Producing graphene from coke using electrochemical exfoliation

US12297113B2 · kind B2 · utility

Assignees

• ExxonMobil Chemical Patents Inc. · US
• THE TEXAS A&M UNIVERSITY SYSTEM · US

Inventors

• Rohan A. Hule · Houston, US
• Micah J. Green · College Station, US
• Sanjit Saha · College Station, US
• Pritishma Lakhe · College Station, US
• Sundararajan Uppili · Bartlesville, US
• Sergey Yakovlev · Moscow, RU

Key dates

• Filing date: Jan 21, 2022
• Grant date: May 13, 2025
• Expiry date: Jan 15, 2043

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2004/04
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method of electrochemical exfoliation, may include: electrochemically exfoliating a parent material comprising coke, wherein the electrochemically exfoliating comprises introducing the parent material into a porous chamber, applying pressure to the porous chamber to thereby compress the parent material in the porous chamber, and applying a potential bias to the parent material while at least a portion of the parent material is in contact with an electrolyte solution to produce a mixture of exfoliated material and unexfoliated parent material, wherein the exfoliated material comprises exfoliated graphene; and separating at least a portion of the exfoliated material from the unexfoliated parent material.