Synthesis of ultrafine TiO2 by citrate gel method

S. R. Dhage, Renu Pasricha, V. Ravi

Research output: Contribution to journalArticle

Abstract

A gel was formed when a mixture of TiOCl2 and citric acid is heated on a water bath. An ultrafine powder of TiO2 in the anatase phase is formed, when the gel was decomposed at 623K. The anatase phase is converted into rutile phase on annealing at higher temperatures >773K. These powders are characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and surface area measurements. The average particle size obtained for anatase phase is 3.5nm whereas it is 45nm for rutile phase.

Original languageEnglish (US)
Pages (from-to)1623-1628
Number of pages6
JournalMaterials Research Bulletin
Volume38
Issue number11-12
DOIs
StatePublished - Oct 1 2003

Keywords

  • A. Ceramics
  • A. Oxides
  • B. Chemical synthesis
  • C. Thermogravimetric analysis (TGA)
  • C. X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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