▎ 摘　　要

NOVELTY - A composition comprises 5% iron(III) nitrate nonahydrate, 5% cobalt(II) nitrate hexahydrate, 40% sugarcane bagasse, and 50% isopropyl alcohol. USE - Composition used for producing graphene flakes (all claimed) for preparing large-scale graphene polyhedral structure and nanosheets. ADVANTAGE - The composition provides graphene flakes with high quality, and reduced environmental degradation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for production of graphene flakes, which involves mixing a metallic catalyst, ion (III) nitrate nonahydrate, cobalt(II) nitrate hexahydrate, and sugarcane bagasse in a chemical vapor deposition set up, processing the mixture with chemical vapor deposition process for the formation of dark grey amorphous granules, performing redox process for purification of dark grey amorphous granules, adding hydrochloric acid and demineralized water with dark grey amorphous granules, and filtering dark grey amorphous granules demineralized water and isopropyl alcohol.