Paper Title:
Synthesis of Titania Nanoparticles via Spark Discharge Method Using Air as a Carrier
  Abstract

A pulsed spark-discharge aerosol generator using air as a carrier gas was successfully applied to the titania nanoparticle production. The titanium vapor evaporated by spark discharge was subsequently supersaturated and condensed to titania nanoparticles by nucleation and condensation. The size and concentration of the particles can be controlled easily using air as a carrier gas by altering the repetition frequency, capacitance, gap distance, and flow rate of the spark-discharge system. TEM observation shows that the generated particles were aggregates, which primary particle sizes are a few nanometers. The element composition of the nanoparticles was titanium and the crystal phase was amorphous. XPS analysis shows that oxidation state of generated particles corresponded to TiO2. These XPS data indicates that some fraction of the evaporated titanium vapor could be oxidized in an air atmosphere by the oxidation with oxygen. However, enough time for crystallization was lacked because of raid cooling.

  Info
Periodical
Materials Science Forum (Volumes 544-545)
Edited by
Hyungsun Kim, Junichi Hojo and Soo Wohn Lee
Pages
143-146
DOI
10.4028/www.scientific.net/MSF.544-545.143
Citation
H. C. Oh, J. H. Ji, J. H. Jung, S. S. Kim, "Synthesis of Titania Nanoparticles via Spark Discharge Method Using Air as a Carrier", Materials Science Forum, Vols. 544-545, pp. 143-146, 2007
Online since
May 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: A. Nakaruk, H.Z. Abdullah, J.S. Yun, D.A. Hanaor, Charles C. Sorrell
144
Authors: João Victor Marques Zoccal, Fábio de Oliveira Arouca, José Renato Coury, José Antônio Silveira Gonçalves
Chapter 2: Ceramics I
Abstract:Advances in scientific research in the field of nanotechnology sparked an increase in technological and industrial applications involving...
861
Authors: Maurielem Guterres Dalcin, Deivid Marques Nunes, J.J.R. Damasceno, F.O. Arouca
Chapter 1: Synthesis
Abstract:The nanotechnology has become an important area, either because the special features of nanometric particles confer to products, or due to a...
197
Authors: Alexey A. Efimov, Anna A. Lizunova, Elena G. Kalinina, Valentin S. Sukharev, Victor V. Ivanov
Abstract:We have developed an aerosol-based technique for deposition of monodisperse ensembles of spherical SiO2 nanoparticles on the...
53
Authors: Reza Saifi, Afshin Shaygani, Mahdi Sani, Mohammad Said Saidi
Abstract:Aerosol measurement is used in a variety of fields such as nanotechnology, materials science, pollution monitoring, air quality measurements,...
73