Researchers develop new method for sustainable production of graphene from solar-driven expanded graphite
Researchers from Khalifa University of Science and Technology have demonstrated the production of few-layered graphene sheets with high lateral sizes (4–5 μm) through a state-of-the-art solar irradiation-driven liquid-phase exfoliation technique.
In this method, the sunlight is directly used on the intercalated graphite flakes for just 0.5 s to achieve the graphite expansion. Using focused sunlight makes this solar expansion technique sustainable with zero energy demand (0 J) – the total energy spent to produce 1 kg of graphene through this technique is only around 2.135 MJ.
Source: http://www.graphene-info.com/researchers-develop-new-method-sustainable-production-graphene-solar-driven
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