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 Faculty Publications 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/. Creator An entity primarily responsible for making the resource Molahalli, Vandana; Bhat, Vinay S.; Sharma, Aman; Soman, Gowri; Hegde, Gurumurthy Title A name given to the resource Turning mango kernel waste into high-energy porous carbon: a sustainable electrode material for high-performance supercapacitors with exceptional stability Date A point or period of time associated with an event in the lifecycle of the resource 01-01-2025 Source A related resource from which the described resource is derived RSC Advances;Volume;15;Issue;18;pp.14183-14193 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1039/d5ra02129d" target="_blank" rel="noreferrer noopener">https://doi.org/10.1039/d5ra02129d</a> <br /><br /><a href="https://www.scopus.com/pages/publications/105004201137?origin=resultslist" target="_blank" rel="noreferrer noopener">https://www.scopus.com/pages/publications/105004201137?origin=resultslist</a> Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Molahalli V., Department of Physics, B. M. S. College of Engineering, Bengaluru, 560019, India, Centre for Nano-Materials &amp; Displays, B. M. S. College of Engineering, Bengaluru, 560019, India; Bhat V.S., Department of Physics, Mangalore University, Mangalagangotri, 574199, India; Sharma A., Department of Chemistry, School of Sciences, Christ University, Karnataka, Bengaluru, 560029, India, Centre for Advanced Research and Development (CARD), Christ University, Karnataka, Bengaluru, 560029, India; Soman G., Department of Chemistry, School of Sciences, Christ University, Karnataka, Bengaluru, 560029, India, Centre for Advanced Research and Development (CARD), Christ University, Karnataka, Bengaluru, 560029, India; Hegde G., Department of Chemistry, School of Sciences, Christ University, Karnataka, Bengaluru, 560029, India, Centre for Advanced Research and Development (CARD), Christ University, Karnataka, Bengaluru, 560029, India Description An account of the resource This study explores the sustainable production of high-performance supercapacitor electrodes from waste mango kernels, addressing the growing need for eco-friendly energy storage solutions. Porous carbon materials were synthesized via pyrolysis at varying temperatures (700, 800, 900, and 1000 C), designated as MK7, MK8, MK9, and MK10, respectively. The synthesized carbon was obtained via a simple and eco-friendly carbonization, yielding a highly porous structure with a large specific surface area of 1348.9 m2 g?1, for MK9 material as confirmed by BET analysis. Raman spectroscopy revealed a high degree of graphitization with D and G bands, indicating the presence of both disordered and graphitic carbon domains. SEM imaging showed a well-developed, interconnected porous morphology, while XRD patterns confirmed the amorphous nature with partially crystalline domains. The resulting carbon materials were evaluated for their electrochemical performance in supercapacitor applications. Electrochemical characterization revealed that the MK9 sample, pyrolyzed at 900 C, exhibited the highest specific capacitance of 205.8 F g?1, surpassing the performance of the other samples. To optimize device performance, symmetric supercapacitors were fabricated using a CR2032 coin cell configuration with different electrolytes and concentrations. The KOH electrolyte device demonstrated a maximum power density of 5137.86 W kg?1, an energy density of 12.32 W h kg?1, and a specific capacitance of 112.4 F g?1. Furthermore, this device exhibited excellent cycling stability, maintaining its performance over 100 000 galvanostatic charge-discharge cycles. A practical demonstration showed the ability of the device to power a red LED for approximately 15 minutes. These results highlight the potential of utilizing waste biomass, specifically mango kernels, for sustainable and efficient supercapacitor development. 2025 The Royal Society of Chemistry. Publisher An entity responsible for making the resource available Royal Society of Chemistry Relation A related resource ISSN: 20462069; CODEN: RSCAC Language A language of the resource English Type The nature or genre of the resource Article Rights Information about rights held in and over the resource All Open Access; Gold Open Access; Green Open Access Format The file format, physical medium, or dimensions of the resource online