Hi,Deepak.I tried DI water or EG based graphene nanofluid with addition of other dispersent with different mass fractions but the stability is very poor. Could you tell me why you choose oil as base fluid to prepare graphene nanofluid?
I would try such common ones like CTAB and Cetylpyridinium chloride, alternatively quats used in traditional softeners, Dialkyl dimenthyl ammonium chlorides.