title: Stacking nature of the catalytic chemical vapor deposition-derived double-walled carbon nanotubes.
abstract: Here we described the synthesis of highly pure double walled carbon nanotube (DWNT) through a right combination of a catalytic chemical vapor deposition method and the two-step purification and evaluated their stacking infidelity when compared to multi-walled carbon nanotubes (MWNTs). Easy fabrication of thin and flexible, but mechanically tough DWNT-buckypaper was due to the long and large-sized bundled DWNT (up to 50 nm), where DWNTs with diameter below 2 nm were packed in hexagonal array. Through detailed transmission electron microscope, X-ray and Raman studies, we confirmed that the intershell spacing of our DWNT sample was ca. 0.36 nm, which was believed to strongly affect negative and small magnetoresistance absolute value of -0.09 at 77 K and 1 T.
authors.affiliation: Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano-shi 380-8553, Japan.
authors.forename: Yoong-Ahm
authors.initials: YA
authors.lastname: Kim
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Muramatsu
authors.forename: Masahito
authors.initials: M
authors.lastname: Kojima
authors.forename: Takuya
authors.initials: T
authors.lastname: Hayashi
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Kaburagi
authors.forename: Morinobu
authors.initials: M
authors.lastname: Endo
mesh_terms: D002384:Catalysis; D003460:Crystallization; D008280:Magnetics; D008422:Materials Testing; D046529:Microscopy, Electron, Transmission; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010455:Peptides / Q000737:chemistry; D013059:Spectrum Analysis, Raman; D013696:Temperature; D014961:X-Ray Diffraction
chemical_list: D037742:Nanotubes, Carbon; D010455:Peptides