Carbon inverse opal macroporous monolithic structures as electrodes for Na-ion and K-ion batteries

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dc.contributor.authorCarroll, Aoife
dc.contributor.authorGrant, Alex
dc.contributor.authorZhang, Yan
dc.contributor.authorGulzar, Umair
dc.contributor.authorAhad, Syed Abdul
dc.contributor.authorGeaney, Hugh
dc.contributor.authorO'Dwyer, Colm
dc.contributor.funderEuropean Regional Development Fund
dc.contributor.funderIrish Research Council
dc.contributor.funderHorizon 2020
dc.contributor.funderScience Foundation Ireland
dc.date.accessioned2024-04-30T15:53:19Z
dc.date.available2024-04-27T18:21:07Zen
dc.date.available2024-04-30T15:53:19Z
dc.date.issued2024-03-27
dc.date.updated2024-04-27T17:21:09Zen
dc.description.abstractHighly ordered three-dimensionally structured carbon inverse opals (IOs) produced from sucrose are stable electrodes in sodium-ion and potassium-ion batteries. The walls of the ordered porous carbon structure contain short-range graphitic areas. The interconnected open-worked structure defines a conductive macroporous monolithic electrode that is easily wetted by electrolytes for Na-ion and K-ion systems. Electrochemical characterization in half-cells against Na metal electrodes reveals stable discharge capacities of 25 mAh g−1 at 35 mA g−1 and 40 mAh g−1 at 75 mA g−1 and 185 mA g−1. In K-ion half cells, the carbon IO delivers capacities of 32 mAh g−1 at 35 mA g−1 and ∼25 mAh g−1 at 75 mA g−1 and 185 mA g−1. The IOs demonstrate storage mechanisms involving both capacitive and diffusion-controlled processes. Comparison with non-templated carbon thin films highlights the superior capacity retention (72% for IO vs 58% for thin film) and cycling stability of the IO structure in Na-ion cells. Robust structural integrity against volume changes with larger ionic radius of potassium ions is maintained after 250 cycles in K-ion cells. The carbon IOs exhibit stable coulombic efficiency (>99%) in sodium-ion batteries and better coulombic efficiency during cycling compared to typical graphitic carbons.
dc.description.sponsorshipIrish Research Council (Advanced Laureate Award IRCLA/19/118; Government of Ireland Postdoctoral Fellowship GOIPD/2021/438); Science Foundation Ireland (12/RC/2278_2)
dc.description.statusPeer revieweden
dc.description.versionPublished Version
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid030529
dc.identifier.citationCarroll, A., Grant, A., Zhang, Y., Gulzar, U., Ahad, S.A., Geaney, H. and O’Dwyer, C. (2024) 'Carbon inverse opal macroporous monolithic structures as electrodes for Na-ion and K-ion batteries', Journal of the Electrochemical Society, 171(3), 030529 (10pp). https://doii.org/10.1149/1945-7111/ad3399
dc.identifier.doihttps://doii.org/10.1149/1945-7111/ad3399
dc.identifier.eissn1945-7111
dc.identifier.endpage10
dc.identifier.issn0013-4651
dc.identifier.issued3
dc.identifier.journaltitleJournal of the Electrochemical Society
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/10468/15830
dc.identifier.volume171
dc.language.isoenen
dc.publisherIOP Publishing
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::RIA/825114/EU/Smart Autonomous Multi Modal Sensors for Vital Signs Monitoring/SmartVista
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Starting Investigator Research Grant/18/SIRG/5484/IE/Silicon Anodes through Nanostructural Development (SAND)/
dc.rights© 2024 The Author(s). Published on behalf of The Electrochemical Society by IOP Publishing Limited. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/ by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCarbon inverse opal macroporous monolithic structures
dc.subjectNa-ion
dc.subjectK-ion
dc.subjectBatteries
dc.subjectElectrodes
dc.titleCarbon inverse opal macroporous monolithic structures as electrodes for Na-ion and K-ion batteries
dc.typeArticle (peer-reviewed)
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