Materials Literature
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A prelude radiological impact assessment of oil spillage on the oil spilled environment, those saddled with the responsibility of cleaning the spilled crude and the host/nearest communities residents in Rivers State Nigeria has been examined in-situ, using radiation meters (Digilert 100 nuclear radiation meter) and a…
Non-equilibrium molecular dynamics (NEMD) simulations are used to investigate the thermal conductivity of herringbone graphite nanofibers (GNFs) at room temperature by breaking down the axial and transverse conductivity values into intralayer and interlayer components. The optimized Tersoff potential is used to accoun…
The inhibition of the corrosion of carbon steel in 1 M Phosphoric acid (H3PO4) solutions by some benzothiazole derivatives had been investigated using weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) techniques. Inhibition was found…
Abstract Layered silicate–[Ir(2‐phenylpyridine)2(2,2′‐bipyridine)]+ {[Ir(ppy)2(bpy)]+} composites were synthesized by the ion exchange between the intercalated alkyltrimethylammonium ions and [Ir(ppy)2(bpy)]+ ions. The loading amounts of the Ir complexes were increased by an increase in the reaction temperature. The p…
Abstract Poly(vinyl chloride) (PVC)/layered double hydroxide (LDH) composites and PVC/poly(methyl methacrylate) (PMMA)/LDH composites were prepared via solution intercalation into PVC using both unmodified and organo‐modified LDHs and variable‐molecular‐weight PMMA as additional components. The LDH dispersion was inve…
D-penicillamine-capped cadmium telluride quantum dots (DPA-capped CdTe QDs) were synthesized as the new fluorescent semiconductor nanocrystal in aqueous solution. Fourier transmission infrared spectroscopy, X-ray diffraction, transmission electron microscopy, ultraviolet-visible and photoluminescence spectroscopy were…
Early expectations for a role of diffractive lenses were dramatically lessened by their high order overlapping foci, low optical powers, and competing advances in refractive micro-optics. By bringing the Bragg properties of volume holograms to diffractive lenses we got rid of ghost diffractive orders and the critical…
Radiation-induced structural changes in the chalcogenide glasses of (As₂S₃)x(GeS₂)₍₁₋х₎ system with x = 0.1, 0.2, 0.4, and 0.6 corresponding to the chemical compositions Ge₂₈.₁₂₅As₆.₂₅S₆₅.₆₂₅, Ge₂₃.₅As₁₁.₈S₆₄.₇, Ge₁₅.₈As₂₁S₆₃.₂, and Ge₉.₅As₂₈.₆S₆₁.₉, respectively, were studied using the Raman spectroscopy technique in…
Zinc oxide nanoparticles (ZnO NPs) induce morphological transformation of Escherichia coli from its native rod‐shape of ≈2–4 μm to filamentous cells of 20–40 μm in length. The transient response can only be observed at up to 3.5 h proliferation, beyond which the cytotoxic effect is neutralized and the rod‐shape is res…
A new sulfated chitosan superplasticizer ( SCS ) was synthesized by sulfation chitosan. The chemical structure and molecular weight of SCS were characterized by FTIR and gel permeation chromatography (GPC). The application performances of SCS in cement paste and concrete were investigated in the views of fluidity, slu…
We study the interplay of $3d$ and $4f$ electrons in the iron pnictides CeFe${}_{1\ensuremath{-}x}$Co${}_{x}$AsO and GdFe${}_{1\ensuremath{-}y}$Co${}_{y}$AsO, which correspond to two very different cases of $4f$-magnetic moment. Both CeFeAsO and GdFeAsO undergo a spin-density-wave (SDW) transition associated with Fe $…
In this paper, the transmission of the electromagnetic waves in the waveguide filled with the anisotropic epsilon-near-zero (ENZ) metamaterials with dielectric cylindrical defects embedded is investigated. The anisotropy is taken into consideration, and the sandwich structure is put forward to achieve total transmissi…
Influence of combined size confinement effect and effect of local laser heating \n on the first-order Raman spectrum of silicon nanocrystals embedded into SiOx matrix has \n been studied. Increase of the local temperature of Si nanocrystals caused by laser \n illumination with the power density up to 10 mW/μm² was est…
Two commercial zirconia powders with 3 mol% of yttria ( TZ 3 YE and TZ 3 YS , labeled as ZE and ZS , respectively) supplied by Tosoh (Japan) were used for this study. Maximum colloidal stability for ZE was achieved by dispersing the powders in a mixture of water/ethanol of 90:10 (wt/wt) using a sonication probe. The r…
This paper examines the mechanical properties of metal matrix composites based on groundnut shell fiber. Fiber-reinforced polymer composites have played a dominant role for a long time in a variety of applications for their high specific strength and modulus. The fiber which serves as a reinforcement in reinforced pla…
Gold nanorods are widely known for their photothermal properties to treat solid tumors. Our work demonstrates the unrealized capacity to image these reagents in liquid at high resolution using Transmission Electron Microscopy (TEM). Here we perform the first atomic measurements of functionalized nanorods in solution w…
When 1-methyl-2-pyrrolidone molecule (1m2p) interacts with the T[Ni(CN)4] layer, its carbonyl π bond homolytically disrupts and forms a coordination bond at the axial positions for the metal T, and hybrid inorganic-organic solids of formula unit T(L)2[Ni(CN)4], with T = Mn, Co, Ni, are obtained. The formed solids crys…
Uniform coating of nanometer‐scale BaTiO 3 – Dy 2 O 3 – SiO 2 layers on spherical Ni particles are achieved by controlled hydrolysis of tetrabutyl titanate ( TBT ), hydrothermal reaction with Ba ( OH ) 2 , and co‐precipitation of tetraethylorthosilicate ( TEOS ) and Dy ( NO 3 ) 3 . The composition of the coating layer…
Thioglycolic acid capped cadmium sulfide (CdS/T) quantum dots have been synthesized using wet chemistry and their optical behavior has been investigated using UV-visible absorption and fluorescence spectroscopy. The role of the capping agent, sulfide source concentration, pH and temperature has been studied and discus…
Emulsions stabilized by clay particles and sorbitan monooleate (Span 80) were investigated, and an abnormal phase inversion was observed by increasing the concentration of clay particles in the aqueous phase. At a fixed concentration of Span 80 in the oil phase, the emulsions were oil-in-water (o/w) when the concentra…