Method for preparing graphene chemically modified electrode through in-situ growth

Abstract

The invention discloses a method for preparing a graphene chemically modified electrode through in-situ growth, which mainly comprises the following steps: (A) substrate cleaning; (B) in-situ growth of graphene: placing the substrate obtained by the step (A) in a clean quartz boat, and placing the quartz boat in a quartz tube of a horizontal resistance furnace; introducing argon to remove oxygen in the quartz tube; under the protection of the argon, heating the quartz tube to the growth temperature of graphene; preserving heat for 1-180 minutes while introducing carbon source gas and hydrogen instead; then, cooling to room temperature under the protection of argon, and taking out a product to obtain a substrate with in-situ grown graphene; (C) connecting the substrate with graphene of in-situ growth, obtained by the step (B), with a wire or directly putting the substrate into a clamp to obtain the graphene chemically modified electrode. The preparation process of the method is simple, the preparation efficiency is high, and the method is suitable for large-scale production; the prepared graphene chemically modified electrode has good quality and excellent detection performance.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for better control over how well chemical modifications occur at specific locations within an electrified material (electrodes) without damaging them or affecting their properties. It simplifies the manufacturing processes by allowing direct formation of new layers onto the surface instead of relying solely upon previous methods like adding carbon nanotubes into solution. Additionally, this technique makes it possible to create highly sensitive detectors that work even when they have been previously exposed to harmful substances such as organic solvents used in liquid chromatography analysis.

Problems solved by technology

The technical problem addressed in this patented text relates to how to efficiently separate small pieces (graphene) from large sheets of material like graphites without damaging their original properties such as electrical conduction and electronic motion ability. Current methods involve expensive processes involving physical manipulation techniques which can damage them during production.

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