Entrapping of exohedral metallofullerenes in carbon nanotubes: (CsC60)n@SWNT nano-peapods.
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.
Sun
Bao-Yun
BY
Department of Chemistry and Institute for Advanced Research, Nagoya University, Nagoya 464-8602, Japan.
Sato
Yuta
Y
Suenaga
Kazutomo
K
Okazaki
Toshiya
T
Kishi
Naoki
N
Sugai
Toshiki
T
Bandow
Shunji
S
Iijima
Sumio
S
Shinohara
Hisanori
H