Materials Literature
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Citrate based sol–gel method is used to synthesize Gd₂O₃:RE³⁺ and GdAlO₃:RE³⁺ (RE = Eu, Dy) phosphors. In the present work, the phosphors are characterized using the techniques like X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), diffuse reflectance spectroscopy (DRS) and photoluminescence spe…
A facile sol combustion and gel calcination process has been reported for the preparation of core– shell magnetic Zn0.5Fe₂O₄@SiOnanocomposites. The morphology, chemical composition, structure and magnetic property of as-prepared nanocomposites were investigated by XRD, VSM, BET, SEM, and TEM, and the magnetic Ni0.5Zn0…
ABSTRACT In this research, cellulose acetate butyrate (CAB) electrospun nanofiber membrane (ENM) was prepared by electrospinning method in order to separate the contaminants of an industrial wastewater. The influence of various electrospinning parameters on morphology and average fiber diameter of the membranes were i…
The thermally controlled synthesis of graphene from propylene molecules on the Ni(111) surface in ultrahigh vacuum is studied by scanning tunneling microscopy and density functional theory. It is established that the adsorption of propylene on Ni(111) atomic terraces at room temperature results in the dehydration of p…
ABSTRACT Results of the preparation of semi-permeable membranes made of biodegradable polymers membranes were presented. Among known polyesters, polylactide was selected for research. The membranes were obtained using wet phase inversion method. The influence of polyvinylpyrrolidone and polymeric nano-non-wovens as po…
Amorphous and nanocrystalline Zinc Oxynitride (nc-ZnON) has been found to be one kind of potential materials for thin film transistors in the application of advanced display because of their high carrier mobility and low persistent photocurrent. We report a systematic study of ZnON properties and their correlation to…
We experimentally and theoretically demonstrate an ultrathin, broadband, and highly efficient metamaterial-based polarization converter with a metasurface/insulator/metal (MIM) configuration. In such a system, the resonance undergoes a transition from a vertical Fabry–Pérot type to a transverse type as the spacer thic…
Microwave waveguides allow an effective transfer of electromagnetic energy through straight connection or well-rounded curves, but become rather inefficient in case of sharp bends or squeezed waveguide cross-sections. Here, we discuss the possibility to funnel the electromagnetic energy propagating in a waveguide thro…
We have simulated the rise in temperature (Δ T ) of uniaxial single domain nanomagnets (particle size r) placed under alternating (AC) magnetic field (frequency ω ) in ' r - ω ' plane. Based on this, a phase space of 'Δ T max - r - ω ' has been constructed. This phase space suggests two bio-compatible ferrites namely…
MgTiO3 thin films were deposited on an amorphous silicon dioxide substrate by the RF magnetron sputtering method by varying the argon and oxygen mixing percentage. These pristine thin films were subjected to thermal annealing at a temperature of 700°C and subsequently two sets of crystalline thin films were irradiated…
A three-dimensional (3D) on-chip supercapacitor is fabricated by performing deep-ultraviolet lithography on a SU-8 photoresist. By using a cathodic deposition technique, ripple-like ruthenium oxide-carbon nanotube nanocomposites are synthesized. The carbon nanotube (CNT) network in the nanocomposite makes the electrol…
The work studies chemical stability and thermal compatibility of composite electrodes in contact with proton electrolyte based on calcium zirconate. Composite of electrolytes of CaZr 0.95 Sc 0.05 O 3–δ and CaZr 0.9 Y 0.1 O 3–δ with Fe, Ni, Cu, and Pd metals and also with the perovskite oxide of SrTi 0.8 Fe 0.2 O 3–δ a…
Regularities of change in the structural parameters of EuLnCuS 3 (Ln = La–Nd, Sm, Gd, Ho) at an annealing temperature of 970 and 1170 K have been established. A decrease in the Ln 3+ ionic radius results in the consecutive change of structural types (STs) for the compounds: α-EuLnCuS 3 (Ln = La, Ce, Pr, Nd; BaLaCuS 3…
In this work, we have presented a freestanding and flexible CNT-based film with sheet resistance of 60 Ω/□ and transmittance of 82% treated by nitric acid and chloroauric acid in sequence. Based on modified CNT film as a transparent electrode, we have demonstrated an ultrathin, flexible organic solar cell (OSC) fabric…
In this work, we have examined the ultrafast dynamics of shape- and composition-controlled bimetallic Au/Ag core/shell nanostructures with transient absorption spectroscopy (TAS) as a function of Ag layer thickness (0–15 nm) and pump excitation fluence (50–500 nJ/pulse). Our synthesis approach generated both bimetalli…
Abstract Much of the current understanding of thermal effects in biological systems is based on macroscopic measurements. There is little knowledge about the local thermostability or heat tolerance of subcellular components at the nanoscale. Herein, we show that gold nanorod–fluorescent nanodiamond (GNR‐FND) hybrids a…
The results of molecular dynamics simulation performed using multiparticle potentials have been analyzed. The thermally activated processes of relaxation, diffusion, and formation of metal/graphene (M = Cu, Ru/G) interface structures have been considered, and their disordering and destruction have been analyzed as an…
In this review, we discussed the current mechanistic understanding and effects of key parameters on corrosion of carbon and low alloy steel (CLAS) in CO2 environments. In particular, we emphasized on the current understanding related to the mechanism of early stage nucleation of siderite that has evolved from the outc…
Through the urea and sodium citrate electrochemical carbonizing, one-pot method which is convenient and economical, is employed to fabricate the water soluble carbon dots (designated as C-Dots). By developing electrochemical sensor with high sensitivity, where the glassy carbon electrode was decorated by C-Dots, the c…
ABSTRACT The degradation of phenol, as an organic pollutant model, in water was systematically assessed under solar TiO 2 -photocatalysis in forced circulation loop reactor. The degradation rate was evaluated at various amounts of TiO 2 and different initial concentrations of phenol. Additionally, the influence of cou…