Preparation of nanosized tin oxide (SnO2) powder by homogeneous precipitation

Acarbas O., Suvaci E., Dogan A.

CERAMICS INTERNATIONAL, vol.33, no.4, pp.537-542, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 4
  • Publication Date: 2007
  • Doi Number: 10.1016/j.ceramint.2005.10.024
  • Journal Name: CERAMICS INTERNATIONAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.537-542
  • Keywords: homogeneous precipitation, tin dioxide, nanosized ceramic particles, PARTICLES, FILMS
  • Anadolu University Affiliated: Yes

Abstract

Synthesis of nanosized SnO2 ceramic particles via homogeneous precipitation was investigated as a function of processing parameters such as initial concentration and calcination temperature. Hydrous tin oxide was precipitated from 0.01 to 1 M SnCl4-urea aqueous solutions by decomposition of urea at similar to 90 degrees C. Initial concentration has a significant effect on phase formation and crystallite size of the prepared powder. The crystallite size of tin dioxide increased with increasing initial concentration. For example, while crystallite size was 11.7 nm for 0.033 M SnCl4 system, it was 25.3 nm for 0.25 M SnCl4 system. In addition, tin dioxide particles as small as a few nanometers were obtained by homogeneous precipitation. However, calcination resulted in crystal growth and agglomeration and subsequently, reduction in the effective surface area of tin dioxide powders. (c) 2005 Elsevier Ltd and Techna Group S.r.l. All rights reserved.