Mechanochemical synthesis of zinc ferrite from zinc oxide and α-Fe2O3

被引：58

作者：

Kim, W ^{[1
]}

Saito, F ^{[1
]}

机构：

[1] Tohoku Univ, Inst Adv Mat Proc, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

POWDER TECHNOLOGY | 2001年 / 114卷 / 1-3期

关键词：

mechanochemical synthesis; zinc ferrite; zinc oxide; hematite; planetary ball mill;

D O I：

10.1016/S0032-5910(00)00256-4

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Mechanochemical synthesis of zinc ferrite (ZnFe2O4) from a powder mixture of zinc oxide (ZnO) and hematite (alpha -Fe2O3) by room temperature grinding using a planetary ball mill was investigated. The grinding enables us to obtain the amorphous mixture of the starting materials. Most of ZnO reacts with alpha -Fe2O3 to convert into insoluble amorphous zinc and iron compounds within 2h-grinding. Prolonged grinding enhances the crystallization of ZnFe2O4 from the amorphous compounds. ZnFe2O4 crystallized by the grinding for 3 h or more consists of nanocrystalline particles with high specific surface area. (C) 2001 Elsevier Science S.A. All rights reserved.

引用

页码：12 / 16

页数：5

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