Sentences with phrase «multiwalled nanotubes»

When Barron and his team began combining carbons and amines several years ago, they noticed an interesting progression: Flat graphene absorbed carbon dioxide well, multiwalled nanotubes absorbed it better, and thinner single - walled nanotubes even better.

This top - down approach to making graphene is quite different from previous works by Tour's lab, which pioneered the small - scale manufacture of the atom - thick material from common carbon sources, even Girl Scout cookies, and learned to split multiwalled nanotubes into useful graphene nanoribbons.

Eliminating iron particles lodged inside large multiwalled nanotubes proved to be harder, but transmission electron microscope images showed their numbers, especially in single - walled tubes, to be greatly diminished.

The researchers gathered microscope images and spectroscopy data on batches of single - walled and multiwalled nanotubes before and after microwaving them in a 1,000 - watt oven, and again after bathing them in an oxidizing bath of chlorine gas under high heat and pressure.

Not exact matches

When a commercially produced «forest» of multiwalled carbon nanotubes is cut into with a razor, drawing the blade out slowly pulls out an exquisitely fine web of nanotubes held together by intramolecular van der Waals forces.