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An old workmate (Mohan Jacob) has been busy at the local university - James Cook University Australia. He and his team have discovered a process allowing production of almost defect free graphene sheets in seconds, without catalysts and at relatively low temperatures, and from a novel and abundant feedstock - tea tree oil. There's a decent writeup at phys.org [phys.org].
If any North Queensland nerds are lurking, he's also the founder of the JCU Robotics Club (see Facebook [facebook.com]).