OXIDATION OF DELAFOSSITE-TYPE COMPOUNDS BY CHIMIE DOUCE

被引：0
|
作者：
TRARI, M
DOUMERC, JP
POUCHARD, M
HAGENMULLER, P
ELAZHARI, M
AMMAR, A
ELAATMANI, M
机构：
[1] UNIV CADI AYYAD,FAC SCI,CHIM SOLIDE MINERAL LAB,MARRAKECH,MOROCCO
[2] CNRS,CHIM SOLIDE LAB,F-33405 TALENCE,FRANCE
来源：
ANNALES DE CHIMIE-SCIENCE DES MATERIAUX | 1994年 / 19卷 / 7-8期
关键词：
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Oxidation of CuLa1-xYxO2 solid solutions have been carried out with hypohalites aqueous solutions. Oxide ion intercalation end oxidation of Cu+ into Cu2+ are evidenced by color change, TGA, iodonwttric titration and magnetic measurements. Whereas for x=0 and 0.5 CuLa1-xYxO2+delta appears as a single phase, CuYO2+delta (x=1) corresponds to a two-phase mixture, with respectively low and high delta-value, the latter being isostructural with the thermally oxidized compound recently reported by Cava et al.. Comparison is stressed between the oxides obtained by oxidation at room and at higher temperatures.
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页码：521 / 524
页数：4
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