Synthesis and characterization of perovskite-type CaPbO3

Ayako Yamamoto, Nellie Khasanova, Xiao Jing Wu, Keiichi Tanabe

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have synthesized a new perovskite-type compound with nominal composition CaPbO3 under about 6 GPa using a cubic-anvil-type apparatus from a mixed powder of high-purity CaO and PbO2. The XRD pattern was indexed on the basis of an orthorhombic unit cell with a = 5.667(1) Å, b = 5.879(1) Å and c = 8.147(2) Å. This compound has a distorted perovskite-type structure, while two previously reported types of CaPbO3 have a fluorite-type structure and an ilmenate-type structure. EDX analysis and the unit cell parameters suggest a deficiency in the Ca site. The electrical resistivity of this compound at room temperature was very high ( > 105 Ω cm) in contrast to the metallic and semiconducting conductivity of BaPbO3 and SrPbO3, respectively.

Original languageEnglish
Pages (from-to)333-336
Number of pages4
JournalSolid State Ionics
Volume108
Issue number1-4
Publication statusPublished - 1998 May 1
Externally publishedYes

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Perovskite
Fluorspar
fluorite
synthesis
anvils
cells
Powders
Energy dispersive spectroscopy
purity
conductivity
electrical resistivity
room temperature
Chemical analysis
Temperature
perovskite

Keywords

  • Ca-Pb-O
  • Crystal structure
  • High-pressure synthesis

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Yamamoto, A., Khasanova, N., Wu, X. J., & Tanabe, K. (1998). Synthesis and characterization of perovskite-type CaPbO3 Solid State Ionics, 108(1-4), 333-336.

Synthesis and characterization of perovskite-type CaPbO3 . / Yamamoto, Ayako; Khasanova, Nellie; Wu, Xiao Jing; Tanabe, Keiichi.

In: Solid State Ionics, Vol. 108, No. 1-4, 01.05.1998, p. 333-336.

Research output: Contribution to journalArticle

Yamamoto, A, Khasanova, N, Wu, XJ & Tanabe, K 1998, 'Synthesis and characterization of perovskite-type CaPbO3 ', Solid State Ionics, vol. 108, no. 1-4, pp. 333-336.
Yamamoto A, Khasanova N, Wu XJ, Tanabe K. Synthesis and characterization of perovskite-type CaPbO3 Solid State Ionics. 1998 May 1;108(1-4):333-336.
Yamamoto, Ayako ; Khasanova, Nellie ; Wu, Xiao Jing ; Tanabe, Keiichi. / Synthesis and characterization of perovskite-type CaPbO3 In: Solid State Ionics. 1998 ; Vol. 108, No. 1-4. pp. 333-336.
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