In the electrochemical synthesis of graphene oxide in the aqueous-organic electrolyte, a decomposition product of the conductive salt (sodium perchlorate / lithium perchlorate) and of the solvents (propylene carbonate / dimethyl carbonate / water) is formed at the negative pole (copper).
On contact with water, this decomposition product reacts very slowly, which is why it can not be an elemental alkali metal.
The formation of this decomposition product causes the electrode to be passivated, thereby reducing the electric currents and increasing the synthesis time. Is there an additive that can prevent the formation of such a decomposition product? Can the variation of the cathode material influence the formation of such a decomposition product?
For detailed synthesis information, see the publication "Rapid Synthesis of Yellow Graphite Oxide-One-Step Electrochemical Oxidation of Graphite in Organic Solvents".
I am very grateful for any suggestions.
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