Highly crystalline 3D graphene

US10233087B2 · kind B2 · utility

Assignees

• Lawrence Livermore National Security, LLC · US
• The Regents of the University of California · US

Inventors

• Marcus A. Worsley · Hayward, US
• Leta Woo · Oakland, US
• William Mickelson · Albany, US
• Alex Zettl · Kensington, US

Key dates

• Filing date: Aug 6, 2015
• Grant date: Mar 19, 2019
• Expiry date: Jun 22, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/40
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Disclosed here is a composition comprising at least one graphene aerogel comprising a three-dimensional structure of graphene sheets, wherein the graphene sheets are covalently interconnected, and wherein the graphene aerogel is highly crystalline. Also described is a method for making a graphene aerogel, comprising preparing a mixture comprising a graphene oxide suspension and at least one catalyst; curing the reaction mixture to produce a wet gel; drying the wet gel to produce a dry gel; and pyrolyzing the dry gel at a temperature of 1500-3500° C. to produce the graphene aerogel.