AN EXAFS INVESTIGATION ON COPPER(I-II) RELATED NASICON-TYPE PHOSPHATES

被引：11

作者：

FARGIN, E ^{[1
]}

BUSSEREAU, I ^{[1
]}

OLAZCUAGA, R ^{[1
]}

LEFLEM, G ^{[1
]}

CARTIER, C ^{[1
]}

DEXPERT, H ^{[1
]}

机构：

[1] UNIV PARIS 11,MEN,CEA,UTILISAT RAYONNEMENT ELECTROMAGNET LAB,CNRS,F-91405 ORSAY,FRANCE

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1994年 / 112卷 / 01期

关键词：

D O I：

10.1006/jssc.1994.1283

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

An extended X-ray absorption fine structure study at the copper K-edge of Nasicon-type phosphates with formulas Cu(I)M(2)(PO4)(3) (M = Ti, Zr), A(1-x)Cu(x)(I)Zr(2)(PO4)(3) (0 < x less than or equal to 1, A = Na; x = 0.5, A = H) and Cu(0.5)(II)M(2)(PO4)(3) (M = Ti, Zr) is reported. For (CuZr2)-Zr-I(PO4)(3), (H0.5Cu0.5Zr2)-Zr-I(PO4)(3) and (Na1-xCuxZr2)-Zr-I(PO4)(3) (0 < x less than or equal to 1) copper pairs have been evidenced (Cu-I-Cu-I = 2.40 Angstrom) in the M(1) site of the Nasicon structure. In contrast, for the copper(II) phosphates, the Cu2+ ions are surrounded by four oxygen atoms at about 1.95 Angstrom. Copper distribution in these various materials is discussed in relation to structural parameters. (C) 1994 Academic Press, Inc.

引用

页码：176 / 181

页数：6

共 25 条

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