Method for the manufacture of reduced graphene oxide from graphite electrode scrap comprising: A. The provision of scrap of graphite electrode used in electric arc furnace, B. The grinding of electrode graphite scrap to obtain grinded graphite electrode, C. An oxidation step of the grinded graphite electrode to obtain graphene oxide comprising the following successive sub-steps: i. The preparation of a mixture comprising the grinded graphite electrode, an acid and a nitrate salt, the mixture being kept at a temperature below 5°C, the acid being chosen from: H 2 SO 4, HCl, HNOs, H 3 PO 4, C 2 H 2 Cl 2 O 2 (dichloroacetic acid), HSO 2 OH (alkylsulfonic acid) or a mixture thereof, ii. The addition of an oxidizing agent, chosen from: potassium permanganate, H 2 O 2, Os, H 2 S 2 O 8, H 2 SO 5, KNOs, NaClO or a mixture thereof, into the mixture obtained in step C.i) to obtain graphite oxide, iii. After the targeted level of oxidation of at least 45% by weight of oxygen functional groups is reached, the addition of a chemical element to stop the oxidation reaction, the chemical element being chosen from: an acid, non-deionized water, deionized water, H 2 O 2 or a mixture thereof, iv. the separation of graphite oxide from the mixture obtained in step C.iii), v. the exfoliation of graphite oxide into graphene oxide and D. A reduction of graphene oxide into reduced graphene oxide. A. The provision of scrap of graphite electrode used in electric arc furnace, B. The grinding of electrode graphite scrap to obtain grinded graphite electrode, C. An oxidation step of the grinded graphite electrode to obtain graphene oxide comprising the following successive sub-steps: i. The preparation of a mixture comprising the grinded graphite electrode, an acid and a nitrate salt, the mixture being kept at a temperature below 5°C, the acid being chosen from: H 2 SO 4, HCl, HNOs, H 3 PO 4, C 2 H 2 Cl 2 O 2 (dichloroacetic acid), HSO 2 OH (alkylsulfonic acid) or a mixture thereof, ii. The addition of an oxidizing agent, chosen from: potassium permanganate, H 2 O 2, Os, H 2 S 2 O 8, H 2 SO 5, KNOs, NaClO or a mixture thereof, into the mixture obtained in step C.i) to obtain graphite oxide, iii. After the targeted level of oxidation of at least 45% by weight of oxygen functional groups is reached, the addition of a chemical element to stop the oxidation reaction, the chemical element being chosen from: an acid, non-deionized water, deionized water, H 2 O 2 or a mixture thereof, iv. the separation of graphite oxide from the mixture obtained in step C.iii), v. the exfoliation of graphite oxide into graphene oxide and i. The preparation of a mixture comprising the grinded graphite electrode, an acid and a nitrate salt, the mixture being kept at a temperature below 5°C, the acid being chosen from: H 2 SO 4, HCl, HNOs, H 3 PO 4, C 2 H 2 Cl 2 O 2 (dichloroacetic acid), HSO 2 OH (alkylsulfonic acid) or a mixture thereof, ii. The addition of an oxidizing agent, chosen from: potassium permanganate, H 2 O 2, Os, H 2 S 2 O 8, H 2 SO 5, KNOs, NaClO or a mixture thereof, into the mixture obtained in step C.i) to obtain graphite oxide, iii. After the targeted level of oxidation of at least 45% by weight of oxygen functional groups is reached, the addition of a chemical element to stop the oxidation reaction, the chemical element being chosen from: an acid, non-deionized water, deionized water, H 2 O 2 or a mixture thereof, iv. the separation of graphite oxide from the mixture obtained in step C.iii), v. the exfoliation of graphite oxide into graphene oxide and D. A reduction of graphene oxide into reduced graphene oxide.