ANIONIC CLAYS WITH VARIABLE VALENCE CATIONS - SYNTHESIS AND CHARACTERIZATION OF [CO1-XALX(OH)2](CO3)X/2.NH2O

被引：88

作者：

ULIBARRI, MA

FERNANDEZ, JM

LABAJOS, FM

RIVES, V

机构：

[1] UNIV SALAMANCA,FAC FARM,DEPT QUIM INORGAN,SALAMANCA,SPAIN

[2] UNIV CORDOBA,FAC CIENCIAS,DEPT QUIM INORGAN & INGENIERIA QUIM,CORDOBA,SPAIN

[3] UNIV CORDOBA,DEPT MINERIA,CORDOBA,SPAIN

来源：

CHEMISTRY OF MATERIALS | 1991年 / 3卷 / 04期

关键词：

D O I：

10.1021/cm00016a013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The synthesis of hydrotalcite-like compounds containing cobalt(II) ions in the layer lattice is described. Hydrothermal treatment of freshly precipitated materials, which is normally carried out to improve crystallinity, leads to a partial oxidation of Co(II) to Co(III) species, with simultaneous formation of a well dispersed Co3O4 spinel phase. Formation of this compound seems to be responsible for the low thermal stability observed for the Co(II)-Al(III)-CO3(2)-hydroxytalcite.

引用

页码：626 / 630

页数：5

共 27 条

[1] CRYSTAL STRUCTURE OF PYROAURITE [J].