Efficient Fabrication of Cd-Doped NiO Nanostructures as High-Performance Electrode Materials for Supercapacitors

Efficient Fabrication of Cd-Doped NiO Nanostructures as High-Performance Electrode Materials for Supercapacitors | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Efficient Fabrication of Cd-Doped NiO Nanostructures as High-Performance Electrode Materials for Supercapacitors C. Kathiravan, K. Balachandran, J. Venkatesan, A. Mani This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9188977/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 22 Apr, 2026 Read the published version in Journal of Materials Science: Materials in Electronics → Version 1 posted You are reading this latest preprint version Abstract Pure and cadmium-doped NiO nanostructured porous materials, including various concentrations were successfully synthesized via a solvothermal approach consuming citric acid as a hydrolysis-regulating substance and evaluated for supercapacitor applications. Powder X-ray diffraction was employed to examine the phase composition of nanomaterials. The typical crystallite size of the oxide samples ranged from 21 to 9 nm. Fourier transform infrared spectroscopy established the presence of M-O bonding. Morphological investigations revealed a mesoporous, flake-like building in the prepared materials. Energy-dispersive X-ray spectroscopy were used to find out the oxidation states and elemental composition, respectively. Electrochemical performance was analyzed in an aqueous electrolyte using cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy. Among the four electrodes, Cd-Nickel-oxides (X=10%) exhibited the maximum surface redox activity and brought a superior specific capacitance of 832 F g⁻¹ at a current density of 1 A g⁻¹. Solgel Method Nano particles XRD SEM Super Capacitor Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 22 Apr, 2026 Read the published version in Journal of Materials Science: Materials in Electronics → Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-9188977","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":612635813,"identity":"7111013e-69de-4a71-9f2d-4a5888a73509","order_by":0,"name":"C. Kathiravan","email":"","orcid":"","institution":"Muthayammal Engineering College, (Autonomous)","correspondingAuthor":false,"prefix":"","firstName":"C.","middleName":"","lastName":"Kathiravan","suffix":""},{"id":612635817,"identity":"5e82164a-f3c6-4a5d-871a-be632121d68a","order_by":1,"name":"K. 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