Staff View: Enhancing pseudocapacitive energy storage system performance with electrodeposited CuSx and CoSx biphasic transitional metal sulfide (TMS) based nanostructured electrode on nickel foam

Enhancing pseudocapacitive energy storage system performance with electrodeposited CuSx and CoSx biphasic transitional metal sulfide (TMS) based nanostructured electrode on nickel foam

This study investigated the pseudocapacitive energy storage system of biphasic CuSx and CoSx electrodeposited on nickel foam (NF). XRD, FESEM, and EDX show the formation of nano-flower-shaped biphasic layer on NF. The biphasic electrode shows higher areal specific capacitance (Csp) than the single-l...

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Main Authors:	Mottakin M., Selvanathan V., Su'ait M.S., Razali S.A., Islam M.A., Ibrahim M.A., Muhammad G., Akhtaruzzaman M.
Other Authors:	57195305487
Format:	Article
Published:	Elsevier Ltd 2025
Subjects:	Capacitance Cobalt compounds Cobalt deposits Copper compounds Electric discharges Electrodes Energy storage Nanoflowers Nickel Process control Sulfur compounds Supercapacitor Biphasic design Diffusion-controlled process Metal sulfides Nickel foam Pseudocapacitive Scan rates Storage systems Supercapatterie Transitional metal sulphide Transitional metals Electrodeposition
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spelling	my.uniten.dspace-367292025-03-03T15:44:14Z Enhancing pseudocapacitive energy storage system performance with electrodeposited CuSx and CoSx biphasic transitional metal sulfide (TMS) based nanostructured electrode on nickel foam Mottakin M. Selvanathan V. Su'ait M.S. Razali S.A. Islam M.A. Ibrahim M.A. Muhammad G. Akhtaruzzaman M. 57195305487 57160057200 57223117728 57225826234 57361246600 55843508000 56605566900 57195441001 Capacitance Cobalt compounds Cobalt deposits Copper compounds Electric discharges Electrodes Energy storage Nanoflowers Nickel Process control Sulfur compounds Supercapacitor Biphasic design Diffusion-controlled process Metal sulfides Nickel foam Pseudocapacitive Scan rates Storage systems Supercapatterie Transitional metal sulphide Transitional metals Electrodeposition This study investigated the pseudocapacitive energy storage system of biphasic CuSx and CoSx electrodeposited on nickel foam (NF). XRD, FESEM, and EDX show the formation of nano-flower-shaped biphasic layer on NF. The biphasic electrode shows higher areal specific capacitance (Csp) than the single-layered NF/CuSx and NF/CoSx electrodes. The Csp of the NF/CuSx/CoSx drops by 42 % as the scan rate (?) rises from 5 mV s?1 to 20 mV s?1. Electrode polarization and reduced ion migration occurring with rapid scan rates are responsible for this decrement. Galvanostatic charge-discharge (GCD) analysis showed that Csp declined from 11.42 to 9.63 F cm?2, and the retained Csp was 84 % as the current density shifted from 4 to 8 mA cm?2. The energy density of 0.30 mWh.cm?2 and power density of 1.57 mW cm?2 imply significant energy storage capability of the electrode. The kinetic analysis indicates that 78 % of the capacitance is diffusion-controlled process in the NF/CuSx/CoSx electrode. The b-value of around 0.7 suggests that the pseudocapacitance mostly originates from diffusion-controlled processes. The poor cyclic stability of NF/CuSx/CoSx was demonstrated by only upholding 61 % of its original Csp after 500 cycles. However, the higher coulombic efficiency indicates that a greater proportion of the electrical charge is stored in the supercapacitor. The study explores the biphasic design of copper and cobalt sulphide-based electrodes as potential pseudocapacitive energy storage system applications such as supercapacitors and supercapatteries. ? 2023 Elsevier Ltd Final 2025-03-03T07:44:14Z 2025-03-03T07:44:14Z 2024 Article 10.1016/j.jpcs.2023.111795 2-s2.0-85178663463 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85178663463&doi=10.1016%2fj.jpcs.2023.111795&partnerID=40&md5=3ce7faddea516db37c65cac2c8327cec https://irepository.uniten.edu.my/handle/123456789/36729 186 111795 Elsevier Ltd Scopus
institution	Universiti Tenaga Nasional
building	UNITEN Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tenaga Nasional
content_source	UNITEN Institutional Repository
url_provider	http://dspace.uniten.edu.my/
