Advancing supercapacitor performance: a comprehensive review of electrochemical conversion of coconut shells into activated carbon nanofibers

Abstract

This assessment provides a comprehensive evaluation of the limitations associated with the application of supercapacitors, along with  the imperative to enhance their functionality. Following this, the advantages of Electrochemical Double Layer Capacitors (EDLC) are  discussed in comparison to other types utilized in supercapacitor contexts. The transformation of coconut shells into carbon nanofibers is  extensively investigated through various methodologies, highlighting both their benefits and limitations. It becomes evident that the  current utilization of coconut shells has not yet achieved optimal sustainability or viability for energy storage purposes. Nevertheless,  coconut shells offer a widely available and sustainable resource that can be converted into Activated Carbon nanofibers for energy  storage applications. Diverse techniques have been employed to produce these ACB nanofibers, each targeting specific objectives  including improved energy density, adaptable diameter, reduced energy consumption, and faster charging times. Despite these accomplishments, it is evident that numerous significant properties of carbon nanofibers derived from coconut shells remain unexplored,  leading to substantial knowledge gaps that must be addressed for each technique. Therefore, further research is warranted  to advance the comprehension of key parameters associated with various methods, ultimately facilitating the development of highly  desirable carbon nanofibers sourced from coconut shells and catering to the requirements of sustainable energy storage applications.