Method for repairing graphite structure in reduced graphene oxide and application of nitrogen-doped reduced graphene oxide

The invention belongs to the field of preparation of graphene oxide, and particularly relates to a method for repairing a graphite structure in reduced graphene oxide, wherein the method comprises thefollowing steps: (1) oxidizing graphite to prepare graphene oxide; and (2) mixing the graphene oxide prepared in the step (1) with pyridine to prepare a mixed solution, adding a predetermined amountof nickel ions into a mixed solution, carrying out a hydrothermal reaction on the mixed solution, carrying out freeze drying on the product after the reaction is completed, calcining at a predetermined temperature for a predetermined time, and washing and drying the calcined solid to obtain the target product. Compared with a vapor deposition method, the implementation conditions of the technologyfor repairing the graphite structure in the reduced graphene oxide and introducing a nitrogen-containing functional group do not need specific complex equipment and harsh conditions; the preparationmethod is simple to operate,