Studies towards synthesis, evolution and alignment characteristics of dense, millimeter long multiwalled carbon nanotube arrays

Beilstein Journal of Nanotechnology

Somanahalli V. Subramanyam¹  Bernd Stühn²  Martin Engel²  Jörg J. Schneider³  Pitamber Mahanandia⁴  Karuna Kar Nanda⁵ 

[1] Department of Physics, Indian Institute of Science, Bangalore-560012, India;Department of Solid State Physics, Technische Universität Darmstadt, Hochschulstr. 6, 64289 Darmstadt, Germany;Fachbereich Chemie, Eduard-Zintl-Institut, Anorganische Chemie, Petersenstr. 18, Technische Universität Darmstadt, D-64287 Darmstadt, Germany;Leibniz Institut für Polymerforschung e.V., 01069 Dresden, Hohe Strasse 6, Germany,[phone];Materials Research Centre, Indian Institute of Science Bangalore-560012, India;

关键词: carbon nanotubes;    characterization;    synthesis;   

DOI  :  10.3762/bjnano.2.34

来源: DOAJ

【 摘 要 】

We report the synthesis of aligned arrays of millimeter long carbon nanotubes (CNTs), from benzene and ferrocene as the molecular precursor and catalyst respectively, by a one-step chemical vapor deposition technique. The length of the grown CNTs depends on the reaction temperature and increases from ~85 µm to ~1.4 mm when the synthesis temperature is raised from 650 to 1100 °C, while the tube diameter is almost independent of the preparation temperature and is ~80 nm. The parallel arrangement of the CNTs, as well as their tube diameter can be verified spectroscopically by small angle X-ray scattering (SAXS) studies. Based on electron diffraction scattering (EDS) studies of the top and the base of the CNT films, a root growth process can be deduced.

【 授权许可】

Unknown