Saltwater Over Graphene Generates Electricity

Stefan Mileschin · 16th April 2014, 07:33

It slices, it dices, it's an amazing thermal conductor, it is bendable and now it generates electricity using saltwater. Is there anything graphene can't do? Here, we show that a voltage of a few millivolts can be produced by moving a droplet of sea water or ionic solution over a strip of monolayer graphene under ambient conditions. Through experiments and density functional theory calculations, we find that a pseudocapacitor is formed at the droplet/graphene interface, which is driven forward by the moving droplet, charging and discharging at the front and rear of the droplet. Here's a neat video of graphene slicing and dicing ice.

http://www.hardocp.com/news/2014/04/...s_electricity/

16th April 2014, 07:33	#1
Stefan Mileschin [M] Reviewer Join Date: May 2010 Location: Romania Posts: 148,408	Saltwater Over Graphene Generates Electricity It slices, it dices, it's an amazing thermal conductor, it is bendable and now it generates electricity using saltwater. Is there anything graphene can't do? Here, we show that a voltage of a few millivolts can be produced by moving a droplet of sea water or ionic solution over a strip of monolayer graphene under ambient conditions. Through experiments and density functional theory calculations, we find that a pseudocapacitor is formed at the droplet/graphene interface, which is driven forward by the moving droplet, charging and discharging at the front and rear of the droplet. Here's a neat video of graphene slicing and dicing ice. http://www.hardocp.com/news/2014/04/...s_electricity/

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