<i>In situ</i> growth of binder-free CoNi<sub>0.5</sub>-MOF/CC electrode for high-performance flexible solid-state supercapacitor application

Zhang, Weijie; Cao, Zhen; Li, Yuying; Li, Ruiting; Zheng, Yanmei; Su, Ping; Guo, Xinli

doi:10.1039/d3nr06225b

Nanoscale

2024

DOI: 10.1039/d3nr06225b

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In situ growth of binder-free CoNi_0.5-MOF/CC electrode for high-performance flexible solid-state supercapacitor application

Weijie Zhang,

Zhen Cao,

Yuying Li

et al.

Abstract: Metal organic framework (MOF) with binder-free electrode is promising for portable electrochemical energy storage applications. However, its low specific capacitance and difficult attachment of active materials with substrate restrict its...

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A High‐Performance, Low Defected, and Binder‐Free Graphene‐Based Supercapacitor Obtained via Synergistic Electrochemical Exfoliation and Electrophoretic Deposition Process

Abdillah,

Jaoh,

Fitriani

et al. 2024

Chemistry An Asian Journal

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An integrated electrochemical exfoliation and electrophoretic deposition (EPD) method is developed to achieve a high performance graphene supercapacitor. The electrochemical delamination of graphite sheet has obtained a low defected few‐layer graphene adorned with oxygen‐containing functional groups. Then, the EPD process produced a binder‐free electrode to alleviate the graphene restacking problem. The electrode prepared using a deposition voltage of 5V exhibits the highest specific capacitance of 145.95 F/g at 0.5 A/g from three‐electrode measurement. Moreover, this EPD‐prepared electrode also demonstrates superior electrochemical properties compared to electrodes fabricated using PVDF binder. In the real symmetrical cell, the EPD‐prepared electrode also shows excellent performance with a high rate capability of 82.31% (from 0.5 A/g to 10 A/g), high cycling stability of 95.00% (at 5 A/g) after 10,000 cycles, and rapid frequency response with short relaxation time (τ₀) of 9.73 ms. These results indicate that this integration method is beneficial to construct a high performance binder‐free supercapacitor electrode consisting of low‐defected graphene materials, low electrode resistance, and less agglomeration of graphene sheets by utilizing an environmentally friendly process.

show abstract

A High‐Performance, Low Defected, and Binder‐Free Graphene‐Based Supercapacitor Obtained via Synergistic Electrochemical Exfoliation and Electrophoretic Deposition Process

Abdillah,

Jaoh,

Fitriani

et al. 2024

Chemistry An Asian Journal

View full text Add to dashboard Cite

show abstract

Multidimensional woodchips-like Mn-metal-organic framework for asymmetric supercapacitor devices

Veerasamy,

Eswaran,

Punyawudho

et al. 2024

Applied Surface Science Advances

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In situ growth of binder-free CoNi_0.5-MOF/CC electrode for high-performance flexible solid-state supercapacitor application

Abstract: Metal organic framework (MOF) with binder-free electrode is promising for portable electrochemical energy storage applications. However, its low specific capacitance and difficult attachment of active materials with substrate restrict its...

Cited by 2 publications

References 40 publications

A High‐Performance, Low Defected, and Binder‐Free Graphene‐Based Supercapacitor Obtained via Synergistic Electrochemical Exfoliation and Electrophoretic Deposition Process

A High‐Performance, Low Defected, and Binder‐Free Graphene‐Based Supercapacitor Obtained via Synergistic Electrochemical Exfoliation and Electrophoretic Deposition Process

Multidimensional woodchips-like Mn-metal-organic framework for asymmetric supercapacitor devices

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In situ growth of binder-free CoNi0.5-MOF/CC electrode for high-performance flexible solid-state supercapacitor application

Abstract: Metal organic framework (MOF) with binder-free electrode is promising for portable electrochemical energy storage applications. However, its low specific capacitance and difficult attachment of active materials with substrate restrict its...

Cited by 2 publications

References 40 publications

A High‐Performance, Low Defected, and Binder‐Free Graphene‐Based Supercapacitor Obtained via Synergistic Electrochemical Exfoliation and Electrophoretic Deposition Process

A High‐Performance, Low Defected, and Binder‐Free Graphene‐Based Supercapacitor Obtained via Synergistic Electrochemical Exfoliation and Electrophoretic Deposition Process

Multidimensional woodchips-like Mn-metal-organic framework for asymmetric supercapacitor devices

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In situ growth of binder-free CoNi_0.5-MOF/CC electrode for high-performance flexible solid-state supercapacitor application