Materials Literature
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An analytical solution for the distribution of surface charge on a dielectric sphere due to the presence of an external point charge is presented. This solution describes how charge on the surface of the sphere is polarised in the electric field into regions of negative and positive charge. The polarisation effect (di…
The cuprate superconductor YBa2Cu3O7−δ (Y123) has been synthesised for the first time in a spherical morphology. The use of carboxymethyl-dextran in a pre-formed, spherical morphology enables not only the engineering of this new macromorphological motif, but also crystallochemical control of the superconductor at the…
The classic cloud point extraction has been modified by the inclusion of nanodiamonds and applied to the extraction–preconcentration of fluoranthene from river water. The effects of ionic strength and surfactant concentration, process temperature, incubation time, nanoparticle type and concentration and elution condit…
We report experimental results on pattern formation in vertically vibrated granular materials confined in a quasitwo-dimensional container. For a deep bed of mono-disperse particles, we uncovered a new transition from the bouncing bed to an f /4-wave ( f is the frequency of shaking) which eventually gives birth to an…
PVC/CdS nanocomposites have been prepared by solution casting method taking 2, 4, 6 and 8 wt% of CdS nanoparticles. PVC/CdS nanocomposites were characterized through TEM measurement. The measurement of effective thermal conductivity of PVC/CdS nanocomposites has also been done using transient plane source (TPS) method…
Rapid spontaneous alloying between Pd nanocubes and spherical or triangular Ag nanoparticles was studied in an aqueous solution at ambient temperature using transmission electron microscopy (TEM), TEM-energy-dispersed X-ray spectroscopy (EDS), XRD, and UV-Vis spectroscopy of product particles. The results show that al…
Cupric oxide thin films have been prepared on ITO glass substrates from an aqueous electrolytic bath containing CuSO4 and tartaric acid. Growth mechanism has been analyzed using cyclic voltammetry. The role of pH on the structural, morphological, compositional, electrical and optical properties of CuO films is investi…
Abstract—We study the surface enhanced Raman scattering (SERS) from bimetallic core-shell nanoparticles by taking into account the nonlocal effect. The Gersten-Nitzan model is applied to investigate SERS from a molecule adsorbed on the nonlocal bimetallic nanoparticle. Numerical results show that there are two enhance…
We developed a novel method for the synthesis of Au nanoclusters (NCs) silica fluorescent composite nanospheres by mixing the as‐prepared bovine serum albumin (BSA) protected Au NCs with amino‐modified silica spheres in acetate buffer solution. The products were characterized by high‐resolution transmission electron m…
Single-crystalline YMn2O5 was successfully synthesized through a tunable hydrothermal route. The pH value of the growth solution was a crucial factor for the control of the size and morphology of YMn2O5. A low pH value led to the formation of nanorods. Both the final size of the nanocrystals and their aspect ratio inc…
Thermo physiological comfort is an important aspect of apparel especially when worn under challenging environmental conditions, and relevant performance attributes of garments become even more important in active sportswear. The wide spectrum of performance materials and their combinations that can be selected for gar…
This study uses electrochemical impedance spectroscopy (EIS) to characterize an LSM/CGO symmetric cell modified by NO x adsorbents for the application of electrochemical NO x reduction. Three cells were prepared and tested: a blank cell, a cell impregnated with BaO, and a cell coated with a BaO-Pt-Al 2 O 3 layer. The…
A ratiometric probe has been designed and synthesized through the introduction of a carboxylated functionality. The probe 1, synthesized in two steps, was found to be a fluorescent chemosensor for the selective ratiometric detection of Fe3+/Cu2+ over a wide range of metal ions quite efficiently. The carboxylated unit,…
This paper describes the morphology of carbon nanomaterials such as carbon nanotube (CNT), graphene, and their hybrid structure under various operating conditions during a one‐step synthesis via plasma‐enhanced chemical vapor deposition (PECVD). We focus on the synthetic aspects of carbon hybrid material composed of h…
In the present study, we investigated nitrosoarene dimerization on an Au(111) and on the surface of gold nanoparticles (AuNPs). High-resolution STM images revealed that 8-thiocyanatooctyl-4nitrosobenzoate (NCS(CH 2 ) 8 OOCC 6 H 4 NO) forms well-ordered monolayer on an Au(111) surface displaying hexagonal 3 3 3 3 struc…
A high-pressure X-ray diffraction study of manganite (γ-MnOOH) was performed using 10.1 GPa at room temperature. The aim of this study was to determine the compression behavior of an oxyhydroxide with an InOOH-related structure. The pressure-volume data were fitted by a third-order Birch-Murnaghan equation of state wi…
The year 2012 marked the fiftieth anniversary of the physics of failure concept since it was first introduced in 1962 by the Rome Air Development Center (now known as the Air Force Research Laboratory). A chronological description of the important historical events that led to the birth and subsequent advancement of p…
The synthesis of polyacrylamide nanoparticles by semi-continuous inverse heterophase polymerization as a function of feeding rate of monomer aqueous solution is reported here. In this process, a concentrated acrylamide aqueous solution is dosed semi-continuously at various rates over an AOT-toluene solution containing…
Mono and hetero binuclear cryptates, [Gd(III)ML]^+ [M = VO(IV), Co(II), Ni(II), Cu(II)], were synthesized by a 2-step method. The ligand L represents the deprotonated anionic cryptate obtained by the 2+3 condensation of tris-(2-aminoethyl)amine with 2,6-diformyl-4-nitrophenol. The complexes were characterized by eleme…
A novel wicking material using nanostructured titania grown on high aspect ratio titanium micropillars is demonstrated. High aspect ratio titanium micropillars were micromachined from bulk titanium sheets. Nanostructured titania was then grown on the surface of titanium micropillars by oxidation in aqueous hydrogen pe…