Evolution of the formation of barium titanate in the citrate process: The effect of the pH and the molar ratio of barium ion and citric acid

Jenq Dar Tsay; Tsang Tse Fang; T. A. Gubiotti; J. Y. Ying

doi:10.1023/A:1004636219542

Evolution of the formation of barium titanate in the citrate process: The effect of the pH and the molar ratio of barium ion and citric acid

Jenq Dar Tsay^*, Tsang Tse Fang, T. A. Gubiotti, J. Y. Ying

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

In this investigation, several experiments were conducted to study the effects of the molar ratio of barium ion and citric acid and the pH value on the formation of BaTiO₃ by the citrate process. It was found that the molar ratio of barium ion and citric acid and the pH value could affect the chelation of carboxylate groups and Ba/Ti ions at temperatures below 450°C but they seemed not to influence the formation of BaTiO₃. The development of an oxycarbonate intermediate during the thermal decomposition of (Ba,Ti) gel was confirmed, which was suggested to possess a structure of BaTiO₃, whereby CO₃^-2 was located inside the layer structure.

Original language	English
Pages (from-to)	3721-3727
Number of pages	7
Journal	Journal of Materials Science
Volume	33
Issue number	14
DOIs	https://doi.org/10.1023/A:1004636219542
State	Published - 1998
Externally published	Yes

ASJC Scopus subject areas

Ceramics and Composites
Materials Science (miscellaneous)
General Materials Science
Mechanics of Materials
Mechanical Engineering
Polymers and Plastics

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title = "Evolution of the formation of barium titanate in the citrate process: The effect of the pH and the molar ratio of barium ion and citric acid",

abstract = "In this investigation, several experiments were conducted to study the effects of the molar ratio of barium ion and citric acid and the pH value on the formation of BaTiO3 by the citrate process. It was found that the molar ratio of barium ion and citric acid and the pH value could affect the chelation of carboxylate groups and Ba/Ti ions at temperatures below 450°C but they seemed not to influence the formation of BaTiO3. The development of an oxycarbonate intermediate during the thermal decomposition of (Ba,Ti) gel was confirmed, which was suggested to possess a structure of BaTiO3, whereby CO3-2 was located inside the layer structure.",

author = "Tsay, \{Jenq Dar\} and Fang, \{Tsang Tse\} and Gubiotti, \{T. A.\} and Ying, \{J. Y.\}",

year = "1998",

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journal = "Journal of Materials Science",

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T1 - Evolution of the formation of barium titanate in the citrate process

T2 - The effect of the pH and the molar ratio of barium ion and citric acid

AU - Tsay, Jenq Dar

AU - Fang, Tsang Tse

AU - Gubiotti, T. A.

AU - Ying, J. Y.

PY - 1998

Y1 - 1998

N2 - In this investigation, several experiments were conducted to study the effects of the molar ratio of barium ion and citric acid and the pH value on the formation of BaTiO3 by the citrate process. It was found that the molar ratio of barium ion and citric acid and the pH value could affect the chelation of carboxylate groups and Ba/Ti ions at temperatures below 450°C but they seemed not to influence the formation of BaTiO3. The development of an oxycarbonate intermediate during the thermal decomposition of (Ba,Ti) gel was confirmed, which was suggested to possess a structure of BaTiO3, whereby CO3-2 was located inside the layer structure.

AB - In this investigation, several experiments were conducted to study the effects of the molar ratio of barium ion and citric acid and the pH value on the formation of BaTiO3 by the citrate process. It was found that the molar ratio of barium ion and citric acid and the pH value could affect the chelation of carboxylate groups and Ba/Ti ions at temperatures below 450°C but they seemed not to influence the formation of BaTiO3. The development of an oxycarbonate intermediate during the thermal decomposition of (Ba,Ti) gel was confirmed, which was suggested to possess a structure of BaTiO3, whereby CO3-2 was located inside the layer structure.

UR - https://www.scopus.com/pages/publications/0032108689

U2 - 10.1023/A:1004636219542

DO - 10.1023/A:1004636219542

M3 - Article

AN - SCOPUS:0032108689

SN - 0022-2461

VL - 33

SP - 3721

EP - 3727

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 14

ER -

Evolution of the formation of barium titanate in the citrate process: The effect of the pH and the molar ratio of barium ion and citric acid

Abstract

ASJC Scopus subject areas

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