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Cobalt oxide functionalized nanoporous carbon electrodes and their excellent supercapacitive performance

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dc.contributor.authorDhawale, D.S.
dc.contributor.authorMane, G.P.
dc.contributor.authorJoseph, S.
dc.contributor.authorTalapaneni, S.N.
dc.contributor.authorAnand, C.
dc.contributor.authorMano, A.
dc.contributor.authorAldeyab, S.S.
dc.contributor.authorLakhi, K.S.
dc.contributor.authorVinu, A.
dc.date.issued2015
dc.descriptionData source: Electronic Supplementary Material, http://www.rsc.org/suppdata/ra/c4/c4ra14041a/c4ra14041a1.pdf
dc.description.abstractNanoporous carbon (CMK-3-150) functionalized with different amounts of cobalt oxide (CoO) nanoparticles was synthesized by an incipient wetness impregnation technique for supercapacitor application. The characterization results reveal that the specific surface area and pore volume of the CoO functionalized CMK-3-150 marginally decrease upon increasing the amount of the CoO whereas the pore diameter and the structure of the CMK-3-150 were not affected even after the functionalization. The electrochemical measurements show that the specific capacitance of the electrodes was enhanced after the functionalization with CoO. Among the electrodes studied, CMK-3-150 functionalized with 15 wt% CoO shows an excellent cycling stability and specific capacitance of 331 F g1, which is ca. two times higher than that of the pure nanoporous carbon. This enhanced performance is due to the combined contribution of electrical double layer capacitance and pseudocapacitance. A symmetric supercapacitor device based on the CMK-3-150-15Co electrode gives the maximum energy density of 29.67 W h kg1 at a power density of 0.07 kW kg1.
dc.identifier.citationRSC Advances, 2015; 5(18):13930-13940
dc.identifier.doi10.1039/c4ra14041a
dc.identifier.issn2046-2069
dc.identifier.issn2046-2069
dc.identifier.urihttps://hdl.handle.net/11541.2/112081
dc.language.isoen
dc.publisherRoyal Society of Chemistry,
dc.relation.fundingARC
dc.relation.fundingUniversity of Queensland start-up grant
dc.relation.fundingKing Saud University
dc.rightsCopyright 2015 Royal Society of Chemistry
dc.source.urihttps://doi.org/10.1039/c4ra14041a
dc.subjectcobalt
dc.subjectcobalt compounds
dc.subjectelectrodes
dc.subjectelectrolytic capacitors
dc.titleCobalt oxide functionalized nanoporous carbon electrodes and their excellent supercapacitive performance
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9915985611501831

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