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首页> 外文期刊>Journal of the American Chemical Society >Predominant (6,5) Single-Walled Carbon Nanotube Growth on a Copper-Promoted Iron Catalyst
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Predominant (6,5) Single-Walled Carbon Nanotube Growth on a Copper-Promoted Iron Catalyst

机译：在铜促进的铁催化剂上主要（6,5）单壁碳纳米管的生长

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摘要

We have developed a magnesia (MgO)-supported iron-copper (FeCu) catalyst to accomplish the growth of single-walled carbon nanotubes (SWNTs) using carbon monoxide (CO) as the carbon source at ambient pressure. The FeCu catalyst system facilitates the growth of small-diameter SWNTs with a narrow diameter distribution. UV-vis-NIR optical absorption spectra and photoluminescence excitation (PLE) mapping were used to evaluate the relative quantities of the different (n,m) species. We have also demonstrated that the addition of Cu to the Fe catalyst can also cause a remarkable increase in the yield of SWNTs. Finally, a growth mechanism for the FeCu-catalyzed synthesis of SWNTs has been proposed.
机译：我们已经开发了一种氧化镁（MgO）负载的铁铜（FeCu）催化剂，以在环境压力下使用一氧化碳（CO）作为碳源来实现单壁碳纳米管（SWNT）的生长。 FeCu催化剂体系促进了直径分布窄的小直径单壁碳纳米管的生长。 UV-vis-NIR光学吸收光谱和光致发光激发（PLE）映射用于评估不同（n，m）物种的相对量。我们还证明了向Fe催化剂中添加Cu也可以显着提高SWNTs的产率。最后，提出了FeCu催化合成SWNTs的生长机理。

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  • 来源
    《Journal of the American Chemical Society》 |2010年第40期|p.13994-13996|共3页
  • 作者

    Maoshuai He; Alexander I. Chernov; Pavel V. Fedotov; Elena D. Obraztsova; Jani Sainio; Emma Rikkinen; Hua Jiang; Zhen Zhu; Ying Tian; Esko I. Kauppinen; Marita Niemela; A. Outi I. Krause;

  • 作者单位

    Department of Biotechnology and Chemical Technology, School of Science and Technology, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland;

    rnA. M. Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilov Street, 119991 Moscow, Russia;

    rnA. M. Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilov Street, 119991 Moscow, Russia;

    rnA. M. Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilov Street, 119991 Moscow, Russia;

    rnDepartment of Applied Physics, School of Science and Technology, Aalto University, P.O. Box 11100, FI-00076 Aalto, Finland;

    rnDepartment of Biotechnology and Chemical Technology, School of Science and Technology, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland;

    rnNanoMaterials Group, Department of Applied Physics, and Center for New Materials, School of Science and Technology, Aalto University, P.O. Box 15100, FI-00076 Aalto, Finland;

    rnNanoMaterials Group, Department of Applied Physics, and Center for New Materials, School of Science and Technology, Aalto University, P.O. Box 15100, FI-00076 Aalto, Finland;

    rnNanoMaterials Group, Department of Applied Physics, and Center for New Materials, School of Science and Technology, Aalto University, P.O. Box 15100, FI-00076 Aalto, Finland;

    rnNanoMaterials Group, Department of Applied Physics, and Center for New Materials, School of Science and Technology, Aalto University, P.O. Box 15100, FI-00076 Aalto, Finland VTT Biotechnology, P.O. Box WOO, FI-02044, Espoo, Finland;

    rnDepartment of Biotechnology and Chemical Technology, School of Science and Technology, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland;

    rnDepartment of Biotechnology and Chemical Technology, School of Science and Technology, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 入库时间 2022-08-18 03:15:51

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