title: 84% catalyst activity of water-assisted growth of single walled carbon nanotube forest characterization by a statistical and macroscopic approach.
abstract: We propose a statistical and macroscopic analysis to estimate the catalyst activity of water-assisted growth (super-growth) of single-walled nanotubes (SWNT) and to characterize SWNT forests. The catalyst activity was estimated to be 84% (+/-6%), the highest ever reported. The SWNT forest was found to be a very sparse material where SWNTs represent only 3.6% of the total volume. This structural sparseness is believed to play a critical role in achieving highly efficient growth.
authors.affiliation: Research Center for Advanced Carbon Materials, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8565, Japan.
authors.forename: Don N
authors.initials: DN
authors.lastname: Futaba
authors.forename: Kenji
authors.initials: K
authors.lastname: Hata
authors.forename: Tatsunori
authors.initials: T
authors.lastname: Namai
authors.forename: Takeo
authors.initials: T
authors.lastname: Yamada
authors.forename: Kohei
authors.initials: K
authors.lastname: Mizuno
authors.forename: Yuhei
authors.initials: Y
authors.lastname: Hayamizu
authors.forename: Motoo
authors.initials: M
authors.lastname: Yumura
authors.forename: Sumio
authors.initials: S
authors.lastname: Iijima