Abstract:
본원은, 폐그래파이트를 이용한 그래핀 산화물의 제조 방법에 관한 것으로서, 구체적으로, 그래파이트 및 금속을 포함하는 분말을 소결하고; 상기 소결된 분말을 산처리 및 전기 분해한 후 폐그래파이트를 분리하고; 상기 분리된 폐그래파이트에 산 및 산화제를 첨가하여 산화물을 제조하고; 및, 상기 산화물을 열처리하여 그래핀 산화물을 수득하는 것을 포함하는, 폐그래파이트를 이용한 그래핀 산화물의 제조 방법에 관한 것이다.
Abstract:
Disclosed are an electrode structure having a roll shape, an electrode and an electric device applying the same, and a method for manufacturing the electrode structure. The disclosed electrode structure has a structure of a graphene film having a nano material dispersed on at least one side wound in a roll shape. The electrode structure can have a high electrode density while securing a space making the diffusion of an electrolyte ion between the contact surfaces of the graphene film easy, and can be stably maintained in a shape of being vertically oriented on a current collector when applied to an electrode of an energy storage device such as a supercapacitor.
Abstract:
The present application relates to a coagulated graphene oxide and a producing method thereof, a coagulated graphene and a producing method thereof, and a coagulated nitrogen-doped graphene and a manufacturing method thereof. The manufacturing method of coagulated graphene oxide includes: a step of dispersing the graphene oxide in an organic solvent; and a step of forming the graphene oxide coagulated in an antisolvent by adding the antisolvent to the dispersed graphene oxide.
Abstract:
The present invention relates to a light emitting device using a graphene quantum dot which comprises the graphene quantum dot and an organic light emitting material chemically or physically coupled with the graphene quantum dot. The present invention can provide a light emitting device having an excellent light emitting efficiency capable of emitting blue, green, red, or yellow lights by chemically or physically coupling the organic light emitting material to the graphene quantum dot.
Abstract:
The present invention relates to a biosensor comprising a reduced graphene oxide layer. The biosensor of a horizontal structure includes a reduced graphene oxide layer formed on a substrate, a molecule linker formed on the reduced graphene oxide layer, and a metal nanoparticle layer formed on the molecule linker. The reduced graphene oxide layer has a film structure of one or more layers. The molecule linker contains a diazonium group on a first terminal and contains a thiol group, a hydroxyl group, or an amine group on a second terminal. [Reference numerals] (AA) Step of forming a reduced graphene oxide layer on a substrate;(BB) Step of forming a molecule linker on the reduced graphene oxide layer;(CC) Step of forming a metal nanoparticle layer on the molecule linker;(DD) Horizontal structure bio sensor