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; Hattori, Yoshiyuki; Okino, Fujio; Ohba, Tomonori; Tanaka, Hideki; Kanoh, Hirofumi; Kaneko, Katsumi

doi:10.1021/nl9015733.s001

nl9015733_si_001.pdf (420.55 kB)

Enhanced Hydrogen Adsorptivity of Single-Wall Carbon Nanotube Bundles by One-Step C₆₀-Pillaring Method

journal contribution

posted on 2009-11-11, 00:00 authored by Miki Arai, Shigenori Utsumi, Mamiko Kanamaru, Koki Urita, Toshihiko Fujimori, Noriko Yoshizawa, Daisuke Noguchi, Katsuhiro Nishiyama, Yoshiyuki Hattori, Fujio Okino, Tomonori Ohba, Hideki Tanaka, Hirofumi Kanoh, Katsumi Kaneko

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.