Utilization of multiple graphene nanosheets in fuel cells: 2. The effect of oxidation process on the characteristics of graphene nanosheets

►There are numerous surface treatments for graphite modifications to reduce the number of graphene layers in graphitic structure. ► One of the methods is graphite oxidation to reduce strong bonding between sheets in graphite to receive monolayer graphene sheet. ► Main objectives in the present work are: to tailor the characteristic properties of graphene nanosheets via various oxidation times, ► to optimize reactant ratios during graphite oxidation, and ► to decrease the number of graphene layers in graphitic structure to be used as fuel cell electrodes.