PREPARATION OF MONODISPERSED MANGANESE (IV) OXIDE PARTICLES FROM MANGANESE (II) CARBONATE

被引：33

作者：

HAMADA, S ^{[1
]}

KUDO, Y ^{[1
]}

OKADA, J ^{[1
]}

KANO, H ^{[1
]}

机构：

[1] SCI UNIV TOKYO,INST COLLOID & INTERFACE SCI,SHINJUKU KU,TOKYO 162,JAPAN

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1987年 / 118卷 / 02期

关键词：

OXIDES; -; Fabrication;

D O I：

10.1016/0021-9797(87)90470-X

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：

Spherical and monoclinic-like manganese (IV) oxide particles of moderately narrow size distribution were prepared by conversion of carbonates obtained by simple mixing and aging procedures. The conversion of manganese (II) carbonates gave gamma -manganese (IV) oxide particles having the composition MnO//1//. //8//0// minus //1//. //9//0 and retaining the morphology of the mother crystals under air (300-400 degree C) and oxygen (400 degree C) atmospheres. The isoelectric point and point of zero charge of the oxides thus obtained were determined as pH 3. 5 and 4. 0, respectively.

引用

页码：356 / 365

页数：10

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