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Re:German Scientists Create Aerographite, the Lightest Mater... by rejuvenile on Wednesday July 18, 2012 @01:19PM (#4261753)
Aerogels can have a surface area of ~2,500 m2 g-1, which is incredibly high.

I wonder if this material, being made of carbon and likely having a similarly high surface area, would make a good capacitor.

Re:German Scientists Create Aerographite, the Lightest Mater... by Someone on Wednesday July 18, 2012 @02:57PM (#4262286)
https://en.wikipedia.org/wiki/Aerographite#Potential_applica... claims 1.25Wh/kg. I hope that isn't for the lightest variant; in Wh/m^3, that wouldn't be that good.