Why Do Graphite Products Electrolytically Oxidize?

Dec 20, 2022

Graphite electrolytic oxidation method, also known as anodic oxidation method, uses sulfuric acid or a mixture of sulfuric acid and a small amount of additives as the electrolyte, graphite is placed in the electrolyte, and the anodic oxidation is carried out by electrifying the two electrodes, that is, relying on anodic oxidation The effect and the potential of graphite in the electrochemical field can overcome the Fan's binding energy between graphite layers, so that intercalation ions enter the interlayer and form interlayer compounds.

The working principle of the graphite electrolytic oxidation method is that under the action of an external electric field, a large number of ions are gathered around the graphite, forming a large concentration difference inside and outside the graphite layer, and an oxidation reaction is formed between the graphite layers with the help of an external force to generate sulfuric acid. The concentration requirement of the oxidizing agent is not strict, and it can be soaked in an oxidizing agent solution with a lower concentration, which produces less harmful gas, and the electrolyte and aqueous solution can be recycled to reduce environmental pollution.

 

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