Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Acid functionalized Arachis hypogaea skin based carbon nanosphere as efficacious material for enhanced energy storage Subject The topic of the resource Arachis hypogea; Current density; Energy density; Power density; Supercapacitor Description An account of the resource The present introduces a single step approach for enhancing supercapacitor performance by utilizing acid-functionalized porous carbon derived from the inner skin of Arachis hypogaea as a sustainable biomass precursor. Through pyrolysis at 800 C in a nitrogen atmosphere, the resulting porous carbon material demonstrates unique structural and electrochemical behavior as confirmed by FTIR, XRD, Raman spectroscopy, FE-SEM, HR-TEM,EDS,BET analyses. The acid functionalized variant (FAH8) significantly outperformed the non-functionalized carbon (AH8), showing a fourfold increase in specific capacitance. Electrochemical evaluations revealed that FAH8 achieved a high specific capacitance of 273 Fg?1 at 0.25 Ag?1 in 3 M KOH, with an energy density of 22.5 Wh kg?1 and a power density of 125 W kg?1 in a three-electrode setup. The symmetrical CR2032 device of FAH8 exhibited a maximum capacitance of 98 Fg?1 and displayed excellent stability, with 98.5 % efficiency and 97.4 % capacitance retention after 7500 cycles. Notably, the device also delivered a high energy density of 23.17 Wh kg?1 and power density of 325.0 W kg?1. The enhanced performance attributed by the simple acid functionalization highlights the potential of this material in energy storage. Thus, the study not only emphasizes the effective use of low-cost biomass precursors but also provides a straightforward functionalization strategy to boost energy storage capabilities, paving the way for sustainable high-performance supercapacitors. 2025 Elsevier Ltd Creator An entity primarily responsible for making the resource Soman G.; Molahalli V.; Sayeed K.; Pandey K.; Kulkarni B.B.; Hegde G. Source A related resource from which the described resource is derived Journal of Energy Storage, Vol-111 Publisher An entity responsible for making the resource available Elsevier Ltd Date A point or period of time associated with an event in the lifecycle of the resource 2025-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1016/j.est.2025.115373" target="_blank" rel="noreferrer noopener">https://doi.org/10.1016/j.est.2025.115373</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85214809142&amp;doi=10.1016%2Fj.est.2025.115373&amp;partnerID=40&amp;md5=ac6590c2ffe01bb98518062f5f570665" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85214809142&amp;doi=10.1016%2fj.est.2025.115373&amp;partnerID=40&amp;md5=ac6590c2ffe01bb98518062f5f570665</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 2352152X Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Soman G., Department of Chemistry, Christ University, Bangalore, 560029, India, Centre for Advanced Research and Development (CARD), Christ University, Bangalore, 560029, India; Molahalli V., Department of Physics, B.M.S. College of Engineering, Bull Temple Road, Bengaluru, 560019, India, Centre for Nano-Materials &amp; Displays, B.M.S.College of Engineering, Bull Temple Road, Bengaluru, 560019, India; Sayeed K., Centre for Nano and Soft Matter Sciences, Karnataka, Bengaluru, 562162, India; Pandey K., Centre for Nano and Soft Matter Sciences, Karnataka, Bengaluru, 562162, India; Kulkarni B.B., Materials Science &amp; Catalysis Division, Poornaprajna Institute of Scientific Research (PPISR), Bidalur Post, Devanahalli, Karnataka, Bangalore, 562164, India; Hegde G., Department of Chemistry, Christ University, Bangalore, 560029, India, Centre for Advanced Research and Development (CARD), Christ University, Bangalore, 560029, India