METHODS FOR PRODUCING GRAPHENE WITH TUNABLE PROPERTIES BY A MULTI-STEP THERMAL REDUCTION PROCESS

摘要

The present invention relates to a method for producing a graphite oxide which comprises: a) flash heat treatment of graphite oxide under an inert atmosphere at a temperature of 700 DEG C or less, b) cooling the material obtained in the previous step below 90 ° C; And c) heating the resultant material from the previous step at a temperature and an inert atmosphere above the temperature in step a), wherein the heating rate is from 1 to 15 캜 / min. The present invention also relates to graphenes so obtained, which exhibit excellent physical-chemical properties.