Promotive Effect of MWCNTs on α-NiS Microstructure and Their Application in Aqueous Asymmetric Supercapacitor

Jai Bhagwan; Jeong In Han

doi:10.1021/acs.energyfuels.2c03080

Promotive Effect of MWCNTs on α-NiS Microstructure and Their Application in Aqueous Asymmetric Supercapacitor

Jai Bhagwan, Jeong In Han

Department of Chemical and Biochemical Engineering

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

To synthesize the efficient morphological electrode nanomaterial with a rough surface is a key parameter in high-energy storage devices. The α-NiS microstructure with rough surface nature is synthesized by the most adoptable hydrothermal method and characterized by different characterization techniques. The end product is subjected as electrode material of a supercapacitor, showing good electrochemical performance. To improve the electrochemical performance of the electrode material, α-NiS@MWCNTs is also synthesized. The specific capacitance (C_s) of 2057 F g^-1at 1 A g^-1is obtained from α-NiS@MWCNT material, which is found to be higher than solely α-NiS material. Asymmetric supercapacitors (ASCs) show an energy density of 27 W h kg^-1at 362 W kg^-1with a current density of 0.5 A g^-1. A kitchen timer, a toy motor fan, and 13 LEDs are also powered from two asymmetric supercapacitors connected in series.

Original language	English
Pages (from-to)	15210-15220
Number of pages	11
Journal	Energy and Fuels
Volume	36
Issue number	24
DOIs	https://doi.org/10.1021/acs.energyfuels.2c03080
State	Published - 15 Dec 2022

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abstract = "To synthesize the efficient morphological electrode nanomaterial with a rough surface is a key parameter in high-energy storage devices. The α-NiS microstructure with rough surface nature is synthesized by the most adoptable hydrothermal method and characterized by different characterization techniques. The end product is subjected as electrode material of a supercapacitor, showing good electrochemical performance. To improve the electrochemical performance of the electrode material, α-NiS@MWCNTs is also synthesized. The specific capacitance (Cs) of 2057 F g-1at 1 A g-1is obtained from α-NiS@MWCNT material, which is found to be higher than solely α-NiS material. Asymmetric supercapacitors (ASCs) show an energy density of 27 W h kg-1at 362 W kg-1with a current density of 0.5 A g-1. A kitchen timer, a toy motor fan, and 13 LEDs are also powered from two asymmetric supercapacitors connected in series.",

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AB - To synthesize the efficient morphological electrode nanomaterial with a rough surface is a key parameter in high-energy storage devices. The α-NiS microstructure with rough surface nature is synthesized by the most adoptable hydrothermal method and characterized by different characterization techniques. The end product is subjected as electrode material of a supercapacitor, showing good electrochemical performance. To improve the electrochemical performance of the electrode material, α-NiS@MWCNTs is also synthesized. The specific capacitance (Cs) of 2057 F g-1at 1 A g-1is obtained from α-NiS@MWCNT material, which is found to be higher than solely α-NiS material. Asymmetric supercapacitors (ASCs) show an energy density of 27 W h kg-1at 362 W kg-1with a current density of 0.5 A g-1. A kitchen timer, a toy motor fan, and 13 LEDs are also powered from two asymmetric supercapacitors connected in series.

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Promotive Effect of MWCNTs on α-NiS Microstructure and Their Application in Aqueous Asymmetric Supercapacitor

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