Synthesis of a new compound, Ca0.8Ce1.2Sn2O7, with pyrochlore structure

Naoki Wakiya; Nobuo Kieda; Atsushi Saiki; Kazuo Shinozaki; Nobuyasu Mizutani

doi:10.1016/0022-4596(91)90340-N

Synthesis of a new compound, Ca_0.8Ce_1.2Sn₂O₇, with pyrochlore structure

Naoki Wakiya^*, Nobuo Kieda, Atsushi Saiki, Kazuo Shinozaki, Nobuyasu Mizutani

^*Corresponding author for this work

Materials Design and Engineering

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

10 Scopus citations

Abstract

A new compound of the formula Ca_2XCe_2-2XSn₂O₇, wherein 0.35 ≦ X ≦ 0.43, with cubic pyrochlore structure was synthesized by a solid state reaction at 1450°C. Rietveld analysis based on A site substitution gave evidence that this new compound belonged to Fd3m with cubic pyrochlore structure. It was expected from chemical analysis that some of the Ce ions at the A site should be trivalent to maintain electrical neutrality of the whole crystal. This expectation is justified by the description of average ionic radii in the A site of this new pyrochlore and the model of Rietveld analysis.

Original language	English
Pages (from-to)	320-326
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	92
Issue number	2
DOIs	https://doi.org/10.1016/0022-4596(91)90340-N
State	Published - 1991/06

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/0022-4596(91)90340-N

Cite this

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title = "Synthesis of a new compound, Ca0.8Ce1.2Sn2O7, with pyrochlore structure",

abstract = "A new compound of the formula Ca2XCe2-2XSn2O7, wherein 0.35 ≦ X ≦ 0.43, with cubic pyrochlore structure was synthesized by a solid state reaction at 1450°C. Rietveld analysis based on A site substitution gave evidence that this new compound belonged to Fd3m with cubic pyrochlore structure. It was expected from chemical analysis that some of the Ce ions at the A site should be trivalent to maintain electrical neutrality of the whole crystal. This expectation is justified by the description of average ionic radii in the A site of this new pyrochlore and the model of Rietveld analysis.",

author = "Naoki Wakiya and Nobuo Kieda and Atsushi Saiki and Kazuo Shinozaki and Nobuyasu Mizutani",

year = "1991",

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doi = "10.1016/0022-4596(91)90340-N",

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journal = "Journal of Solid State Chemistry",

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TY - JOUR

T1 - Synthesis of a new compound, Ca0.8Ce1.2Sn2O7, with pyrochlore structure

AU - Wakiya, Naoki

AU - Kieda, Nobuo

AU - Saiki, Atsushi

AU - Shinozaki, Kazuo

AU - Mizutani, Nobuyasu

PY - 1991/6

Y1 - 1991/6

N2 - A new compound of the formula Ca2XCe2-2XSn2O7, wherein 0.35 ≦ X ≦ 0.43, with cubic pyrochlore structure was synthesized by a solid state reaction at 1450°C. Rietveld analysis based on A site substitution gave evidence that this new compound belonged to Fd3m with cubic pyrochlore structure. It was expected from chemical analysis that some of the Ce ions at the A site should be trivalent to maintain electrical neutrality of the whole crystal. This expectation is justified by the description of average ionic radii in the A site of this new pyrochlore and the model of Rietveld analysis.

AB - A new compound of the formula Ca2XCe2-2XSn2O7, wherein 0.35 ≦ X ≦ 0.43, with cubic pyrochlore structure was synthesized by a solid state reaction at 1450°C. Rietveld analysis based on A site substitution gave evidence that this new compound belonged to Fd3m with cubic pyrochlore structure. It was expected from chemical analysis that some of the Ce ions at the A site should be trivalent to maintain electrical neutrality of the whole crystal. This expectation is justified by the description of average ionic radii in the A site of this new pyrochlore and the model of Rietveld analysis.

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U2 - 10.1016/0022-4596(91)90340-N

DO - 10.1016/0022-4596(91)90340-N

M3 - 学術論文

AN - SCOPUS:0042030839

SN - 0022-4596

VL - 92

SP - 320

EP - 326

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

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