Fig. 3: Macroscopic and nanoscopic characterization of produced graphene.

a Photo of IPA-water 50% with 50 mmol·L-1 NH3 suspension in vial after 6 months storage. b Bright-field TEM overview image of IPA-water 50% with 50 mmol·L-1 NH3 suspension after drying, showing several graphene flakes on lacey carbon support. Note the observed high electron transparency of the flakes is indicative of low thickness.