Enhanced hydrogen adsorptivity of single-wall carbon nanotube bundles by one-step c60-pillaring method.

Arai, Miki; Utsumi, Shigenori; Kanamaru, Mamiko; Urita, Koki; Fujimori, Toshihiko; Yoshizawa, Noriko; Noguchi, Daisuke; Nishiyama, Katsuhiro et al. · Nano Lett · 2009

basic_science · Level V

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Abstract

Single-wall carbon nanotube (SWCNT) bundles were pillared by fullerene (C60) by the cosonication of C60 and SWCNT in toluene to utilize the interstitial pores for hydrogen storage. C60-pillared SWCNTs were confirmed by the shift in the X-ray diffraction peak and the expanded hexagonal and distorted tetragonal bundles revealed by high-resolution transmission electron microscopy. The H2 adsorptivity of the C60-pillared SWCNT bundles was twice that of the original SWCNT bundles, indicating a design route for SWCNT hydrogen storage.