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dc.contributor.authorAlhebshi, Nuha
dc.contributor.authorAlshareef, Husam N.
dc.date.accessioned2015-12-07T13:25:52Z
dc.date.available2015-12-07T13:25:52Z
dc.date.issued2015-10-28
dc.identifier.citationAlhebshi, N. A., & Alshareef, H. N. (2015). Ternary Ni–Cu–OH and Ni–Co–OH electrodes for electrochemical energy storage. Materials for Renewable and Sustainable Energy, 4(4). doi:10.1007/s40243-015-0064-7
dc.identifier.issn2194-1459
dc.identifier.doi10.1007/s40243-015-0064-7
dc.identifier.urihttp://hdl.handle.net/10754/583305
dc.description.abstractIn this project, Ni–Cu–OH and Ni–Co–OH ternary electrodes have been prepared. Different Ni:Cu and Ni:Co ratios were deposited by chemical bath deposition (CBD) at room temperature on carbon microfibers. Since Ni(OH)2 is notorious for poor cycling stability, the goal of the work was to determine if doping with Cu or Co could improve Ni(OH)2 cycling stability performance and conductivity against reaction with electrolyte. It is observed that the electrodes with Ni:Cu and Ni:Co composition ratio of 100:10 result in the optimum capacitance and cycling stability in both Ni–Cu–OH and Ni–Co–OH electrodes. This improvement in cycling stability can be attributed to the higher redox reversibility as indicated by the smaller CV redox peak separation. In addition, it is found that decreasing Cu and Co ratios, with fixed CBD time, enhances nanoflakes formation, and hence increases electrode capacitance. For the optimum composition (Ni:Co = 100:10), composites of the ternary electrodes with graphene and carbon nanofibers were also tested, with resultant improvement in potential window, equivalent series resistance, areal capacitance and cycling stability.
dc.description.sponsorshipResearch reported in this publication was supported by King Abdullah University of Science and Technology (KAUST)
dc.language.isoen
dc.publisherSpringer Nature
dc.relation.urlhttp://link.springer.com/article/10.1007/s40243-015-0064-7
dc.rightsAvailable under Open Access http://creativecommons.org/licenses/by/4.0/
dc.subjectNickel hydroxide
dc.subjectGraphene
dc.subjectElectrochemical supercapacitors
dc.titleTernary Ni–Cu–OH and Ni–Co–OH electrodes for electrochemical energy storage
dc.typeArticle
dc.identifier.eissn2194-1467
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.journalMaterials for Renewable and Sustainable Energy
dc.eprint.versionPublisher's Version/PDF
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personAlhebshi, Nuha
kaust.personAlshareef, Husam N.
refterms.dateFOA2018-06-13T14:10:27Z
dc.date.published-online2015-10-28
dc.date.published-print2015-12


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