In this paper, the Co@SiO2 core-shell nanoparticles were prepared by the sol-gel method. The oxidization of Co core nanoparticles was studied by the synchrotron radiation-based techniques including in situ X-ray diffraction (XRD) and X-ray absorption fine structure (XAFS) up to 800°C in air and N2 protection conditions, respectively. It was found that the oxidization of Co cores is undergoing t...

A SYNERGISTIC ABSORPTION AND PLASMONIC EFFECT OF SiO2@Au@TiO2 IN TiO2 PHOTOANODE FOR DYE-SENSITIZED SOLAR CELLS. method for increasing the visible-light harvesting of a anatase photoanode in dye-sensitized solar cells by incorporating plasmonic nanostructures was developed. Sidoarjo mud as SiO2 source used to successfully synthesized core/multishell SiO2@Au@TiO2, with varying amounts Au (60, 90...

Electrodeposition is a simple and economic technique for precision coating of different shaped substrates with pure metal, alloy or composite films. Dc electrodeposition was used to produce Cr, Co-Cr and Co-Cr/TiO2 nano-composite coatings from Cr(III) based electrolytes onto 316L SS substrates. The effects of TiO2 nanoparticles concentration on co-deposition of these particles along with Cr con...

One-dimensional photonic crystals (1D PhCs) have a unique ability to control the propagation of light waves, however certain classes 1D oxides remain relatively unexplored for use as PhCs. Specifically, there has not been comparative study three different PhC structures compare influence layer thickness, number, and refractive index on PhCs transmission. Herein, we transfer matrix method (TMM) ...

Poly(vinylidene fluoride) (PVDF) with commercial rutile-TiO2, SiO2, α-Al2O3, and Fe3O4 nanoparticles were prepared via extrusion using different contents, from 0.1 to 10 wt.%. The effect of the in matrix on several material characteristics, such as thermal mechanical properties, crystallinity degree, permeability CO2, examined. X-ray diffraction infrared analyses revealed that successful incorp...

Poor characterisation of nanoparticle suspensions impedes the development nanolubricants for use in refrigeration and air-conditioning systems. Chemical treatment techniques, such as surfactants, are inappropriate enhancing stability intended vapour-compression (VCR) Prior to incorporating into system, TiO2 SiO2 nanoparticles dispersed PVE was therefore investigated. The were prepared by a two-...

Matrix-assisted pulsed laser evaporation direct-write (MAPLE-DW) is a laser-based method of directly writing mesoscopic patterns of electronic materials. Patterns of composite BaTiO3/SiO2/TiO2 dielectric material were written onto Pt/Au interdigitated-electrode test structures, with precise control over final dielectric properties. Scanning electron microscopy indicates random close-packed stru...

We study the atomic layer deposition of TiO2 by means of X-ray absorption spectroscopy. The Ti precursor, titanium isopropoxide, was used in combination with H2O on Si/SiO2 substrates that were heated at 200 °C. The low growth rate (0.15 Å/cycle) and the in situ characterization permitted to follow changes in the electronic structure of TiO2 in the sub-nanometer range, which are influenced by q...