Results 171 to 180 of about 3,115 (218)

Ultrasonic spray pyrolysis of TiO2 nanoparticles

Nanostructured Materials, 1997
Synthesis of ultrafine spherical TiO2 particles was achieved by using ultrasonic spray pyrolysis and nanoparticles of TiO2 (approximate to 2.5nm) as a precursor. The size distribution and morphology of TiO2 particles obtained after ultrasonic spray pyrolysis were characterized by SEM and STM.
Nedeljković, Jovan, Šaponjić, Zoran, Rakočević, Zlatko, Jokanović, Vukoman, Uskoković, Dragan   +4 more
openaire   +6 more sources

Air-assisted ultrasonic spray pyrolysis for nanoparticles synthesis

SPIE Proceedings, 2002
This paper presents new findings regarding the effects of precursor drop size and concentration on product particle size and morphology in ultrasonic spray pyrolysis of zirconium hydroxyl acetate solutions. Large precursor drops (diameter >30μm) generated by ultrasonic atomization at 120kHz yielded particles with holes.
Shirley C. Tsai, Yu L. Song, C. Y. Chen, T. K. Tseng, Chen S. Tsai   +4 more
core   +3 more sources

NANOSTRUCTURED ZrO₂ POWDER SYNTHESIZED BY ULTRASONIC SPRAY PYROLYSIS [PDF]

Surface Review and Letters, 2007
The synthesis of nanostructured zirconia particles from aqueous colloidal dispersion of zirconia (zirconia sol) was carried out by ultrasonic spray pyrolysis method. The morphology of these nanostructured particles was characterized by scanning electron microscopy and transmission electron microscopy.
Marković, Jelena, Jugović, Dragana, Mitrić, Miodrag, Makovec, Darko, Milonjić, Slobodan, Uskoković, Dragan   +5 more
openaire   +5 more sources

Ultrasonic spray pyrolysis of surface modified TiO2 nanoparticles with dopamine

Materials Chemistry and Physics, 2013
Spherical, submicronic TiO2 powder particles were prepared in the low temperature process of ultrasonic spray pyrolysis (150 °C) by using as a precursor aqueous colloidal solutions consisting of surface modified 45 Å TiO2 nanoparticles with dopamine.
Dugandžić, Ivan, Jovanović, Dragana J., Mančić, Lidija, Milošević, Olivera, Ahrenkiel, Scott P., Šaponjić, Zoran, Nedeljković, Jovan   +6 more
openaire   +7 more sources

Properties of LiMn2O4 powders obtained by ultrasonic spray pyrolysis

, 2004
LiMn2O4 powders were synthesized by ultrasonic spray pyrolysis. By varying the cooling conditions. two samples of powders were obtained: quenched in water (Q) and spontaneously cooled to room temperature (SC). The crystal structure of the as-prepared powders was revealed by X-ray powder diffraction.
Jugović, Dragana, Mitrić, Miodrag, Cvjetićanin, Nikola, Miljkovic, M, Jokanović, Vukoman R., Uskoković, Dragan   +5 more
openaire   +4 more sources

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Deposition rate of anatase films by ultrasonic spray pyrolysis

Advances in Applied Ceramics, 2010
Abstract Abstract Fully dense, transparent, submicron, polycrystalline, anatase thin films, deposited for 30-120 min on glass slides heated at 400°C, were prepared by ultrasonic spray pyrolysis using titanium butoxide dissolved in methanol. The films were characterised using laser Raman microspectroscopy, single beam focused ion beam milling and ...
Auppatham Nakaruk, C C Sorrell
exaly   +2 more sources

TiO2 films prepared by ultrasonic spray pyrolysis of nanosize precursor

Materials Letters, 2002
A methodology for the preparation of the TiO2 films, based on the process of ultrasonic spray pyrolysis and usage of TiO2 nanoparticles, with the mean diameter of 45 Angstrom as a precursor, was developed. The X-ray diffraction (XRD) analysis of the TiO2
Marijana Blesic, Zoran Šaponjić, Jovan M Nedeljkovic   +2 more
exaly   +2 more sources

Designing of hollow AgI spheres by ultrasonic spray pyrolysis

Journal of Aerosol Science, 2012
Abstract A theoretical model which describes the mechanism of droplet formation, structures of the complexes used in the precursor solution and hollow AgI particles prepared by the process of ultrasonic spray pyrolysis (USP) was investigated. Theoretical approaches described very well the properties of silver iodide particles collected and aged in 2 ...
Validžić, Ivana Lj.
openaire   +3 more sources

Ultrasonic spray pyrolysis for nanoparticles synthesis

Journal of Materials Science, 2004
This article presents new findings regarding the effects of precursor drop size and precursor concentration on product particle size and morphology in ultrasonic spray pyrolysis. Large precursor drops (diameter > 30 μm) generated by ultrasonic atomization at 120 kHz yielded particles with holes due to high solvent evaporation rate, as predicted by the ...
S. C. Tsai, Y. L. Song, C. S. Tsai, C. C. Yang, W. Y. Chiu, H. M. Lin   +5 more
openaire   +1 more source

Cytotoxicity of Gold Nanoparticles Prepared by Ultrasonic Spray Pyrolysis

Journal of Biomaterials Applications, 2010
The aim of this work was to study the cytotoxicity of different fractions of gold nanoparticles prepared by ultrasonic spray pyrolysis from gold scrap. The target cells were rat thymocytes, as a type of nonproliferating cells, and L929 mouse fibroblasts, as a type of continuous proliferating cells. Fractions 1 and 2, composed of pure gold nanoparticles,
R, Rudolf, B, Friedrich, S, Stopić, I, Anžel, S, Tomić, M, Čolić   +5 more
openaire   +2 more sources