topic	Capacitance Cobalt compounds Cobalt deposits Copper compounds Electric discharges Electrodes Energy storage Nanoflowers Nickel Process control Sulfur compounds Supercapacitor Biphasic design Diffusion-controlled process Metal sulfides Nickel foam Pseudocapacitive Scan rates Storage systems Supercapatterie Transitional metal sulphide Transitional metals Electrodeposition
spellingShingle	Capacitance Cobalt compounds Cobalt deposits Copper compounds Electric discharges Electrodes Energy storage Nanoflowers Nickel Process control Sulfur compounds Supercapacitor Biphasic design Diffusion-controlled process Metal sulfides Nickel foam Pseudocapacitive Scan rates Storage systems Supercapatterie Transitional metal sulphide Transitional metals Electrodeposition Mottakin M. Selvanathan V. Su'ait M.S. Razali S.A. Islam M.A. Ibrahim M.A. Muhammad G. Akhtaruzzaman M. Enhancing pseudocapacitive energy storage system performance with electrodeposited CuSx and CoSx biphasic transitional metal sulfide (TMS) based nanostructured electrode on nickel foam
description	This study investigated the pseudocapacitive energy storage system of biphasic CuSx and CoSx electrodeposited on nickel foam (NF). XRD, FESEM, and EDX show the formation of nano-flower-shaped biphasic layer on NF. The biphasic electrode shows higher areal specific capacitance (Csp) than the single-layered NF/CuSx and NF/CoSx electrodes. The Csp of the NF/CuSx/CoSx drops by 42 % as the scan rate (?) rises from 5 mV s?1 to 20 mV s?1. Electrode polarization and reduced ion migration occurring with rapid scan rates are responsible for this decrement. Galvanostatic charge-discharge (GCD) analysis showed that Csp declined from 11.42 to 9.63 F cm?2, and the retained Csp was 84 % as the current density shifted from 4 to 8 mA cm?2. The energy density of 0.30 mWh.cm?2 and power density of 1.57 mW cm?2 imply significant energy storage capability of the electrode. The kinetic analysis indicates that 78 % of the capacitance is diffusion-controlled process in the NF/CuSx/CoSx electrode. The b-value of around 0.7 suggests that the pseudocapacitance mostly originates from diffusion-controlled processes. The poor cyclic stability of NF/CuSx/CoSx was demonstrated by only upholding 61 % of its original Csp after 500 cycles. However, the higher coulombic efficiency indicates that a greater proportion of the electrical charge is stored in the supercapacitor. The study explores the biphasic design of copper and cobalt sulphide-based electrodes as potential pseudocapacitive energy storage system applications such as supercapacitors and supercapatteries. ? 2023 Elsevier Ltd
author2	57195305487
author_facet	57195305487 Mottakin M. Selvanathan V. Su'ait M.S. Razali S.A. Islam M.A. Ibrahim M.A. Muhammad G. Akhtaruzzaman M.
format	Article
author	Mottakin M. Selvanathan V. Su'ait M.S. Razali S.A. Islam M.A. Ibrahim M.A. Muhammad G. Akhtaruzzaman M.
author_sort	Mottakin M.
title	Enhancing pseudocapacitive energy storage system performance with electrodeposited CuSx and CoSx biphasic transitional metal sulfide (TMS) based nanostructured electrode on nickel foam
title_short	Enhancing pseudocapacitive energy storage system performance with electrodeposited CuSx and CoSx biphasic transitional metal sulfide (TMS) based nanostructured electrode on nickel foam
title_full	Enhancing pseudocapacitive energy storage system performance with electrodeposited CuSx and CoSx biphasic transitional metal sulfide (TMS) based nanostructured electrode on nickel foam
title_fullStr	Enhancing pseudocapacitive energy storage system performance with electrodeposited CuSx and CoSx biphasic transitional metal sulfide (TMS) based nanostructured electrode on nickel foam
title_full_unstemmed	Enhancing pseudocapacitive energy storage system performance with electrodeposited CuSx and CoSx biphasic transitional metal sulfide (TMS) based nanostructured electrode on nickel foam
title_sort	enhancing pseudocapacitive energy storage system performance with electrodeposited cusx and cosx biphasic transitional metal sulfide (tms) based nanostructured electrode on nickel foam
publisher	Elsevier Ltd
publishDate	2025
_version_	1825816030379769856
score	13.2442

Enhancing pseudocapacitive energy storage system performance with electrodeposited CuSx and CoSx biphasic transitional metal sulfide (TMS) based nanostructured electrode on nickel foam

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