title: Atomic-scale analysis on the role of molybdenum in iron-catalyzed carbon nanotube growth.
abstract: We have elucidated the synergetic role played by molybdenum in iron-catalyzed chemical vapor deposition growth of carbon nanotubes (CNTs) by in situ environmental transmission electron microscopy. Molybdenum can be well accommodated by Fe-based carbide nanoparticle catalysts of M(23)C(6)-type structure (M = Fe and Mo). We have also shown that molybdenum suppresses the nucleation of iron compounds that are known to exhibit no catalytic activity for the growth of CNTs.
authors.affiliation: Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka, 560-0043, Japan.
authors.forename: Hideto
authors.initials: H
authors.lastname: Yoshida
authors.forename: Takuma
authors.initials: T
authors.lastname: Shimizu
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Uchiyama
authors.forename: Hideo
authors.initials: H
authors.lastname: Kohno
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Homma
authors.forename: Seiji
authors.initials: S
authors.lastname: Takeda