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dc.contributor.authorBaby, Rakhi Raghavan
dc.contributor.authorAhmed, Bilal
dc.contributor.authorAnjum, Dalaver H.
dc.contributor.authorAlshareef, Husam N.
dc.date.accessioned2016-07-18T09:18:32Z
dc.date.available2016-07-18T09:18:32Z
dc.date.issued2016-07-14
dc.identifier.citationDirect chemical synthesis of MnO2 nanowhiskers on MXene surfaces for supercapacitor applications 2016 ACS Applied Materials & Interfaces
dc.identifier.issn1944-8244
dc.identifier.issn1944-8252
dc.identifier.pmid27377125
dc.identifier.doi10.1021/acsami.6b04481
dc.identifier.urihttp://hdl.handle.net/10754/617087
dc.description.abstractTransition metal carbides (MXenes) are an emerging class of two dimensional (2D) materials with promising electrochemical energy storage performance. Herein, for the first time, by direct chemical synthesis, nanocrystalline ε-MnO2 whiskers were formed on MXene nanosheet surfaces (ε-MnO2/Ti2CTx and ε-MnO2/Ti3C2Tx) to make nanocomposite electrodes for aqueous pseudocapacitors. The ε-MnO2 nanowhiskers increase the surface area of the composite electrode and enhance the specific capacitance by nearly three orders of magnitude compared to pure MXene based symmetric supercapacitors. Combined with enhanced pseudocapacitance, the fabricated ε-MnO2/MXene supercapacitors exhibited excellent cycling stability with ~88% of the initial specific capacitance retained after 10000 cycles which is much higher than pure ε-MnO2 based supercapacitors (~74%). The proposed electrode structure capitalizes on the high specific capacitance of MnO2 and the ability of MXenes to improve conductivity and cycling stability.
dc.description.sponsorshipResearch reported in this publication has been supported by King Abdullah University of Science & Technology (KAUST). Authors thank the ‘Advanced Nanofabrication, Imaging and Characterization Laboratory ’and ‘Analytical Chemistry Laboratory’ at KAUST. R.B.Rakhi acknowledges the support of Ramanujan Fellowship, Department of Science and Technology (DST), Govt.of India and CSIR-NIIST Thiruvananthapuram, India.
dc.language.isoen
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acsami.6b04481
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acsami.6b04481.
dc.titleDirect chemical synthesis of MnO2 nanowhiskers on MXene surfaces for supercapacitor applications
dc.typeArticle
dc.contributor.departmentElectron Microscopy
dc.contributor.departmentFunctional Nanomaterials and Devices Research Group
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalACS Applied Materials & Interfaces
dc.eprint.versionPost-print
dc.contributor.institutionChemical Sciences and Technology division, CSIR-National Institute of Interdisciplinary Sciences and Technology (CSIR-NIIST), Thiruvananthapuram, Kerala, India, 695019
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personBaby, Rakhi Raghavan
kaust.personAhmed, Bilal
kaust.personAnjum, Dalaver H.
kaust.personAlshareef, Husam N.
refterms.dateFOA2017-07-05T00:00:00Z
dc.date.published-online2016-07-14
dc.date.published-print2016-07-27


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