DOUBLE-WALLED CARBON NANOTUBES AND METHODS FOR PRODUCTION AND APPLICATION

摘要

There is disclosed a solid substance comprised by more than one half by weight of hollow carbon nanotubes having walls consisting essentially of two layers of carbon atoms. Also disclosed are substantially pure double-walled nanotubes. Still further a composition is disclosed which comprises double-walled nanotubes and single- walled nanotubes wherein the ratio of the number of double-walled nanotubes to single- walled nanotubes is about 1.