The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2024
Filed:
Feb. 27, 2023
Southwest Petroleum University, Chengdu, CN;
Yang Bai, Chengdu, CN;
Daoxiong Li, Chengdu, CN;
Ren Wang, Beijing, CN;
Gang Xie, Chengdu, CN;
Danchao Huang, Chengdu, CN;
Wenzhe Li, Sichuan, CN;
Feng Dai, Sichuan, CN;
Jintang Wang, Chengdu, CN;
Jing Zhang, Chengdu, CN;
Jinsheng Sun, Chengdu, CN;
Southwest Petroleum University, Chengdu, CN;
Abstract
A nanographene, a preparation method thereof, and uses thereof are disclosed. The method of preparing the nanographene includes the steps: (1) carrying out a first reaction by contacting a raw material graphite and a first oxidizing agent with an intercalating agent to obtain a modified graphite; (2) performing a second reaction by contacting the modified graphite and an acid with a second oxidizing agent to obtain a graphene pre-product; and (3) subjecting the graphene pre-product to an air-flow exfoliation to prepare a nanographene. An oil-based drilling fluid containing the nanographene produced by the method is also disclosed.