Construction of a binder-free PANI-CQD-Cu electrode <i>via</i> an electrochemical method for flexible supercapacitor applications

Shanmugasundaram, Esakkimuthu; Ganesan, Vigneshkumar; Narayanan, Vimalasruthi; Vellaisamy, Kannan; Saleh, Na'il; Thambusamy, Stalin

doi:10.1039/d3na00986f

Nanoscale Adv.

2024

DOI: 10.1039/d3na00986f

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Construction of a binder-free PANI-CQD-Cu electrode via an electrochemical method for flexible supercapacitor applications

Esakkimuthu Shanmugasundaram,

Vigneshkumar Ganesan,

Vimalasruthi Narayanan

et al.

Abstract: In recent years, flexible hybrid supercapacitors (FSCs) have played a significant role in energy storage applications owing to their superior flexibility and electrochemical properties.

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NiCo MOF@Carbon Quantum Dots Anode with Soot Derived Activated Carbon Cathode: An Efficient Asymmetric Configuration for Sustainable High‐Performance Supercapacitors

Kumari,

Prajapati,

Ravi Kant

2024

Advanced Sustainable Systems

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Metal‐organic frameworks (MOFs) exhibit excellent crystalline, hierarchical porous structures and have garnered great scientific interest as a key material for supercapacitor applications. However, the low conductivity of MOFs poses a great challenge to fully utilize their potential. Carbon quantum dots (CQDs) prepared from waste edible soybean oil have been skillfully incorporated into NiCo MOF to enhance supercapacitive performance with its high electronic conductivity and rapid charge transfer kinetics. Symmetrical, spherical CQDs synthesized using the hydrothermal method have been decorated on NiCo MOF nanosheets using a facile solvothermal technique to form the NiCo MOF@CQDs composite. The new composite retains the desirable crystalline structure and hierarchical porosity of MOFs, while the integration of CQDs contributes to enhanced conductivity, yielding a superior specific capacitance of 1063.02 Fg−1 (0.5 Ag−1). An asymmetric supercapacitor device has been fabricated using NiCo MOF@CQDs as positive electrode and waste soybean oil‐derived activated‐carbon as negative electrode. The assembled device shows a remarkable energy and power density of 30.61 Whkg−1 and 0.62 kWkg−1, respectively. Moreover, the device demonstrates a promising Coulombic efficiency of 84.53%, with capacitance retention of 88.61% over 5000 charge–discharge cycles. This work highlights existing challenges and potential sustainable solutions in the realm of emerging energy storage devices.

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NiCo MOF@Carbon Quantum Dots Anode with Soot Derived Activated Carbon Cathode: An Efficient Asymmetric Configuration for Sustainable High‐Performance Supercapacitors

Kumari,

Prajapati,

Ravi Kant

2024

Advanced Sustainable Systems

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Microwave irradiation effect of La2O3-CeO2 nanocomposites as a potential electrode material for asymmetric supercapacitor

Riyas,

Prabhu

2024

Ionics

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Construction of a binder-free PANI-CQD-Cu electrode via an electrochemical method for flexible supercapacitor applications

Abstract: In recent years, flexible hybrid supercapacitors (FSCs) have played a significant role in energy storage applications owing to their superior flexibility and electrochemical properties.

Cited by 2 publications

References 99 publications

NiCo MOF@Carbon Quantum Dots Anode with Soot Derived Activated Carbon Cathode: An Efficient Asymmetric Configuration for Sustainable High‐Performance Supercapacitors

NiCo MOF@Carbon Quantum Dots Anode with Soot Derived Activated Carbon Cathode: An Efficient Asymmetric Configuration for Sustainable High‐Performance Supercapacitors

Microwave irradiation effect of La2O3-CeO2 nanocomposites as a potential electrode material for asymmetric supercapacitor

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