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Polyaniline-based nanocomposites for hydrogen storage             223





















































           Fig. 8.3 Scanning electron microscopy images of PANI-NF (A) before and (B) after H-sorption
           cycles.


           8.2.2  Nanoporous PANI
           Highly porous polymeric materials show advantages such as lightweight [6], chemical
           [13] and thermal stabilities, and structural flexibility [31–33]. Hence, it shows better
           performance in adsorbing hydrogen via physisorptive mechanism. Nanoporous mor-
           phology of the PANI strongly influences the hydrogen storage through physisorption.
           This leads to fast reaction kinetics and overcomes the problem of inherent
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