A method for the continuous electrochemical reduction of graphene oxide in a liquid flow to produce reduced graphene

CN116288412BActive Publication Date: 2026-06-12GUANGXI NORMAL UNIV

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: GUANGXI NORMAL UNIV
Filing Date: 2022-11-28
Publication Date: 2026-06-12

AI Technical Summary

⚠Technical Problem

Existing graphene preparation technologies suffer from high costs, environmental pollution, high energy consumption, low yields, and inability to scale up production. In particular, the electrochemical reduction method suffers from low yields, complex operation, high costs, and severe environmental pollution in industrial applications.

⚗Method used

A continuous electrochemical reduction method for graphene oxide is adopted. By preparing a graphene oxide electrolyte slurry, electrochemical reduction is carried out using electrolytes and additives. Combined with the design of fluid pumps and electrolytic cells, continuous reduction of graphene oxide is achieved during the flow process, avoiding high temperature and high pressure conditions, using environmentally friendly additives, and improving reduction efficiency and production capacity.

🎯Benefits of technology

It enables low-cost, environmentally friendly, and stable industrial-scale production of high-quality graphene, improves raw material utilization, reduces environmental pollution, lowers production costs, and is suitable for continuous industrial production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of graphene material preparation, and provides a method for preparing reduced graphene by continuously electrochemically reducing graphene oxide in liquid flow, which comprises the following steps: (1) preparing graphene oxide electrolyte slurry: the graphene oxide electrolyte slurry is composed of homogenized graphene oxide and electrolyte; the electrolyte is composed of electrolyte, solvent and additive, and the additive is surfactant and / or reducing agent; (2) injecting the graphene oxide electrolyte slurry into an electrolytic cell, and making the graphene oxide electrolyte slurry flow in the electrolytic cell by a fluid pump; (3) in the electrochemical reduction process, the electrolyte slurry flows between the cathode and anode electrodes in the electrolytic cell at a certain flow rate, and the graphene oxide in the graphene oxide electrolyte slurry is electrochemically reduced in the flowing process, and reduced graphene is obtained. The application is a method for continuously electrochemically reducing graphene oxide in liquid flow, and can continuously, stably, low-cost and greenly prepare reduced graphene.

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