Structure formation of nanoribbon graphite from carbyne-like carbons

Fluorinated carbons were reduced and defluorinated by means of electrochemi cal reduction. A Raman spectrum of these defluorinated carbon specimens sho wed that they have sp bonds. An electron beam was irradiated to these carby ne-like specimens at 800 degreesC. This irradiation was carried out in a tr ansmission electron microscope at accelerating voltage of 300KV. Carbyne-li ke carbons were almost amorphous. After the irradiation of electron beam at 800 degreesC, small graphite crystals were observed in the form of a ribbo n several nanometer in wide. The formation of the nanoribbon graphites will be discussed.