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Mention the incorrect option with respect to the method of graphene synthesis by hydrothermal reduction of graphene oxide.

Mention the incorrect option with respect to the method of graphene synthesis by hydrothermal reduction of graphene oxide. Correct Answer Very expensive method of preparation

Graphene can be produced by the process of hydrothermal reduction of graphene oxide. This process is industrially applicable, environment friendly and quite economical. The process results in graphene colloidal suspension having graphene nanofluids that exhibit Newtonian behavior. Their viscosity is similar enough to water.

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Hydrothermal self-assembly method of graphene synthesis has many benefits but it is incapable of controlling the thickness of graphene sheets produced.
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