Purification and characterization of zeolite-supported single-walled carbon nanotubes catalytically synthesized from ethanol

Hideyuki Igarashi, Hiroto Murakami, Yoichi Murakami, Shigeo Maruyama, Naotoshi Nakashima

    研究成果: Contribution to journalArticle査読

    33 被引用数 (Scopus)

    抄録

    Nearly complete removal of zeolite particles and Fe/Co catalysts from raw single-walled carbon nanotubes (SWNTs) produced by chemical vapor deposition was achieved by oxidation of raw material at 240°C or 340°C and treatment with 1% aqueous solution of hydrofluoric acid. The yields of SWNTs were estimated to be ≈95% and the purities of SWNTs thus obtained were more than 95%, as characterized by thermo-gravimetric analysis. Raman spectra of the purified SWNTs were essentially identical with those of the corresponding raw samples. The raw and purified SWNTs were also characterized by EDX spectroscopy and transmission electron microscopy.

    本文言語英語
    ページ(範囲)529-532
    ページ数4
    ジャーナルChemical Physics Letters
    392
    4-6
    DOI
    出版ステータス出版済み - 7 11 2004

    All Science Journal Classification (ASJC) codes

    • 物理学および天文学(全般)
    • 物理化学および理論化学

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