Ohio University

Low-Cost Production of Graphene from Coal

Overview

Exploitation of the unique properties of graphene for new commercial applications is occurring at a phenomenal rate. However, current methods of graphene production are inefficient and expensive and do not provide a commercial supply to meet expected future demand. An industrially scalable production method capable of producing large quantities of low-cost, defect-free graphene is necessary to supply graphene manufacturers of the future.

Ohio University researcher, Dr. Gerrardine Botte, has developed a simple method of producing graphene from inexpensive and widely available coal. The process begins by subjecting ground coal to electrolysis. The resulting coal char is used as a carbon source for graphene growth via chemical vapor deposition (CVD).

This approach also eliminates dependence on graphite as the carbon feedstock for graphene production. Graphite deposits are limited, with China producing 70 percent of the world’s supply. Currently there is no graphite mined in the United States, however, coal reserves are plentiful.

Coal to graphene process

OU Ref: 12018 View page [PDF]

Issued Patents :
2013246213 Australia
CN104540778B China
6193973 Japan
10,544,503 US

Published Patent Applications :
WO 2013154997

About the Inventor

Dr. Gerardine Botte (Distinguished University Professor and Russ Professor) was the Founder and Director for the Center for Electrochemical Engineering Research (CEER). Dr. Botte has been working on the analyses of electrochemical systems for the past seventeen years.