Thank you, L for sharing,
I can understand why FGR are working with the UK's NPL to get a better understanding of PureGraph's true surface area,
The NICNAS Public report details PureGraph only has a tiny surface area, between 7-9 m2 when tested by BET, its pore size and defects are also minimal. detailing the products pristine nature,
The following image is from one of your links above.
Mono layer graphene is expected to have a SSA of 2630m2 per gram,
FGR's NICNAS standard report details Puregraph is 4-15 layers - (depending on Graphene type)
Its surface area's should be around.
PureGraph 20 = 2630 / 15 layers= 175m2
PureGraph 5 = 2630/4 layers = 657 m2
The standard report also details the density per m3 for each PureGraph type (graphene),
PureGraph 5 is 62kg per m3, and PG 20 is 256kg per m3,
where Sri Lankan Graphite has a density of over 2.2t per m3.
I hope I explain this well enough, FGR's graphene density and aspect ratio's are inline with Multi layer and Few layer graphene, although when tested by BET method, it only details a surface area of 7-9 m2,
I am keen to see the explanation as to why,
My thoughts are the nature of Sri Lankan Graphite, when it was formed with extreme heat and high pressure removed the majority of the impurities.
This may explain why we have such a low SSA due to there being no/low defects or pores in the graphene for the nitrogen to be absorbed,
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Thank you, L for sharing, I can understand why FGR are working...
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