磁赤铁矿修饰的多壁碳纳米管的拉曼、EELS 和 XPS 研究。
Raman, EELS and XPS studies of maghemite decorated multi-walled carbon nanotubes.
机构信息
State Key Laboratory of Structural Analysis for Industrial Equipment, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116024, PR China; Nanoelectronics Centre, Advanced Technology Institute, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom.
Nanoelectronics Centre, Advanced Technology Institute, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2014;121:715-8. doi: 10.1016/j.saa.2013.11.101. Epub 2013 Nov 28.
Iron oxide particles with the diameter being 5-10 nm were attached onto the sidewalls of multi-walled carbon nanotubes (MWCNTs) by the thermal decomposition of cyclopentadieny iron (II) dicarbonyl dimmer. The red shift of G-mode from 1579 cm(-1) to 1571 cm(-1) in the Raman profile of the decorated MWCNTs is indicative of the attachment of nanoparticles. Electron energy loss spectroscopy and X-ray photoelectron spectroscopy analyses reveals that the attached nanoparticles are composed of a maghemite phase. Transmission electron microscopy suggests the maghemite particles are covered with amorphous carbon materials and form a core-shell structure.
直径为 5-10nm 的氧化铁颗粒通过环戊二烯基二羰基二铁的热分解附着在多壁碳纳米管 (MWCNTs) 的侧壁上。修饰后的 MWCNTs 的拉曼谱中 G 模式从 1579cm(-1)红移到 1571cm(-1)，表明纳米颗粒的附着。电子能量损失谱和 X 射线光电子能谱分析表明，附着的纳米颗粒由γ-氧化铁相组成。透射电子显微镜表明，γ-氧化铁颗粒被非晶碳材料覆盖，并形成核壳结构。
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