Adriano Ambrosi et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 16(2), 331-334 (2014-11-19)
Graphene-related materials contain chemically bonded oxygen atoms in the form of epoxy, hydroxy, carboxy, and carbonyl groups. It is important to determine the quantity of oxygen atoms and to understand their position on the graphene sheet. However, visualization of these