Indian Institute of Technology Madras (IITM) on Thursday claimed that its researchers have shown a simple route to produce graphene platelets from graphite.
As per a statement from IITM, They found that when graphite is suspended in an appropriate fluid and subjected to an intense shearing force of machining, the layers of graphite separate into graphene platelets. The research was led by Sathyan Subbiah, Associate Professor, Department of Mechanical Engineering and his research student Wazeem Nishad.
Graphite is a lubricant because it is made of layers of carbon that slide over one another. The lubricating action itself would shear the layers off, and cause separation of the 2-D graphene sheets.
The IITM researchers suspended graphite in a lubricant liquid containing sodium cholate to prevent the graphite particles from clumping together and subjected the suspension to the machining of mild steel using oscillations of a carbide tool.