Abstract
Activated carbons (ACs) are porous carbonaceous materials with high surface-to-volume ratios and improved chemical functionality. The physical and chemical properties of ACs and their performance in various technologies such as energy storage, solar cells, catalysis, and gas adsorption/separation is highly dependent on the carbon precursors and the activation/carbonization methods. Among the carbon precursors, biomass has become the essential precursor for producing ACs because it is renewable, low-cost, and readily available. The carbonization and activation of biomass precursors are usually performed via physical, chemical, mechanical, and electrochemical approaches. So far, many chemical activating agents (acidic, basic, and neutral) have been reported to synthesize ACs from biomass. This is because chemical activation offers the advantages of kinetic-controlled chemical reactions, low-activation temperature, and low cost. In particular, basic KOH and NaOH are widely used for synthesizing biomass-derived ACs, which are used in electrochemical supercapacitors (ESCs) and other potential applications. This chapter comprehensively discusses the general characteristics, methods, advantages, and imitations of ACs prepared from biomass and activated with KOH and NaOH activators by highlighting the fundamentals of ACs. Finally, the application and the performance of ACs produced by KOH and NaOH activation for ESCs application are discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
