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Ga-Fe_3O_4的室温合成和谱学表征
Authors
吴海艳
杨彩琴
+4 more
林玉龙
王伟
王静
邓彤
Publication date
1 January 2008
Publisher
Abstract
采用氧化-沉淀法在室温下合成了不同Ga含量的Ga取代磁铁矿,并对上述产物进行了IR,XRD,Mossbauer等谱学解析和磁滞回线的测量。结果表明:Ga取代磁铁矿的生成可能经过Ga取代的绿锈中间体,但这种中间体在热N2干燥的条件下就能转化成产物磁铁矿;随Ga进入尖晶石结构中,产物的XRD分析表明其晶面间距减小,IR光谱分析表明标志MT—O—MO的振动吸收峰向高波数移动。少量的Ga进入尖晶石结构优先占据A位,且初始溶液中含有少量Ga^3+能一定程度抑制非磁性的Fe2O3的生成;随Ga含量的增加,其进入B位的趋势增加
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Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/36299
Last time updated on 05/12/2019
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.ipe.ac.cn:122111/36297
Last time updated on 05/12/2019