Synthesis of ultrafine TiO2 by citrate gel method

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

doi:10.1016/S0025-5408(03)00180-6

Synthesis of ultrafine TiO₂ by citrate gel method

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

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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 language	English (US)
Pages (from-to)	1623-1628
Number of pages	6
Journal	Materials Research Bulletin
Volume	38
Issue number	11-12
DOIs	https://doi.org/10.1016/S0025-5408(03)00180-6
State	Published - Oct 1 2003

Keywords

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

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/S0025-5408(03)00180-6

Cite this

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title = "Synthesis of ultrafine TiO2 by citrate gel method",

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.",

keywords = "A. Ceramics, A. Oxides, B. Chemical synthesis, C. Thermogravimetric analysis (TGA), C. X-ray diffraction",

author = "Dhage, {S. R.} and Renu Pasricha and V. Ravi",

note = "Funding Information: The authors are thankful to Department of Science and Technology, Grant No. Sp/S1/H-19/2000, New Delhi, India for financial support.",

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T1 - Synthesis of ultrafine TiO2 by citrate gel method

AU - Dhage, S. R.

AU - Pasricha, Renu

AU - Ravi, V.

N1 - Funding Information: The authors are thankful to Department of Science and Technology, Grant No. Sp/S1/H-19/2000, New Delhi, India for financial support.

PY - 2003/10/1

Y1 - 2003/10/1

N2 - 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.

AB - 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.

KW - A. Ceramics

KW - A. Oxides

KW - B. Chemical synthesis

KW - C. Thermogravimetric analysis (TGA)

KW - C. X-ray diffraction

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