Method of exfoliating and functionalizing graphite anode

a graphite anode and functionalization technology, applied in the direction of graphite, electrolysis organic oxidation, electrolysis components, etc., can solve the problems of difficult scaling up, difficult processing of graphene, and unfavorable material preparation by the above methodology techniqu

Inactive Publication Date: 2016-04-07
LAI CHUNG PING
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  • Description
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Problems solved by technology

However, pristine graphene are difficult to process since they are not dispersed in solvents routinely used by industry making it difficult for the widespread adoption.
The material prepared by the above methodology technique is unfavorable for scale-up as there is a large amount of acidic waste and manganese-containing waste.
As the process scales into the kilograms, several tones are required for the washing part of the existing terms making such scale-up impractical.

Method used

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  • Method of exfoliating and functionalizing graphite anode

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Embodiment Construction

[0017]The present invention will be described with reference to illustrative embodiments. For this reason, numerous modifications can be made to these embodiments and the results will still come within the scope of the invention. No limitations with respect to the specific embodiments described herein are intended or should be inferred.

[0018]With reference to FIGS. 1 to 5, a method of producing graphene oxide in an electrochemical cell according to a preferred embodiment of the present invention comprises steps of:

[0019]A. providing an electrochemical cell with a first graphitic electrode and a second conductive electrode, wherein the first graphitic electrode is made of any one of HOPG, natural graphite, and synthetic graphite, the first graphitic electrode is held at a most positive potential, and the second conductive electrode is conductive

[0020]B. providing an electrolyte of a solvent in the electrochemical cell, wherein the electrolyte has specific oxygen to produce graphene o...

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Abstract

A. providing an electrochemical cell with a first graphitic electrode and a second conductive electrode, wherein the first graphitic electrode is made of any one of HOPG, natural graphite, and synthetic graphite, the first graphitic electrode is held at a most positive potential, and the second conductive electrode is conductive, wherein a current passes through the electrochemical cell; B. providing an electrolyte of a solvent in the electrochemical cell, wherein the electrolyte has specific oxygen containing salts and base. Thereby, the graphitic electrode is functionalized and exfoliated by applying a voltage between the two electrodes thus producing graphene oxide.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a method of exfoliating and functionalizing a graphite anode.BACKGROUND OF THE INVENTION[0002]Graphene materials have been at the center of large focus in the recent years because of graphene's exceptional properties. Graphene has a unique range of properties, ranging from record electrical conductivity, thermal conductivity, mechanical stability and others. As a result, a variety of applications are envisaged in the coming years.[0003]However, pristine graphene are difficult to process since they are not dispersed in solvents routinely used by industry making it difficult for the widespread adoption. As such, graphene oxide is routinely used as a substitute for this. Graphene oxide is graphene which has been functionalized through epoxyl, carboxyl and hydroxyl groups. Graphene oxide flakes are readily dispersed in variety of organic solvents and even water due to the electrostatic interaction between the aforementioned gr...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C25B3/02C25B3/23
CPCC25B3/02C25B1/00C01B32/23C25B3/23
Inventor LAI, CHUNG-PING
Owner LAI CHUNG PING
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