Abstract:
Greenhouse gas emissions and the depletion of finite resources are two major
environmental issues brought on by the current reliance on fossil fuels to meet energy
demands. Making the switch to renewable energy sources like solar and wind is
crucial, but their inconsistent availability calls for efficient storage options. Among
these, electrochemical energy storage devices supercapacitors in particular stand out as
viable choices because of their long-lasting performance and high power efficiency.
As a result, the supercapacitor, an energy storage device, has garnered a lot of attention
because of its long lifespan, high cycling stability, environmental safety, and quick
charge/discharge rate. In comparison to batteries, supercapacitors have a very high
power density. Supercapacitor electrode material is made with higher energy and
power density and excellent cyclic stability. In present work, ZIF-8, ZIF-67, MXene,
Core shell ZIF-8/ZIF-67 and final composite MXene@ZIF-8/ZIF-67 were synthesized.
The final composite was synthesized by self-assembly method with non-covalent
interactions. The fabricated material was analyzed by FTIR. Different electrochemical
characterizations such as CV, GCD and EIS were performed. The active electrode
material was coated on carbon cloth by drop casting method. The potential window is
from -0.2 to 1.0 V in 3M sulphuric acid. Composite has specific capacitance 83.3 F/g
at 0.5 A/g current density with power and energy density at 0.25 Wkg-1 and 43.3
Whkg-1. This is a good material for enhancing the supercapacitor performance.
