium, hydrazinium ammonium, and ammonium salts of ethylenediaminetetraacetic acid (H4edta) such as (N2H5)2H2edta, N2H6H2edta, N2H5NH4H2edta and (NH4)2H2edta have been prepared and characterized by elemental analyses, hydrazine analysis, conductivity measurements, and infrared spectra. The thermal…
We propose a fast and low-temperature method to synthesize CuInS2/ZnS quantum dots (CIS/ZnS QDs) using polyetheramine (D400) as solvent. It was found that the CIS/ZnS QDs synthesized at 140 °C exhibited a broad photoluminescence (PL) emission bandwidth (i.e., 135 nm) and a small PL blueshifted (i.e., 20 nm) as we coat…
Abstract Die Verkapselung lichtempfindlicher 2‐Oxoacetate in Mikrokapseln mit Kern‐Schale‐Struktur ermöglicht eine lichtinduzierte, kontrollierte Freisetzung biologisch aktiver Substanzen. Durch Bestrahlung mit UVA‐Licht zersetzen sich die verkapselten Oxoacetate und bilden einen Gasüberdruck im Inneren der Kapseln, d…
<div class="section abstract"><div class="htmlview paragraph">Diesel engines are becoming popular because of more fuel efficient and durability. While the CO and HC impurities are significantly lower than in gasoline engines, the design strategies for reduction of Particulate Matter and Nitrogen Oxides rem…
Porphyrins are important macrocyclic compounds that exist in nature, particularly in their metallated forms. Their unique properties have led the chemical community, since the earliest studies, to embrace the challenge of synthesizing porphyrins. In the quest to produce and manipulate the periphery of these macrocycli…
Diversities in the pollinia morphology of the family Asclepiadaceae in respect to pollinium shape, size, color, length and breadth of pollinial sac, length and breadth of corpusculum and length and breadth of caudicle were studied in 13 species belonging to eight genera (Cynanchum L., Calotropis R.Br., Glossonema Deca…