  Interaction between carbon nanomaterials and micellar substrates is studied.
A notable observation is the dependence of nano-surface topology on
thermodynamic signatures of the carbon nanomaterials e.g., single wall carbon
nanotube (SWNT), multiwall carbon nanotube (MWNT) and graphene. The disruption
of the self assembly process while the micelles were converted to monomer has a
unique character in presence of graphene. This unique behavior follows
irrespective of whether the micelle forming monomer is anionic (Sodium dodecyl
sulfate) or cationic(Cetrimonium bromide). The direct measurement of
temperature(T) also indicates that T falls monotonically as the micelles are
formed in presence of graphene, this being different in all other cases (SWNT
and MWNT). The photon correlation studies indicated formation of smaller and
well distributed micelles in contact with graphene,this being not the case with
SWNT and MWNT. Importantly the free energy change corresponding to the micelle
formation has same order of magnitude (-26 to -25 KJ/Mole), the enthalpy
showing a nanosurface specific value that varies between -9 to +7 KJ /mole
depending on the nature of the nanomaterial and that of the self assembling
micellar monomer. The constancy of the free energy and surface dependent
vaiations of enthalpy implies that an entropy enthalpy compensation (free
energy being a linear combination of the two) is inevitable in the self
assembly process. The micellar cooling induced by graphene further implies a
possible potential of the nano-embedded self assembly in fields like energy
harnessing and bioenergetic manipulations. .
