Metal-Node-Engineered MOF-Derived Cobalt Manganese Selenide with Synergetic Surface Tailoring for Energy Storage Applications

Antonysamy Dennyson Savariraj, Loganathan Kulandaivel, Jeong Won Park, Periyasamy Sivakumar, Ramu Manikandan, Byung Chul Kim, Hyun Jung

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Nickel foam-supported binder-free cobalt manganese selenide (CoMnSe@NF) was grown by in situ deposition using metal organic frameworks (MOFs) as the template with metal node engineering. The CoMnSe@NF electrode employed as the positive electrode for supercapacitors delivered well-pronounced conductivity, a high areal capacity (Ca) of 1714 mC cm-2 at 1 mA cm-2, and a specific capacity (Cs) of 519 C g1- (1 A g-1) withstanding over 5000 cycles with a good retention of 87% of its initial capacity. The outstanding electrochemical profile of CoMnSe@NF can be credited to the tailor-made synergetic surface, bearing densely packed 2-dimensional sheets harboring numerous redox sites with an even distribution of voids, allowing easy passageway and diffusion of the electrolyte. Armed with the said caliber of CoMnSe@NF, the asymmetric device fabricated (CoMnSe@NF-2h//O, N, S@AC@NF) delivered a remarkable specific capacity (Cs) of 139 C g-1, maximum energy density (Es) of 35.47 W h kg-1, and a power density of 11,500 W kg-1, remaining intact beyond 10,000 charge-discharge cycles and retaining 82.6% of the initial capacity.

Original languageEnglish
Pages (from-to)735-748
Number of pages14
JournalACS Applied Energy Materials
Volume7
Issue number2
DOIs
StatePublished - 22 Jan 2024
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2024 American Chemical Society.

Funding

This research was supported by the National Research Foundation of Korea (NRF), funded by the Korean government (MSIT) (nos. NRF-2022R1F1A1063811 and NRF-2022R1F1A1064008).

FundersFunder number
Ministry of Science, ICT and Future PlanningNRF-2022R1F1A1063811, NRF-2022R1F1A1064008
National Research Foundation of Korea

    Keywords

    • 2-dimensional sheets
    • cobalt manganese selenide
    • metal node engineering
    • metal organic frameworks
    • synergetic surface tailoring

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