LOW-TEMPERATURE PREPARATION OF MANGANESE COBALTITE SPINELS [MNXCO3-XO4(0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-1)]

被引：33

作者：

DEVIDALES, JLM

GARCIAMARTINEZ, O

VILA, E

ROJAS, RM

TORRALVO, MJ

机构：

[1] CSIC,INST CIENCIA MAT,E-28006 MADRID,SPAIN

[2] UCM,FAC QUIM,DEPT QUIM INORGAN,E-28040 MADRID,SPAIN

来源：

MATERIALS RESEARCH BULLETIN | 1993年 / 28卷 / 11期

关键词：

MANGANESE COBALTITES; SPINELS-TYPE COBALTITES; SOLID SOLUTION;

D O I：

10.1016/0025-5408(93)90093-S

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A route of low temperature preparation of manganese cobaltite spinels MnxCo3-xO4 (0 less-than-or-equal-to X less-than-or-equal-to 1) is described. Gels obtained by addition of n-butylamine to mixed Co2+ and Mn2+ solutions, after aged at 80-degrees and heated at 200-degrees-C correspond to the spinel-type material. Manganese cobaltite MnCo2O4 obtained by this procedure shows surface area (BET) of 44 m2/g, and a mean crystallite size of 11 nm. Cell parameter of MnCo2O4 is smaller that the reported for this material obtained by the ceramic procedure; it seems to indicate the existence of Mn3+ in the spinel-type phase when it is prepared by this low temperature method.

引用

页码：1135 / 1143

页数：9