Synthesis and Characterization of a NiCo2O4@NiCo2O4 Hierarchical Mesoporous Nanoflake Electrode for Supercapacitor Applications

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dc.contributor.authorChen, Xin
dc.contributor.authorLi, Hui
dc.contributor.authorXu, Jianzhou
dc.contributor.authorJaber, Fadi
dc.contributor.authorMusharavati, Farayi
dc.contributor.authorZalnezhad, Erfan
dc.contributor.authorBae, S.
dc.contributor.authorHui, Kwan San
dc.contributor.authorHui, Kwun Nam
dc.contributor.authorLiu, Junxing
dc.date.accessioned2021-04-19T15:21:37Z
dc.date.available2021-04-19T15:21:37Z
dc.date.issued2020-06-30
dc.date.updated2021-04-19T15:21:39Z
dc.description.abstractIn this study, we synthesized binder-free NiCo2O4@NiCo2O4 nanostructured materials on nickel foam (NF) by combined hydrothermal and cyclic voltammetry deposition techniques followed by calcination at 350 ◦C to attain high-performance supercapacitors. The hierarchical porous NiCo2O4@NiCo2O4 structure, facilitating faster mass transport, exhibited good cycling stability of 83.6% after 5000 cycles and outstanding specific capacitance of 1398.73 F g(-1) at the current density of 2 A·g(−1), signifying its potential for energy storage applications. A solid-state supercapacitor was fabricated with the NiCo2O4@NiCo2O4 on NF as the positive electrode and the active carbon (AC) was deposited on NF as the negative electrode, delivering a high energy density of 46.46 Wh kg(-1) at the power density of 269.77 W kg(-1). This outstanding performance was attributed to its layered morphological characteristics. This study explored the potential application of cyclic voltammetry depositions in preparing binder-free NiCo2O4@NiCo2O4 materials with more uniform architecture for energy storage, in contrast to the traditional galvanostatic deposition methods.
dc.description.departmentBiomedical Engineering and Chemical Engineering
dc.identifierdoi: 10.3390/nano10071292
dc.identifier.citationNanomaterials 10 (7): 1292 (2020)
dc.identifier.urihttps://hdl.handle.net/20.500.12588/500
dc.rightsAttribution 4.0 United States
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectsupercapacitors
dc.subjectelectrodeposition
dc.subjectNiCo2O4
dc.subjectnanostructure
dc.titleSynthesis and Characterization of a NiCo2O4@NiCo2O4 Hierarchical Mesoporous Nanoflake Electrode for Supercapacitor Applications
dc.typeArticle

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