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:
Jun. 12, 2018
Filed:
Nov. 23, 2016
Applicant:
University of Massachusetts, Boston, MA (US);
Inventors:
Horst Henning Winter, Amherst, MA (US);
Christos Dimitrakopoulos, Suffield, CT (US);
Assignee:
University of Massachusetts, Boston, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
C01B 31/02 (2006.01); B01D 21/26 (2006.01); C01B 32/19 (2017.01); B82Y 40/00 (2011.01); B82Y 30/00 (2011.01);
U.S. Cl.
CPC ...
B01D 21/262 (2013.01); C01B 32/19 (2017.08); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01B 2204/04 (2013.01); Y10S 977/734 (2013.01); Y10S 977/842 (2013.01);
Abstract
A method of exfoliating graphite into graphene uses a sequence of flow and sonication on graphite suspensions. Graphite particles after intense mixing/grinding in a liquid are found to be altered, graphite having curled-up edges, which increases its sensitivity to ultrasound. Quadrupled graphene yield is achieved through introducing chaotic flow pretreatment.