Synergistic CuCoS–PANI materials for binder-free electrodes in asymmetric supercapacitors and oxygen evolution

Haseebul Hassan; Muhammad Waqas Iqbal; Hussein Alrobei; Fareeha Riasat; Amir Muhammad Afzal; Ahmad M. Saeedi; Hasan B. Albargi; Arslan Rehmat

doi:10.1039/D3NA01066J

Synergistic CuCoS–PANI materials for binder-free electrodes in asymmetric supercapacitors and oxygen evolution†

Haseebul Hassan,^a Muhammad Waqas Iqbal,

*^a Hussein Alrobei,^b Fareeha Riasat,^a Amir Muhammad Afzal,

^a Ahmad M. Saeedi,^c Hasan B. Albargi^d and Arslan Rehmat^e

Author affiliations

* Corresponding authors

^a Department of Physics, Riphah International University, Campus Lahore, Pakistan
E-mail: waqas.iqbal@riphah.edu.pk

^b Department of Mechanical Engineering, College of Engineering, Prince Sattam Bin Abdul Aziz University, Al-Kharj, Saudi Arabia

^c Department of Physics, Faculty of Applied Science, Umm AL-Qura University, Makkah 24382, Saudi Arabia

^d Department of Physics, Faculty of Science and Arts, Najran University, PO Box 1988, Najran, Saudi Arabia

^e Department of Physics, Sejong University, South Korea

Abstract

In advanced electronics, supercapacitors (SCs) have received a lot of attention. Nevertheless, it has been shown that different electrode designs that are based on metal sulfides are prone to oxidation, instability, and poor conductance, which severely limits their practical application. We present a very stable, free-standing copper–cobalt sulfide doped with polyaniline as an electrode coated on nickel foam (CuCoS/PANI). The lightweight nickel foam encourages current collection as well as serving as a flexible support. The CuCoS–PANI electrode had a substantially greater 1659 C g⁻¹ capacity at 1.0 A g⁻¹. The asymmetric supercapacitor (ASC) can provide an impressive 54 W h kg⁻¹ energy density while maintaining 1150 W kg⁻¹ power. Additionally, when employed as an electrocatalyst in the oxygen evolution reaction, CuCoS/PANI exhibited a 200 mV overpotential and 55 mV dec⁻¹ Tafel slope, demonstrating its effectiveness in facilitating the reaction.

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DOI: https://doi.org/10.1039/D3NA01066J
Article type: Paper
Submitted: 30 Nov 2023
Accepted: 21 Jan 2024
First published: 26 Jan 2024
This article is Open Access

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Nanoscale Adv., 2024,6, 1507-1523

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Synergistic CuCoS–PANI materials for binder-free electrodes in asymmetric supercapacitors and oxygen evolution

H. Hassan, M. W. Iqbal, H. Alrobei, F. Riasat, A. M. Afzal, A. M. Saeedi, H. B. Albargi and A. Rehmat, Nanoscale Adv., 2024, 6, 1507 DOI: 10.1039/D3NA01066J

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Synergistic CuCoS–PANI materials for binder-free electrodes in asymmetric supercapacitors and oxygen evolution†

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Synergistic CuCoS–PANI materials for binder-free electrodes in asymmetric supercapacitors and oxygen evolution

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