http://www.sciencealert.com/australian-scientists-have-found-a-cheap-way-to-make-graphene-using-tea-tree-extract Researchers from James Cook University in Australia have found a new way to make the wonder material from the tea tree plant "The researchers found that they could manufacture a significant amount of almost defect-free graphene in a matter of seconds to minutes, while current methods usually take several hours," Importantly, the technique also works without the need for any catalysts, or non-renewable or toxic precursors. And it works at relatively low temperatures. via Scientists have found a cheap way to make graphene from tea tree extract - ScienceAlert.