Abstract:
With the progress in industrialization, the scarcity of resources and environmental
pollution is growing fast. On the one hand, carbon dioxide produced by the ordinary
combustion vehicle is a major source of global warming, where the fuel cars are
accounted to consume a huge amount of oil resources. On the other hand, as the world
has realized the importance of environmental protection, the development of a low carbon transportation system has become an important solution. The electric vehicle has
brought a lot of benefits, such as environmentally friendly, clean and no pollutant
emissions. As a result, it might be regarded a potential new energy vehicle that has
piqued the interest of consumers, industry, and researchers.
Supercapacitors were also known as ultra-capacitors are being evaluated as one of
the viable energy storage choices for future generations. These gadgets have been found
to be useful in a range of applications, namely powering hybrid electric/electric
automobiles and other electrical and electronic devices that enable energy to perform.
Supercapacitors are the most flexible devices, widely used for supplying electrical energy
quickly and in applications that need a long shelf life. As a result, there are considerable
market demands for supercapacitors' development, and long-term advancement is
necessary for their successful improvement and commercialization.
New electronic and optoelectronic gadgets have recently grown on the market,
requiring more dependable power sources with higher energy density and longer
duration. Owing to their, pollution-free nature, stability, and high power density,
supercapacitors have emerged as feasible options for energy storage. Traditional
supercapacitors' poor energy density prevents them from being widely used, leading
researchers to look into new forms of supercapacitors with better performance. Increasing
the electrochemical performance of supercapacitors through the development of
innovative electrode materials has been a major focus of study in recent decades.
Asymmetric supercapacitors (ASCs) made consisting of two different electrode materials
xi
have a large working voltage window, enabling them to substantially increase energy
density. In this research work, asymmetric super-capacitors electrode (ASCs) has been
fabricated using Metal-Organic-Frameworks (MOF) derived mixed metallic oxides @CC
as a positively charged electrode and MOF-derived nanoporous carbon (NPC) based
material as a negatively charged electrode by a cost-effective hydrothermal method. The
substantial materials are zinc-cobalt nitrates and 2-methylimidazole. The hydrothermal
method is used to produce all samples.