Engineering of high-performance potassium-ion capacitors using polyaniline-derived N-doped carbon nanotubes anode and laser scribed graphene oxide cathode

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dc.contributor.authorMoussa, M.
dc.contributor.authorAl-Bataineh, S.A.
dc.contributor.authorLosic, D.
dc.contributor.authorDubal, D.P.
dc.date.issued2019
dc.description.abstractPotassium (K) ion storage technology is recently receiving a great attention due to their low-cost and enormous abundance on the earth compared to lithium. However, the technology is still at a scientific research stage and exploring suitable electrode materials is a key challenge. Herein, we have engineered nitrogen doped carbon nanotubes (N-CNTs) as a promising anode material for K-ion storage through pyrolytic decomposition of polyaniline nanotubes (PAni-NTs). These N-CNTs delivers high reversible capacity with good rate performance and cycling stability. Taking advantage of these features, a potassium-ion hybrid capacitor (KIHC) is constructed using N-CNTs as battery-type anode and 3-dimensional (3D) laser scribed graphene (LSG) as capacitor-type cathode electrodes. The device displays a high energy density of 65 W h/kg, a high power output of 1000 W/kg, as well as a long cycling life (91% capacity retention over 5000 cycles). Thus, such an advanced energy storage system can satisfy the requirements of high power and high energy densities simultaneously in diverse applications at low-cost.
dc.description.statementofresponsibilityMahmoud Moussa, Sameer A. Al-Bataineh, Dusan Losic, Deepak P. Dubal
dc.identifier.citationApplied Materials Today, 2019; 16:425-434
dc.identifier.doi10.1016/j.apmt.2019.07.003
dc.identifier.issn2352-9407
dc.identifier.issn2352-9407
dc.identifier.orcidMoussa, M. [0000-0001-5890-0851]
dc.identifier.orcidLosic, D. [0000-0002-1930-072X]
dc.identifier.orcidDubal, D.P. [0000-0002-2337-676X]
dc.identifier.urihttp://hdl.handle.net/2440/122787
dc.language.isoen
dc.publisherElsevier
dc.relation.granthttp://purl.org/au-research/grants/arc/FT180100058
dc.relation.granthttp://purl.org/au-research/grants/arc/IH150100003
dc.rights© 2019 Elsevier Ltd. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.apmt.2019.07.003
dc.subjectN-doped carbon nanotubes; graphene; potassium-ion-capacitor
dc.titleEngineering of high-performance potassium-ion capacitors using polyaniline-derived N-doped carbon nanotubes anode and laser scribed graphene oxide cathode
dc.typeJournal article
pubs.publication-statusPublished

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