Three-dimensionally ordered macroporous amorphous C/TiO2 composite electrodes for lithium-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.funderScience Foundation Ireland
dc.contributor.funderIrish Research Council
dc.contributor.funderHorizon 2020
dc.date.accessioned2024-05-01T13:24:19Z
dc.date.available2024-04-29T10:01:04Zen
dc.date.available2024-05-01T13:24:19Z
dc.date.issued2024-02-09
dc.date.updated2024-04-29T09:01:08Zen
dc.description.abstractA facile method utilizing colloidal templating and sucrose as a carbon precursor is used to synthesize highly ordered, porous inverse opal structures as C/TiO2 nanocomposites. Material characterization shows amorphous TiO2 and a large pore size of ∼400 nm allowing for enhanced electrolyte penetration. C/TiO2 inverse opals materials as electrodes in Li-ion battery half cells demonstrate discharge and charge capacities of ∼870 mAh g−1 and 470 mAh g−1, respectively, at a current density of 150 mA g−1. The enhanced capacities, which surpass theoretical limits for TiO2 and carbon based on intercalation reactions, are analyzed under voltammetric conditions to assess relative contributions to capacity from diffusion-limited intercalation and capacitive charge compensation reactions. The porous structure contributes to excellent capacity retention, rate performance and improved Coulombic efficiency (99.6% after 250 cycles), compared to individual carbon and TiO2 inverse opals.
dc.description.sponsorshipIrish Research Council (Advanced Laureate Award IRCLA/19/118; Government of Ireland Postdoctoral Fellowship GOIPD/2021/438)
dc.description.statusPeer revieweden
dc.description.versionPublished Version
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid010502
dc.identifier.citationCarroll, A., Grant, A., Zhang, Y., Gulzar, U., Ahad, S. A., Geaney, H. and O'Dwyer, C. (2024) 'Three-dimensionally ordered macroporous amorphous C/TiO2 composite electrodes for lithium-ion batteries', ECS Advances, 3(1), 010502 (10pp). https://doi.org/10.1149/2754-2734/ad248e
dc.identifier.doi10.1149/2754-2734/ad248e
dc.identifier.eissn2754-2734
dc.identifier.endpage10
dc.identifier.issued1
dc.identifier.journaltitleECS Advances
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/10468/15831
dc.identifier.volume3
dc.language.isoenen
dc.publisherIOP Publishing
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Starting Investigator Research Grant/18/SIRG/5484/IE/Silicon Anodes through Nanostructural Development (SAND)/
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::RIA/825114/EU/Smart Autonomous Multi Modal Sensors for Vital Signs Monitoring/SmartVista
dc.rights© 2024, the Authors. 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.subjectThree-dimensionally ordered macroporous amorphous C/TiO2 composite electrodes
dc.subjectLithium-ion batteries
dc.subject~Chemistry - Journal Articles~en
dc.subject~Tyndall National Institute - Journal Articles~en
dc.titleThree-dimensionally ordered macroporous amorphous C/TiO2 composite electrodes for lithium-ion batteries
dc.typeArticle (peer-reviewed)
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