An oxygen-rich pyrochlore with fluorite composition

JB Thomson; AR Armstrong; Peter George Bruce

An oxygen-rich pyrochlore with fluorite composition

JB Thomson, AR Armstrong, Peter George Bruce

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

Abstract

Oxygen has been intercalated into the pyrochlore Ce2Zr2O7 by heating under oxygen at a moderate temperature. A composition approaching fluorite (Ce2Zr2O7.97) has been obtained while retaining pyrochlore cation ordering. Whereas in flourite all oxide ions are in tetrahedral sites, the oxygen-rich pyrochlore exhibits vacancies in some tetrahedral sites and occupancy of a new trigonal site. The latter arises from oxide ions in octahedral 32e sites within the pyrochlore cation array. (C) 1999 Academic Press.

Original language	English
Pages (from-to)	56-62
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	148
Publication status	Published - 15 Nov 1999

Keywords

CHEMICAL INTERCALATION
ELECTROCHEMICAL OXIDATION
LA2CUO4

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title = "An oxygen-rich pyrochlore with fluorite composition",

abstract = "Oxygen has been intercalated into the pyrochlore Ce2Zr2O7 by heating under oxygen at a moderate temperature. A composition approaching fluorite (Ce2Zr2O7.97) has been obtained while retaining pyrochlore cation ordering. Whereas in flourite all oxide ions are in tetrahedral sites, the oxygen-rich pyrochlore exhibits vacancies in some tetrahedral sites and occupancy of a new trigonal site. The latter arises from oxide ions in octahedral 32e sites within the pyrochlore cation array. (C) 1999 Academic Press.",

keywords = "CHEMICAL INTERCALATION, ELECTROCHEMICAL OXIDATION, LA2CUO4",

author = "JB Thomson and AR Armstrong and Bruce, \{Peter George\}",

year = "1999",

month = nov,

day = "15",

language = "English",

volume = "148",

pages = "56--62",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press/Elsevier ",

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TY - JOUR

T1 - An oxygen-rich pyrochlore with fluorite composition

AU - Thomson, JB

AU - Armstrong, AR

AU - Bruce, Peter George

PY - 1999/11/15

Y1 - 1999/11/15

N2 - Oxygen has been intercalated into the pyrochlore Ce2Zr2O7 by heating under oxygen at a moderate temperature. A composition approaching fluorite (Ce2Zr2O7.97) has been obtained while retaining pyrochlore cation ordering. Whereas in flourite all oxide ions are in tetrahedral sites, the oxygen-rich pyrochlore exhibits vacancies in some tetrahedral sites and occupancy of a new trigonal site. The latter arises from oxide ions in octahedral 32e sites within the pyrochlore cation array. (C) 1999 Academic Press.

AB - Oxygen has been intercalated into the pyrochlore Ce2Zr2O7 by heating under oxygen at a moderate temperature. A composition approaching fluorite (Ce2Zr2O7.97) has been obtained while retaining pyrochlore cation ordering. Whereas in flourite all oxide ions are in tetrahedral sites, the oxygen-rich pyrochlore exhibits vacancies in some tetrahedral sites and occupancy of a new trigonal site. The latter arises from oxide ions in octahedral 32e sites within the pyrochlore cation array. (C) 1999 Academic Press.

KW - CHEMICAL INTERCALATION

KW - ELECTROCHEMICAL OXIDATION

KW - LA2CUO4

UR - https://www.scopus.com/pages/publications/0002655258

M3 - Article

SN - 0022-4596

VL - 148

SP - 56

EP - 62

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

ER -

An oxygen-rich pyrochlore with fluorite composition

Abstract

Keywords

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