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AuthorXing, Chunxian
AuthorMusharavati, Farayi
AuthorLi, Hui
AuthorZalezhad, Erfan
AuthorHui, Oscar K. S.
AuthorBae, Sungchul
AuthorCho, Bum-Yean
Available date2020-11-02T08:32:04Z
Publication Date2017
Publication NameRSC Advances
ResourceScopus
ISSN20462069
URIhttp://dx.doi.org/10.1039/c7ra06670h
URIhttp://hdl.handle.net/10576/16851
AbstractNickel-cobalt layered double hydroxides (Ni-Co-LDH) have recently been examined for their potential as battery-type hybrid supercapacitors made from metal hydroxide electrode materials, due to their unique spatial structure, excellent electrochemical activity, and good electrical conductivity. However, the main disadvantage restricting the application of Ni-Co-LDHs is their low electronic conductivity, which results in low capacitance. To address this problem, we used different concentrations of ammonium fluoride to control the Ni-Co-LDH surface morphology and direct growth on Ni foam (NF). We created Ni-Co-LDH composite electrode materials with different morphologies that showed large surface areas, high conductivity, and high electrochemical performance. Results showed that the samples prepared with ammonium fluoride additive had a higher specific capacity of about 1445 F g-1 at a current density of 2 A g-1, a good specific capacitance rate of about 59.5% from 2 A g-1 to 40 A g-1, and good capacity retention of up to 99% when the current density was enhanced to 30 A g-1, suggesting promise for future applications.
Languageen
PublisherRoyal Society of Chemistry
SubjectElectrochemical Capacitors
Cobaltous Sulfide
Electrode Materials
TitleSynthesis, characterization, and properties of nickel-cobalt layered double hydroxide nanostructures
TypeArticle
Pagination38945-38950
Issue Number62
Volume Number7
dc.accessType Open Access


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