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
收藏
页码：1135 / 1143
页数：9
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