an oxalate-peroxide complex used in the preparation of doped barium titanate

S. van der Gijp, Aloysius J.A. Winnubst, H. Verweij

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

Abstract

A method is described for the preparation of homogeneously doped barium titanate, which can be applied in non-linear dielectric elements. Ba and Ti salts are dissolved, mixed with hydrogen peroxide and added to a solution of ammonium oxalate, resulting in the formation of an insoluble peroxo-oxalate complex. The presence of oxalate ions and a high pH are necessary for the formation after calcination of a stoichiometric and sinterable powder. To characterise the structure of the precipitating complex, the thermal decomposition of the complex is studied by means of XRD, d-TGA and FTIR. It is found that the precipitating complex is a Ti0.91Zr0.09O2(C2O4)2H2O. The calcined powder prepared with the peroxo-oxalate method contains no second phase, in contrast to powders prepared with the oxalate method and the peroxide method.
Original languageUndefined
Pages (from-to)1251-1254
Number of pages4
JournalJournal of materials chemistry
Volume5
Issue number8
DOIs
Publication statusPublished - 1998

Keywords

  • METIS-106528
  • IR-12168

Cite this

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title = "an oxalate-peroxide complex used in the preparation of doped barium titanate",
abstract = "A method is described for the preparation of homogeneously doped barium titanate, which can be applied in non-linear dielectric elements. Ba and Ti salts are dissolved, mixed with hydrogen peroxide and added to a solution of ammonium oxalate, resulting in the formation of an insoluble peroxo-oxalate complex. The presence of oxalate ions and a high pH are necessary for the formation after calcination of a stoichiometric and sinterable powder. To characterise the structure of the precipitating complex, the thermal decomposition of the complex is studied by means of XRD, d-TGA and FTIR. It is found that the precipitating complex is a Ti0.91Zr0.09O2(C2O4)2H2O. The calcined powder prepared with the peroxo-oxalate method contains no second phase, in contrast to powders prepared with the oxalate method and the peroxide method.",
keywords = "METIS-106528, IR-12168",
author = "{van der Gijp}, S. and Winnubst, {Aloysius J.A.} and H. Verweij",
year = "1998",
doi = "10.1039/a801466c",
language = "Undefined",
volume = "5",
pages = "1251--1254",
journal = "Journal of materials chemistry",
issn = "0959-9428",
publisher = "Royal Society of Chemistry",
number = "8",

}

an oxalate-peroxide complex used in the preparation of doped barium titanate. / van der Gijp, S.; Winnubst, Aloysius J.A.; Verweij, H.

In: Journal of materials chemistry, Vol. 5, No. 8, 1998, p. 1251-1254.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - an oxalate-peroxide complex used in the preparation of doped barium titanate

AU - van der Gijp, S.

AU - Winnubst, Aloysius J.A.

AU - Verweij, H.

PY - 1998

Y1 - 1998

N2 - A method is described for the preparation of homogeneously doped barium titanate, which can be applied in non-linear dielectric elements. Ba and Ti salts are dissolved, mixed with hydrogen peroxide and added to a solution of ammonium oxalate, resulting in the formation of an insoluble peroxo-oxalate complex. The presence of oxalate ions and a high pH are necessary for the formation after calcination of a stoichiometric and sinterable powder. To characterise the structure of the precipitating complex, the thermal decomposition of the complex is studied by means of XRD, d-TGA and FTIR. It is found that the precipitating complex is a Ti0.91Zr0.09O2(C2O4)2H2O. The calcined powder prepared with the peroxo-oxalate method contains no second phase, in contrast to powders prepared with the oxalate method and the peroxide method.

AB - A method is described for the preparation of homogeneously doped barium titanate, which can be applied in non-linear dielectric elements. Ba and Ti salts are dissolved, mixed with hydrogen peroxide and added to a solution of ammonium oxalate, resulting in the formation of an insoluble peroxo-oxalate complex. The presence of oxalate ions and a high pH are necessary for the formation after calcination of a stoichiometric and sinterable powder. To characterise the structure of the precipitating complex, the thermal decomposition of the complex is studied by means of XRD, d-TGA and FTIR. It is found that the precipitating complex is a Ti0.91Zr0.09O2(C2O4)2H2O. The calcined powder prepared with the peroxo-oxalate method contains no second phase, in contrast to powders prepared with the oxalate method and the peroxide method.

KW - METIS-106528

KW - IR-12168

U2 - 10.1039/a801466c

DO - 10.1039/a801466c

M3 - Article

VL - 5

SP - 1251

EP - 1254

JO - Journal of materials chemistry

JF - Journal of materials chemistry

SN - 0959-9428

IS - 8

ER -