Formation and growth mechanisms of ion-induced iron–carbon nanocomposites at room temperature

✍ Scribed by Zhipeng Wang; Mohd Zamri Mohd Yusop; Takehiko Hihara; Akari Hayashi; Yasuhiko Hayashi; Masaki Tanemura

• Book ID: 104002007
• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 726 KB
• Volume: 256
• Category: Article
• ISSN: 0169-4332
• DOI: 10.1016/j.apsusc.2010.04.019

✦ Synopsis

The irradiation of graphite surfaces with a simultaneous Fe supply have resulted into the development of various types of carbon nanocomposites. Their morphologies -diameter, density, length and apex angle strongly depend on the ratios of Fe deposition rate (D Fe ) to ion sputtering rate (S ion ). By optimizing the ratio of D Fe /S ion (2.40%), the denser and well-aligned Fe-carbon nanocomposite fibers (Fe-CNFs) could be obtained, whose average length and diameter were 0.95 m and 17 nm, respectively. As confirmed by energy-dispersive X-ray analysis, the Fe-CNFs with amorphous-like or fine-polycrystalline phase were surely composed of carbon and Fe. Two types of growth models have been employed to explain the formation of metal-carbon nanocomposites.