Preparation Method for Graphene Oxide Suitable for Graphene Production

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This patent describes a new, improved method for producing graphene oxide from graphite, which is specifically optimized for subsequent production of high-quality graphene. The process minimizes carbon-containing by-products and introduces fewer defects into the resulting material. The disclosed method results in pristine graphite oxide and pristine graphene oxide that can be more easily and efficiently converted to graphene with superior electrical, thermal, and mechanical properties compared to conventional methods.

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• Industrial-scale production of graphene sheets for electronics and sensors
• Manufacturing of advanced composite materials with enhanced strength and conductivity
• Development of transparent conductive films for flexible displays, touchscreen devices, and solar cells
• Production of graphene-based energy storage devices, such as batteries and supercapacitors
• Fabrication of nanostructured coatings and membranes for filtration and separation technologies
• Biomedical devices and biosensors requiring biocompatible, high-quality graphene

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces the formation of defects in graphene oxide, leading to higher-quality, low-defect graphene
• Minimizes carbon-containing by-products, making the process more efficient and environmentally friendly
• Allows chemical, scalable, and cost-effective production of graphene
• Facilitates mass production of graphene with excellent electrical, thermal, and mechanical properties
• Offers flexibility for both laboratory-scale and industrial-scale manufacturing
• Uses standard chemicals and conditions but optimizes parameters for better material quality

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Patent Abstract

A method is disposed, wherein graphite is oxidised by reaction with an oxidising agent and pristine graphite oxide is obtained. Furthermore, a method is described, wherein graphite oxide is worked up and pristine graphene oxide is obtained. Additional, a method for the production of graphene is claimed, wherein graphite is oxidised and/or graphite oxide is worked up and all by-products produced throughout the oxidation and/or work-up contain less than 1 atom of carbon per 100 atoms of carbon contained in the graphite.