Abstract:
The world is facing an energy crisis due to continuous increase in the demand of energy
with rising population and industrialization. This demand is fulfilled by the burning of
fossil fuels that leads to environmental pollution and global warming due to greenhouse
gases. The use of green sources of energy like solar, wind and water has been growing but
these are not continuous sources of energy. Thus, the energy storage device supercapacitor
has attracted much attention because of its high cycling stability, environmental safety, fast
charge/discharge rate and long life cycle. The power density of supercapacitors is very high
as compared to batteries and Fabrication of supercapacitor electrode material owing high
energy and power density with excellent cyclic stability is performed. In present work,
graphene oxide is functionalized with a subclass of MOF, ZIF-67 and further modified by
attachment of Porphyrin with non-covalent interactions. The fabricated material was
analyzed by FTIR, XRD, Raman spectroscopy and SEM. The electrochemical activity and
stability was analyzed by CV, GCD and EIS techniques, coating the electrode active
material on carbon cloth at potential window -0.3 to 0.3 in 1M H2SO4 solution. The results
exhibited that the synthesized material has high excellent energy and power density and
excellent cyclic stability.
