The product of very rapid heating (or flash heating) of graphite intercalation compounds, such as graphite hydrogensulfate of relatively large particle diameter (flakes). The vaporizing intercalated substances force the graphite layers apart. The exfoliated graphite assumes an accordion-like shape with an apparent volume often hundreds of times that of the original graphite flakes.
Note:
Exfoliated @G02684@ is usually prepared from well-crystallized natural flake @G02684@. It is used for the production of @G02684@ foils. Exfoliated @G02684@ is different from the deflagration product of @G02684@ oxide (graphitic acid).
Source:
PAC, 1995, 67, 473. 'Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)' on page 488 (https://doi.org/10.1351/pac199567030473)