High electrochemical performance of MnCo2O4.5 nanoneedles/NiCo LDH nanosheets as advanced electrodes of supercapacitor

Zhang, He; Xiong, Tao; Chen, Rui; Wang, Yanxi; Fang, Cimei; Xu, Longjun; Liu, Chenglun

doi:10.1016/j.electacta.2023.142412

Electrochimica Acta

2023

DOI: 10.1016/j.electacta.2023.142412

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High electrochemical performance of MnCo2O4.5 nanoneedles/NiCo LDH nanosheets as advanced electrodes of supercapacitor

He Zhang

Tao Xiong

Rui Chen

et al.

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2024

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Cited by 23 publications

References 49 publications

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Carbon quantum dots modified and Y³⁺ doped Ni₃(NO₃)₂(OH)₄ nanospheres with excellent battery‐like supercapacitor performance

Gao,

Xie,

Zuo

et al. 2024

Chemistry A European J

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Supercapacitor is an important energy storage device widely used in the automobile industry, military production, and communication equipment because of its fast charge‐discharge rate, and high power density. Herein, carbon quantum dots modified and Y3+ doped Ni3(NO3)2(OH)4 (NiY@CQDs) nanospheres are prepared by a solvothermal method and used as an electrode material. The electrochemical properties of NiY@CQDs were measured in a three‐electrode system. An asymmetric supercapacitor (ASC) cell was assembled with activated carbon (AC) as the anode and NiY@CQDs as the cathode. The electrochemical properties of the ASC device were measured in a two‐electrode system. Experimental results show the shape of NiY@CQDs is petal‐shaped and the introducing carbon quantum dots and doping Y3+ significantly increases the specific surface area, conductivity, and specific capacitance of Ni3(NO3)2(OH)4. The mass‐specific capacitance of NiY@CQDs reaches up to 2944 F·g‐1 at a current density of 1 A·g‐1. The asymmetric supercapacitor of NiY@CQDs//AC has a high energy density of 138.65 Wh·kg−1 at a power density of 1500 W·kg−1, displaying a wide range of application prospects in the energy storage area.

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Carbon quantum dots modified and Y³⁺ doped Ni₃(NO₃)₂(OH)₄ nanospheres with excellent battery‐like supercapacitor performance

Gao,

Xie,

Zuo

et al. 2024

Chemistry A European J

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Hydrothermal Synthesis of a Layered ZnO@MnO2 Nanocomposite for High-Performance Supercapacitor Electrodes

Gupta,

Kumar,

Shukla

2024

J. Electron. Mater.

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Exploring the potential of constructing a hybrid supercapacitor with FeCoNi-LDH porous material containing oxygen vacancies for high-performance energy storage applications

Su,

Yang,

et al. 2024

Nano Res.

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High electrochemical performance of MnCo2O4.5 nanoneedles/NiCo LDH nanosheets as advanced electrodes of supercapacitor

Cited by 23 publications

References 49 publications

Carbon quantum dots modified and Y³⁺ doped Ni₃(NO₃)₂(OH)₄ nanospheres with excellent battery‐like supercapacitor performance

Carbon quantum dots modified and Y³⁺ doped Ni₃(NO₃)₂(OH)₄ nanospheres with excellent battery‐like supercapacitor performance

Hydrothermal Synthesis of a Layered ZnO@MnO2 Nanocomposite for High-Performance Supercapacitor Electrodes

Exploring the potential of constructing a hybrid supercapacitor with FeCoNi-LDH porous material containing oxygen vacancies for high-performance energy storage applications

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High electrochemical performance of MnCo2O4.5 nanoneedles/NiCo LDH nanosheets as advanced electrodes of supercapacitor

Cited by 23 publications

References 49 publications

Carbon quantum dots modified and Y3+ doped Ni3(NO3)2(OH)4 nanospheres with excellent battery‐like supercapacitor performance

Carbon quantum dots modified and Y3+ doped Ni3(NO3)2(OH)4 nanospheres with excellent battery‐like supercapacitor performance

Hydrothermal Synthesis of a Layered ZnO@MnO2 Nanocomposite for High-Performance Supercapacitor Electrodes

Exploring the potential of constructing a hybrid supercapacitor with FeCoNi-LDH porous material containing oxygen vacancies for high-performance energy storage applications

Contact Info

Product

Resources

About

Carbon quantum dots modified and Y³⁺ doped Ni₃(NO₃)₂(OH)₄ nanospheres with excellent battery‐like supercapacitor performance

Carbon quantum dots modified and Y³⁺ doped Ni₃(NO₃)₂(OH)₄ nanospheres with excellent battery‐like supercapacitor performance