Entrapping of Exohedral Metallofullerenes in Carbon Nanotubes: (CsC60)n@SWNT Nano-Peapods

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• 作者：Bao-Yun Sun ; Yuta Sato ; Kazutomo Suenaga ; Toshiya Okazaki ; Naoki Kishi ; Toshiki Sugai ; Shunji Bandow ; Sumio Iijima ; and Hisanori Shinohara
• 刊名：Journal of the American Chemical Society
• 出版年：2005
• 出版时间：December 28, 2005
• 年：2005
• 卷：127
• 期：51
• 页码：17972 - 17973
• 全文大小：240K
• 年卷期：v.127,no.51(December 28, 2005)
• ISSN：1520-5126

文摘

Exohedral C₆₀-based metallofullerenes, CsC₆₀, have been synthesized and successfully encapsulated into single-wall carbon nanotubes (SWNTs) in high yield by reducing C₆₀ molecules into anions. High-resolution transmission electron microscopy (HRTEM) images and in situ electron energy loss spectroscopy (EELS) indicate that Cs atoms and C₆₀ molecules align within SWNTs as CsC₆₀ exohedral metallofullerenes, and that the formal charge state of encaged CsC₆₀ is expressed as Cs⁺¹C₆₀^-1. The present peapods with the exohedral metallofullerenes provide a new insight and the possibility to fine-tune the electronic and transport properties of carbon nanotubes.