in this paper, indium tin oxide (ito) nanoparticles has been prepared by chemical methods under given conditions with solution of indium chloride (incl3·4h2o), tin chloride (sncl4·5h2o) in ammonia solution. the samples were characterized by x-ray diffraction (xrd) and scanning electron microscopy (sem) analyses after heat treatments. the sem results showed that, the size of the ito particles pr...

A novel titanium dioxide paste based on Pechini sol-gel method and nanocrystalline TiO2 powder has been successfully developed and tested. The paste enables the formation of sponge like structure of the TiO2 layer i.e. highly porous and at the same time well connected TiO2 network. The layers have been used to assemble dye sensitized solar cells (DSSC) with two ruthenium complex based dyes, N71...

The performance of LaMnxNi1-xO3±δ perovskite mixed oxides (x = 0, 0.1, 0.3, 0.5, 0.7, 0.9, 1) which were prepared by different methods, the Pechini and sol-gel methods in the oxidation of greenhouse gases, CH4 and CO, has been investigated. All samples were characterized using Fourier transform infrared spectroscopy, X-ray diffraction, scanning electr...

YVO4:Eu ,Bi phosphors have been prepared by the high-temperature solid-state (HT) method and the Pechini-type sol–gel (SG) method. Spherical SiO2 particles have been further coated with YVO4:Eu ,Bi phosphor layers by the Pechini-type SG process, and it leads to the formation of core–shell structured SiO2/YVO4:Eu ,Bi phosphors. Therefore, the phase formations, structures, morphologies, and photo...

Nanocrystalline undoped b-Ga2O3 and Dy -doped b-Ga2O3 were prepared through a Pechini-type sol-gel process. All the samples began to crystallize at 600°C, and the crystallinity increased with the increase of annealing temperatures until 1000°C. Field emission-scanning electron microscopy study revealed that the b-Ga2O3 :Dy 31 sample is composed of aggregated particles with sizes ranging from 40...

In this work, neodymium (Nd3+) doped strontium hexaferrite was obtained using the sol–gel based Pechini method. The cation distribution modified by doping with different amounts of Nd3+ ions when 0.0 ? x 0.4 according to chemical expression Sr1-xNdxFe12O19 powders were sintered at 1100 °C for 1 h. influence analyzed, and magnetic structural properties have been associated fabrication crystallin...

Barium-strontium titanate (BST) Ba0.6Sr 0.4 TiO3 and lanthanum-lithium titanate (LLT) La0.5Li0.5TiO3 nanopowders and thin films have been obtained via the modified Pechini route. Polyesterification and complexation processes of gel formation have been examined. Hypothetical models of coordinative polymers formed in sol-gel system have been suggested. It has been shown that BST and LLT solid sol...

In this paper, indium tin oxide (ITO) nanoparticles has been prepared by chemical methods under given conditions with solution of indium chloride (InCl3·4H2O), tin chloride (SnCl4·5H2O) in ammonia solution. The samples were characterized by X-ray Diffraction (XRD) and scanning electron microscopy (SEM) analyses after heat treatments. The SEM results showed that, the size of the ITO particles pr...

In situ x-ray diffraction was used to optimize the synthesis of Aurivillius structure ceramic powders. Powders were prepared via conventional solid-state synthesis and the Pechini polymer precursor method. The phases Bi4Ti3O12, and Bi2Sr2Nb2TiO12 were studied. The Bi4Ti3O12 phase formed easily, regardless of processing route, between 400-500C and phase purity was achieved by 700C when using the...