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 Electrochemical characteristics of Co3O4 nanoparticles synthesized via the hydrothermal approach for supercapacitor applications Subject The topic of the resource Diffusion-controlled; Hydrothermal method; Pseudocapacitors; Scan rates; Specific capacitance Description An account of the resource Cobalt oxide (Co3O4), a transition metal oxide known for its favourable capacitive properties and surface characteristics, is a promising candidate for electrode materials in supercapacitive energy storage applications. This study presents a comprehensive analysis of cobalt oxide nanoparticles synthesized through the hydrothermal method at varying synthesis temperatures, focusing on their structural, optical, electrochemical, and surface properties. X-ray diffraction analysis confirmed the cubic spinel structure of Co3O4, while Raman spectroscopy verified the phase composition of the nanoparticles. X-ray photoelectron spectroscopy offered insights into the near-surface chemistry of the synthesized material. The study determined two direct bandgaps of Co3O4 through absorption spectra and Tauc plots. To assess surface morphology and particle size distribution, field-emitting scanning electron microscopy and transmission electron microscopy were employed. Electrochemical investigations involved cyclic voltammetry and Nyquist plots, while galvanostatic chargedischarge tests demonstrated a specific capacitance (Csp) of 450 Fg?1 at 1 Ag?1. Impedance analysis indicated favourable capacitive behaviour with low charge transfer resistance. Furthermore, the study observed cyclic stability with a capacitive retention rate exceeding 88% at a current density of 20 Ag?1 over 10,000 cycles. The paper also discusses the capacitive and diffusion-controlled charge storage mechanisms at lower scan rates, emphasizing the potential of Co3O4 nanoparticles as the electrode material in the development of supercapacitor devices. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Creator An entity primarily responsible for making the resource Babu C.R.; Avani A.V.; Shaji S.; Anila E.I. Source A related resource from which the described resource is derived Journal of Solid State Electrochemistry, Vol-28, No. 7, pp. 2203-2210. Publisher An entity responsible for making the resource available Springer Science and Business Media Deutschland GmbH Date A point or period of time associated with an event in the lifecycle of the resource 2024-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1007/s10008-023-05744-y" target="_blank" rel="noreferrer noopener">https://doi.org/10.1007/s10008-023-05744-y</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85177165587&amp;doi=10.1007%2Fs10008-023-05744-y&amp;partnerID=40&amp;md5=de3a553586fcfb2ed841c9e93498cad3" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85177165587&amp;doi=10.1007%2fs10008-023-05744-y&amp;partnerID=40&amp;md5=de3a553586fcfb2ed841c9e93498cad3</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 14328488 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 Babu C.R., Christ (Deemed to Be University), Karnataka, Bengaluru, 560029, India; Avani A.V., Christ (Deemed to Be University), Karnataka, Bengaluru, 560029, India; Shaji S., Autonomous University of Nuevo Le, San Nicolas de los Garza, 66451, Mexico; Anila E.I., Christ (Deemed to Be University), Karnataka, Bengaluru, 560029, India