Rhenium-Catalyzed Growth Carbon Nanotubes
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- 作者：Manfred Ritschel ; Albrecht Leonhardt ; Dieter Elefant ; Steffen Oswald ; Bernd Bü ; chner
- 刊名：Journal of Physical Chemistry C
- 出版年：2007
- 出版时间：June 21, 2007
- 年：2007
- 卷：111
- 期：24
- 页码：8414 - 8417
- 全文大小：395K
- 年卷期：v.111,no.24(June 21, 2007)
- ISSN：1932-7455
文摘
Using a modified "fixed-bed" chemical vapor deposition method, diamagnetic single-, double-, and multiwalledcarbon nanotubes were synthesized. For the first time, we show that rhenium is a suitable catalyst for thesynthesis of such diamagnetic nanotubes with uniform diameter and a defined numbers of shells. Scanningand transmission electron microscopy investigations, Raman spectroscopy, and magnetic measurements showthe tubular structure, the high crystallinity, and the diamagnetic character of the grown nanotubes. We comparethe growth mechanism of the Re-catalyzed nanotubes with the growth behavior supported by the conventionalcatalyst metals ferromagnetic iron, cobalt, and nickel.