GRAPHITE COMPOSITE CONDUCTIVE BAR MATERIAL AND METHOD FOR PRODUCING GRAPHENE USING THE SAME
First Claim
1. A graphite composite conductive bar material, functioning as a cathode in a plasma electrochemical process for producing graphene, wherein a plurality of graphite powders and a polymeric material are mixed and molded to form said graphite composite conductive bar material, and wherein said graphite composite conductive bar material contains more than 50 wt % of said graphite powders.
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Abstract
A graphite composite conductive bar material and a method for producing graphene using the same are provided. The graphite composite conductive bar material is fabricated via mixing graphite powder more than 50% by weight with a polymeric material. The graphite composite conductive bar is used in a plasma electrochemical exfoliation process as a cathode and contacts with the surface of the electrolytic solution, whereby the bar material is exfoliated to obtain a less defective graphene. Therefore, the present invention can improve product yield and reduce production cost. In addition, a solid-state nitrogen-containing precursor may be added to the graphite composite conductive bar material for producing nitrogen-doped graphene. In the nitrogen-doped graphene produced by the present invention, the amount of doped nitrogen is increased and tunable compared to the former invention, and the level of oxidization is decreased.
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Citations
18 Claims
- 1. A graphite composite conductive bar material, functioning as a cathode in a plasma electrochemical process for producing graphene, wherein a plurality of graphite powders and a polymeric material are mixed and molded to form said graphite composite conductive bar material, and wherein said graphite composite conductive bar material contains more than 50 wt % of said graphite powders.
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7. A method for producing graphene, comprising steps:
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providing a graphite composite conductive bar material, wherein a plurality of graphite powders and a polymeric material are mixed and molded to form said graphite composite conductive bar material, and wherein said graphite composite conductive bar material contains more than 50 wt % of said graphite powders; providing a plasma electrochemical apparatus including an electrolytic solution, an anode and a cathode, wherein said graphite composite conductive bar material is used as said cathode with one end thereof contacting said electrolytic solution; and applying an electric potential difference between said anode and said graphite composite conductive bar material to make a surface of said graphite composite conductive bar material, which contacts said electrolytic solution, undertake a plasma electrochemical reaction to form graphene. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification