DC FieldValueLanguage
dc.contributor.authorOjha, Manoranjan-
dc.contributor.authorLe Houx, James-
dc.contributor.authorMukkabla, Radha-
dc.contributor.authorKramer, Denis-
dc.contributor.authorWills, Richard George Andrew-
dc.contributor.authorDeepa, Melepurath-
dc.date.accessioned2022-05-06T11:40:32Z-
dc.date.available2022-05-06T11:40:32Z-
dc.date.issued2019-06-20-
dc.identifier.issn0013-4686-
dc.description.abstractA facile scalable strategy is reported for the synthesis of a hybrid of lithium titanate (Li 4 Ti 5 O 12 or LTO)and 1-pyrenecarboxylic acid decorated multiwalled carbon nanotubes (PCA@CNTs). LTO platelets comprising of quasi-spherical nanoparticles afford short diffusion paths for electrolyte ions. PCA@CNTs, enhance the electrical conductivity of the nearly insulating LTO by 3 orders of magnitude, thus maximizing the ion-uptake capability of the hybrid. Symmetric and asymmetric supercapacitors with the LTO/PCA@CNTs hybrid supported over Ni foam substrates are assembled with a novel Li + conducting alginate gel, in air without any inert conditions that are typically used for all LTO based devices. The gel shows an average ionic conductivity of ∼8.4 mS cm −1 at room temperature, and is found to be electrochemically stable over a wide operational voltage window of ∼2.5 V. Benefitting from the synergy of electrical double layer (EDL)storage afforded by PCA@CNTs, ion-storage by LTO through a redox reaction and EDL, and the ease ion-movement across the cell due to the open architecture of CNTs, the asymmetric LTO/PCA@CNTs hybrid cell outperforms the symmetric cells by a large margin. The best areal specific capacitance (SC), volumetric SC and energy density are ∼54 mF cm −2 , ∼4.3 F cm −3 (at 0.5 mA cm −2 )and ∼3.7 mWh cm −3 (at a power density of 49.6 mW cm −3 )significantly enhanced for the asymmetric LTO/PCA@CNTs hybrid cell, compared to the symmetric- PCA@CNTs and hybrid cells. The design is simple to implement and can serve as a prototype to develop a range of yet unexplored LTO/carbon nanomaterial based supercapacitors.de_DE
dc.description.sponsorshipEnergy Technology Research Group, Faculty of Engineering and Physical Sciences, University of Southampton, United Kingdomde_DE
dc.language.isoende_DE
dc.publisherElsevierde_DE
dc.relation.ispartofElectrochimica Actade_DE
dc.subjectCapacitancede_DE
dc.subjectCarbon nanotubesde_DE
dc.subjectEnergy densityde_DE
dc.subjectLithium titanatede_DE
dc.subjectSupercapacitorde_DE
dc.subject.ddcDDC::500 Naturwissenschaften und Mathematik::540 Chemie::541 Physikalische Chemiede_DE
dc.titleLithium titanate/pyrenecarboxylic acid decorated carbon nanotubes hybrid - Alginate gel supercapacitorde_DE
dc.typeArticlede_DE
dc.identifier.doi10.1016/j.electacta.2019.03.211-
dcterms.bibliographicCitation.volume309de_DE
dcterms.bibliographicCitation.issue20 June 2019de_DE
dcterms.bibliographicCitation.pagestart253de_DE
dcterms.bibliographicCitation.pageend263de_DE
dcterms.bibliographicCitation.originalpublisherplaceNew York, NY [u.a.]de_DE
local.submission.typeonly-metadatade_DE
dc.description.peerReviewedYesde_DE
dc.type.articleScientific Articlede_DE
item.grantfulltextnone-
item.fulltext_sNo Fulltext-
item.languageiso639-1en-
item.fulltextNo Fulltext-
item.openairetypeArticle-
crisitem.author.deptComputational Material Design-
crisitem.author.parentorgFakultät für Maschinenbau und Bauingenieurwesen-
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