南方科技大学知识苑(SUSTech KC): 一种石墨烯分散液的制备方法

Title	一种石墨烯分散液的制备方法
Alternative Title	Preparation method of graphene dispersion liquid
Author	徐政和; 杨帆; 姜峰 ; 卫晓婷
First Inventor	徐政和
Original applicant	南方科技大学
First applicant	南方科技大学
Address of First applicant	518055 广东省深圳市南山区桃源街道学苑大道1088号
Current applicant	南方科技大学
Address of Current applicant	518055 广东省深圳市南山区桃源街道学苑大道1088号 (广东,深圳,南山区)
First Current Applicant	南方科技大学
Address of First Current Applicant	518055 广东省深圳市南山区桃源街道学苑大道1088号 (广东,深圳,南山区)
Application Number	CN202210062969.6
Application Date	2022-01-19
Open (Notice) Number	CN114620718A
Date Available	2022-06-14
Status of Patent	实质审查
Legal Date	2022-07-01
Subtype	发明申请
SUSTech Authorship	First
Abstract	本发明公开了一种石墨烯分散液的制备方法。该方法包括步骤：提供羧基化石墨烯，所述羧基化石墨烯指的是石墨烯的边缘具有羧基；将所述羧基化石墨烯进行氨基改性处理，使氨基替代石墨烯边缘的部分羧基，得到氨基化石墨烯；将所述氨基化石墨烯溶于水中后，与氧化石墨烯溶液混合，并调整pH，得到石墨烯分散液。本发明提供了一种稳定性好、低成本、无污染的石墨烯分散液的制备方法，首先使石墨烯边缘带上羧基，得到羧基化石墨烯，之后氨基改性处理，使氨基替代石墨烯边缘的部分羧基，形成氨基化石墨烯。将氨基化石墨烯溶于水中，通过添加氧化石墨烯溶液与调节溶液pH值，可以控制石墨烯分散液的分散均匀度，同时可以调整石墨烯分散液的浓度。
Other Abstract	The invention discloses a preparation method of graphene dispersion liquid. The method comprises the following steps: providing carboxylated graphene, wherein the carboxylated graphene means that the edge of graphene has carboxyl; carrying out amino modification treatment on the carboxylated graphene to enable amino to replace part of carboxyl at the edge of the graphene to obtain aminated graphene; and dissolving the aminated graphene in water, mixing with a graphene oxide solution, and adjusting the pH value to obtain the graphene dispersion liquid. The invention provides a preparation method of a graphene dispersion liquid with good stability, low cost and no pollution, the preparation method comprises the following steps: carrying carboxyl on the edge of graphene to obtain carboxylated graphene, and carrying out amino modification treatment to replace part of carboxyl on the edge of the graphene with amino to form aminated graphene. The aminated graphene is dissolved in water, the dispersion uniformity of the graphene dispersion liquid can be controlled by adding the graphene oxide solution and adjusting the pH value of the solution, and meanwhile the concentration of the graphene dispersion liquid can be adjusted.
CPC Classification Number	C01B32/194 ; C01B32/184
IPC Classification Number	C01B32/194 ; C01B32/184 ; B01F23/50 ; B01F23/70
INPADOC Legal Status	（ENTRY INTO FORCE OF REQUEST FOR SUBSTANTIVE EXAMINATION）[2022-07-01][CN]
INPADOC Patent Family Count	1
Extended Patent Family Count	1
Priority date	2022-01-19
Patent Agent	刘芙蓉
Agency	深圳市君胜知识产权代理事务所(普通合伙)
URL	[Source Record]
Data Source	PatSnap
Document Type	Patent
Identifier	http://kc.sustech.edu.cn/handle/2SGJ60CL/533877
Department	College of Engineering 前沿与交叉科学研究院工学院_材料科学与工程系
Recommended Citation GB/T 7714	徐政和,杨帆,姜峰,等. 一种石墨烯分散液的制备方法.

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