Electrochemical synthesis of Fe3O4 nanoparticles in alkaline aqueous solutions containing complexing agents
Electrochemical synthesis of Fe3O4 nanoparticles in alkaline aqueous solutions containing complexing agents
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DOI：
10.1007/s10008-003-0469-6
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发表时间：
2004-03-01
影响因子：
2.5
通讯作者：
Berthon, J
中科院分区：
文献类型：
--
作者：
Franger, S;Berthet, P;Berthon, J
通过电化学方法，在室温下，从浸入含有络合化合物的碱性水介质中的铁基电极制备超细磁铁矿颗粒。XRD和化学分析表明，产物为纯磁铁矿Fe3O4。用SEM研究了粒子的尺寸和形貌。在300 K、1 T的磁场下，磁性纳米颗粒的磁电阻率约为3%.提出了电化学过程的反应机理。
Ultrafine magnetite particles are prepared through an electrochemical process, at room temperature, from an iron-based electrode immersed in an alkaline aqueous medium containing complexing compounds. XRD and chemical analysis indicate that the product is pure magnetite, Fe3O4. The size and morphology of the particles are studied by SEM. The magnetite nanoparticles present a magnetoresistance of almost 3%, at 300 K, under a magnetic field of 1 T. A reactive mechanism for the electrochemical process is proposed.