Zn(Ga,Fe)2O4固溶体尖晶石结构中阳离子分布研究

doi:10.3724/SP.J.1077.2008.00190

无机材料学报

Zn(Ga,Fe)₂O₄固溶体尖晶石结构中阳离子分布研究

王静^1,2, 邓彤², 杨彩琴¹, 王伟¹

(1. 河北医科大学药学院, 石家庄 050071; 2. 中国科学院过程工程研究所, 北京 100081)

收稿日期:2007-01-09 修回日期:2007-04-02 出版日期:2008-01-20 网络出版日期:2008-01-20

Cation Distribution in Zn(Ga,Fe)₂O₄ Solid Solutions with Spinel Structure

WANG Jing ^1,2, DENT Tong², YANG Cai-Qin¹, WANG Wei¹

(1. School of Pharmaceutical Sciences, Hebei Medical University, Shijiazhuang 050017, China; 2. Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100081, China)

Received:2007-01-09 Revised:2007-04-02 Published:2008-01-20 Online:2008-01-20

摘要/Abstract

摘要： 应用X射线衍射密度法Zn(Ga,Fe)₂O₄(R因子法)计算了Zn(Ga,Fe)₂O₄固溶体尖晶石结构中阳离子分布, 结果表明: 金属离子在ZnGa2O4尖晶石结构中采取中间偏反型分布. 随Fe³⁺离子进入尖晶石结构, 促使Zn²⁺进入A位的量增多, 而Ga³⁺进入B位的量增多. 同时, 各样品的IR光谱表明: Fe³⁺进入尖晶石结构取代Ga ³⁺对代表电子传导活化能的极限频率影响很大.

关键词: R因子, Zn(Ga,Fe)₂O₄, 尖晶石结构

Abstract: The cation distribution in Zn(Ga,Fe)₂O₄ solid solutions with spinel structure were calculated by using the X-ray powder diffraction density method (R factor Method). The results indicate that the cations show osculant but lean to inverse distribution in Zn(Ga,Fe)₂O₄. With Fe³⁺ introduction into the spinel structure of Zn(Ga,Fe)₂O₄, the Zn²⁺ concentration in A sites and Ga³⁺ concentration in B sites increase. Meanwhile, the IR spectra of samples indicate threshold frequency representing the activation energy for electron conduction is affected sharply by the substitution of Fe³⁺ for Ga^3+.

Key words: R factors, Zn(Ga,Fe)₂O₄, spinel structure

中图分类号:

TB32

王静,邓彤,杨彩琴,王伟. Zn(Ga,Fe)₂O₄固溶体尖晶石结构中阳离子分布研究[J]. 无机材料学报, DOI: 10.3724/SP.J.1077.2008.00190.

WANG Jing,DENT Tong,YANG Cai-Qin,WANG Wei. Cation Distribution in Zn(Ga,Fe)₂O₄ Solid Solutions with Spinel Structure[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2008.00190.

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Zn(Ga,Fe)₂O₄固溶体尖晶石结构中阳离子分布研究

Cation Distribution in Zn(Ga,Fe)₂O₄ Solid Solutions with Spinel Structure

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