Exploring the electrochemical utilization of PANI/CNT-integrated Ni-Mn phosphates for advanced supercapacitor applications

Abbas, Zaheer; Karim, Muhammad Ramzan Abdul; Shehzad, Waseem; Shama, Nemah Abu; Kumar, Jai; Sirajuddin,; Karakuş, Selcan; Soomro, Razium Ali; Nafady, Ayman

doi:10.1016/j.electacta.2023.143350

Electrochimica Acta

2023

DOI: 10.1016/j.electacta.2023.143350

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Exploring the electrochemical utilization of PANI/CNT-integrated Ni-Mn phosphates for advanced supercapacitor applications

Zaheer Abbas,

Muhammad Ramzan Abdul Karim,

Waseem Shehzad

et al.

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2024

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Cited by 3 publications

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PANI-grafted radially porous MnO2 for supercapacitor applications

Sinan-Tatli,

Unur-Yilmaz

2024

J Solid State Electrochem

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PANI-grafted radially porous MnO2 for supercapacitor applications

Sinan-Tatli,

Unur-Yilmaz

2024

J Solid State Electrochem

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Construction of chitosan-supported nickel cobaltite composite for efficient electrochemical capacitor and water-splitting applications

Medany,

Nafady,

Soomro

et al. 2024

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The construction of highly efficient electrode material is of considerable interest, particularly for high capacitance and water-splitting applications. Herein, we present the preparation of a NiCo2O4-Chitosan (NC@Chit) nanocomposite using a simple hydrothermal technique designed for applications in high capacitance and water-splitting. The structure/composition of the NC@Chit composite was characterized using different analytical methods, containing electron microscope (SEM and TEM), and powder X-ray diffraction (XRD). When configured as an anode material, the NC@Chit displayed a high capacitance of 234 and 345 F g−1 (@1Ag−1 for GC/NC and NC@Chit, respectively) in an alkaline electrolyte. The direct use of the catalyst in electrocatalytic water-splitting i.e., HER and OER achieved an overpotential of 240 mV and 310 mV at a current density of 10 mA cm−2, respectively. The obtained Tafel slopes for OER and HER were 62 and 71 mV dec−1, respectively whereas the stability and durability of the fabricated electrodes were assessed through prolonged chronoamperometry measurement at constant for 10 h. The electrochemical water splitting was studied for modified nickel cobaltite surface using an impedance tool, and the charge transfer resistances were utilized to estimate the electrode activity.

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Elucidating Electrochemical Energy Storage Performance of Unary, Binary, and Ternary Transition Metal Phosphates and their Composites with Carbonaceous Materials for Supercapacitor Applications

Karim,

Shehzad,

Khan

et al. 2024

J. Electrochem. Sci. Technol

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Transition metal compounds (TMCs) are being researched as promising electrode materials for electrochemical energy storage devices (supercapacitors). Among TMCs, transition metal phosphates (TMPs) have good, layered structures owing to open framework and protonic exchange capability among different layers, good surface area due to engrossed porosity, rich active redox reaction sites owing to octahedral structure and variable valance metallic ions. Hence TMPs become more ideal for supercapacitor electrode materials compared to other TMCs. However, TMPs have got some issues like low conductivity, rate performance, stability, energy, and power densities. But these problems can be addressed by making their composites with carbonaceous materials e.g., carbon nanotubes (CNTs), graphene oxide (GO), graphitic carbon (GC) etc. A few factors like high surface area, excellent electrical conductivity of carbon materials and variable valence metal ions in TMPs caused great enhancement in their electrochemical performance. This article tries to discuss and compare the published data, majorly in last decade, regarding the electrochemical energy storage potential of pristine unary, binary, and ternary TMPs and their hybrid composites with carbonaceous materials (CNTs, GOs/rGOs/, GC etc.). The electrochemical performance of the hybrids has been reported to be higher than the pristine counterparts. It is hoped that the current review will open a new gateway to study and explore the high performance TMPs based supercapacitor materials.

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Exploring the electrochemical utilization of PANI/CNT-integrated Ni-Mn phosphates for advanced supercapacitor applications

Cited by 3 publications

References 51 publications

PANI-grafted radially porous MnO2 for supercapacitor applications

PANI-grafted radially porous MnO2 for supercapacitor applications

Construction of chitosan-supported nickel cobaltite composite for efficient electrochemical capacitor and water-splitting applications

Elucidating Electrochemical Energy Storage Performance of Unary, Binary, and Ternary Transition Metal Phosphates and their Composites with Carbonaceous Materials for Supercapacitor Applications

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