Effect of Na diffusion on the formation of fibrous microcrystals of manganese oxide

被引：17

作者：

Eftekhari, A ^{[1
]}

Kazemad, M ^{[1
]}

Moztarzadeh, F ^{[1
]}

机构：

[1] Mat & Energy Res Ctr, Lab Electrochem, Tehran, Iran

来源：

MATERIALS RESEARCH BULLETIN | 2005年 / 40卷 / 12期

关键词：

nanostructures; intercalation reactions; electron microscopy; diffusion;

D O I：

10.1016/j.materresbull.2005.06.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Diffusion of sodium through MnO2 lattice in a high-temperature solid-state reaction can affect the original structure of manganese oxide. This effect is significantly concentration-dependent. For x < 0.5 in NaxMnO2, the chemical structure of sodium manganese oxide is accompanied by the formation of manganese oxide nanowires. The amount of such nanowires increases by increasing the concentration. For x > 0.5, it tends to form conventional layered structure (with microscale particles). In the case of MnO2, this phenomenon is only for Na diffusion, when a chemical structure corresponding to Na0.44MnO2 (JCPDS: 27-0750) is formed. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2205 / 2211

页数：7

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