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dc.contributor.authorZhang, Y.C
dc.contributor.authorYang, H
dc.contributor.authorWang, W.P
dc.contributor.authorZhang, H.M
dc.contributor.authorLi, R.S
dc.contributor.authorWang, X.X
dc.contributor.authorYu, R.C
dc.description.abstractCuBi O hierarchical microspheres are synthesized via a coprecipitation method, where the effect of the NaOH concentration in precursor solution on the product morphology is investigated. At n(NaOH) = 1 M, irregular microspheres of 0.5-1 μm are produced. With increase in the concentration of NaOH, the microspheres grow bigger in size and more regular in morphology. When the NaOH concentration is increased up to 6 M, regular microspheres of 4-6 μm in diameter are obtained. These microspheres are constructed from nanorods with 30-60 nm in diameter and 200-400 nm in length via the hierarchical self-assembly process. The electrochemical performances of the as-prepared samples are investigated by cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic charge-discharge. It is demonstrated that the sample composed of 0.5-1 μm microspheres exhibits the highest specific capacity, reaching about 1895 F g in a 2 M KOH electrolyte at a measured current density of 1 A g . This value is larger than the specific capacity for most transition metal oxides. Due to its excellent electrochemical performance, CuBi O could find a promising application as the supercapacitor electrode material. 2 4 2 4 -1 -1
dc.publisherElsevier BV
dc.relation.ispartofjournalJournal of Alloys and Compounds
dc.subject.fieldofresearchCondensed Matter Physics
dc.subject.fieldofresearchMaterials Engineering
dc.subject.fieldofresearchResources Engineering and Extractive Metallurgy
dc.titleA promising supercapacitor electrode material of CuBi2O4 hierarchical microspheres synthesized via a coprecipitation route
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationZhang, YC; Yang, H; Wang, WP; Zhang, HM; Li, RS; Wang, XX; Yu, RC, A promising supercapacitor electrode material of CuBi<inf>2</inf>O<inf>4</inf> hierarchical microspheres synthesized via a coprecipitation route, Journal of Alloys and Compounds, 2016, 684, pp. 707-713
gro.hasfulltextNo Full Text
gro.griffith.authorZhang, Haimin

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