Chemical Sciences

This is an improved process for preparation of graphene oxide from high pure natural graphite (more than 99.9 % Carbon) by dry process using dual drive planetary ball milling. It is a novel process for preparation of graphene oxide from high pure natural graphite using shearing action of balls in dual drive vertical swing planetary ball mill. It is worth mentioning that no acids and chemicals are used to produce graphene oxide in this present process. It is a single step operation for mass production of graphene oxide from natural high pure graphite powder. Graphene oxide produced by ball milling has very small particle size, a relatively high surface area and unique aspect ratios. It is the feed material for making nano-composites or coating on metals or metal oxides to form composites with the high surface area. The nano-composites are useful for producing electrodes, especially for battery and super capacitor applications.