How can I do BET measurement for graphene like materials ?

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Sujoy Sarkar

The sample should be dried completely so that no water molecule should present in between the layers.

Naresh Kumar

Before BET measurement, I dried samples at 1000C for 12 hours.

Gyorgy Banhegyi

Is it not possible that your material was heavily agglomerated?

From TEM images, I am getting 2 to 7 layers form different locations.

Claire Rutiser

Did you use an oxidation process to create your graphene? Run a TGA to check if you have fully reduced the material. If not, do thermal reduction in inert atmosphere or Ar/Hydrogen, then measure again.

I prepared GO by using Hummers method, followed reduction by Microwave irradiation subsequently sonication for graphene then i measured BET.