Phase-Selective Growth of Assembled FeSe2 Nanorods from Organometallic Polymers and Their Surface Magnetism

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• 作者：Juan Xu ; Kwonho Jang ; Jeho Lee ; Hae Jin Kim ; Jaehong Jeong ; Je-Geun Park ; Seung Uk Son
• 刊名：Crystal Growth & Design
• 出版年：2011
• 出版时间：July 6, 2011
• 年：2011
• 卷：11
• 期：7
• 页码：2707-2710
• 全文大小：831K
• 年卷期：v.11,no.7(July 6, 2011)
• ISSN：1528-7505

文摘

By an organometallic approach based on 1,2,3-triselena[3]ferrocenophane, assembled FeSe₂ nanorods were phase-selectively prepared. Abstraction of the central selenium from 1,2,3-triselena[3]ferrocenophane by reaction with triphenylphosphite resulted in organometallic polymers through Se鈥揝e bond formation. Successive heating of the polymers in the presence of oleylamine resulted in formation of the assembled FeSe₂ nanorods, which were characterized by scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, powder X-ray diffraction, and X-ray photoelectron spectroscopy analysis. Interestingly, the obtained FeSe₂ nanorods underwent air oxidation readily to form a magnetic coating on the surface. These observations are suggestive toward preparation of magnetically coated core/shell type semiconductor nanomaterials.