Double-walled carbon nanotubes fabricated by a hydrogen arc discharge method

X-ray diffraction as a tool for the determination of the structure of double-walled carbon nanotube batches

“…6 In order to obtain DWCNTs, two major synthesis routes are known, namely, the "direct synthesis" route, using regular carbon nanotubes synthesis methods such as catalytic chemical vapor deposition ͑CCVD͒ ͑Refs. 7 and 8͒ or electric arc plasmas 9 and the "peapod conversion" route. 3,10 The first route allows the direct catalyst-assisted synthesis of DWCNTs from the decomposition of carbonaceous gas precursors ͑CCVD͒ or the sublimation of graphite anodes ͑arc discharge͒.…”

An atomic-resolution nanomechanical mass sensor

“…1a. The entire device consists of a single arc-grown double-walled nanotube 20 attached to one electrode in close proximity to a counter electrode (not shown). We chose double-walled nanotubes over smaller single-walled nanotubes because of their increased rigidity and uniform electrical properties (i.e.…”

Carbon Nanotubes in Liquid Crystals

“…Each CNT is like a graphene sheet rolled-up into tubular morphology or several such tubes arranged concentrically. The former is referred to as a singlewall carbon nanotube (SWCNT) whereas the latter generally are lumped together in the broad class of multi-wall tubes 40 (MWCNTs), although recent progress in synthesis has allowed the production of tubes with exactly two concentric carbon sheets, hence the introduction of the concept doublewall nanotubes (DWCNTs) 3 . The great interest in CNTs since their discovery in the early 1990's is on the one hand due to 45 the fascination over this new polymorph of carbon, on the other (and probably more important) to the catalogue of unique properties that it displays 2 .…”