Can graphene oxide be reduced?

The chemical reduction of graphene oxide is a promising route towards the large scale production of graphene for commercial applications. The current state-of-the-art in graphene oxide reduction, consisting of more than 50 types of reducing agent, will be reviewed from a synthetic chemistry point of view.

Is chemical reduction effective in transforming graphene oxide into RGO?

The focus is on highlighting the efficacy of the chemical reduction method in successfully transforming GO into rGO. By extending the chemical reduction duration, the reduced graphene oxide exhibited reduced oxygen content and underwent a restoration of SP 2 bonds, accompanied by the removal of oxygen functional groups.

What are graphene oxide & rGO?

Because of their simple top-down synthesis, graphene oxide (GO) and reduced graphene oxide (rGO) have opened new possibilities for gas barrier, membrane separation, and stimuli-response characteristics in nanocomposites.

How many types of reducing agents are there in graphene oxide reduction?

The current state-of-the-art in graphene oxide reduction, consisting of more than 50 types of reducing agent, will be reviewed from a synthetic chemistry point of view. Emphasis is placed on the techniques, reaction mechanisms and the quality of the produced graphene.

How is graphene oxide synthesized from graphite flakes?

Current–Voltage characterization of GO, rGO samples reduced at 2 h, 4 h, 6 h, 8 h, 10 h, and 24 h Graphene oxide has been effectively synthesized from graphite flakes through a modified Hummer’s method. Subsequently, chemical reduction employing the potent reducing agent hydrazine hydrate has been employed for varying durations of reduction.

How is graphene made using a top-down method?

The precursor for graphene manufacture using the top-down method is graphite, which is subjected to exfoliation by chemical, mechanical, and thermal methods [2, 12]. Graphene oxide (GO) is synthesized using a top-down approach by subjecting graphite flakes to oxidation using strong oxidizing agents and acids followed by exfoliation.