Facile electrodeposition of biphasic CuSx/CoSx nanostructures as bifunctional electrocatalysts for seawater splitting

Mottakin, M.; Selvanathan, Vidhya; Razali, Syaza Amira; Islam, Md. Ariful; AlMohamadi, Hamad; Alharthi, Nabeel H.; Yoshimura, Satoru; Akhtaruzzaman, Md.

doi:10.1016/j.electacta.2023.142861

Cited by 10 publications

(2 citation statements)

References 57 publications

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“…5c, under the same current density, NiS 2 @Co 4 S 3 @FeS also has the smallest overpotential compared with newly reported catalysts, and its catalytic performance is far superior. 49–57 We analyzed and fitted the LSV curve to obtain the Tafel slope, which can help us to further understand the reaction kinetics of the OER catalyst. The Tafel slope is closely related to the electron transport rate, and the lower the Tafel slope value is, the better the activity of the electrode is.…”

Section: Resultsmentioning

confidence: 99%

“…5c, under the same current density, NiS 2 @Co 4 S 3 @FeS also has the smallest overpotential compared with newly reported catalysts, and its catalytic performance is far superior. [49][50][51][52][53][54][55][56][57] We analyzed and fitted the LSV curve to obtain the Tafel slope, which can help us to further understand the reaction kinetics…”

Section: Dalton Transactions Papermentioning

confidence: 99%

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Design of polymetallic sulfide NiS₂@Co₄S₃@FeS as bifunctional catalyst for high efficiency seawater splitting

Chen,

Wu,

et al. 2023

Dalton Trans.

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Section: Resultsmentioning

confidence: 99%

“…5c, under the same current density, NiS 2 @Co 4 S 3 @FeS also has the smallest overpotential compared with newly reported catalysts, and its catalytic performance is far superior. [49][50][51][52][53][54][55][56][57] We analyzed and fitted the LSV curve to obtain the Tafel slope, which can help us to further understand the reaction kinetics…”

Section: Dalton Transactions Papermentioning

confidence: 99%

Design of polymetallic sulfide NiS₂@Co₄S₃@FeS as bifunctional catalyst for high efficiency seawater splitting

Chen,

Wu,

et al. 2023

Dalton Trans.

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Synergistic Effect of Allium‐like Ni₉S₈ & Cu₇S₄ Electrodeposited on Nickel Foam for Enhanced Water Splitting Activity

Mottakin

Selvanathan²,

Islam

et al. 2023

Chemistry An Asian Journal

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This study explores a water‐splitting activity using biphasic electrodeposited electrode on nickel foam (NF). The Ni9S8/Cu7S4/NF electrode with sulfur vacancy defects exhibits superior OER (oxygen evolution reaction) and HER (hydrogen evolution reaction) performance with reduced overpotential and a steeper Tafel slope. Ni9S8/Cu7S4/NF displays the ultra‐low overpotential value of 212 mV for OER and 109 mV for HER at the current density of 10 mA cm−2. The Tafel slope of 25.4 mV dec−1 for OER and 108 mV dec−1 for OER was found from that electrode. The maximum electrochemical surface area (ECSA), lowest series resistance and lowest charge transfer resistance are found in the sample with sulfur vacancy defects, showing increased electrical conductivity and quick charge transfer kinetics. Remarkably, the Ni9S8/Cu7S4/NF electrode demonstrated exceptional stability and was stable for 80 hours in pure water splitting and 20 hours in seawater splitting. The synergistic effect of using bimetallic (Cu & Ni) sulfide and enhanced electrical conductivity of the electrode are caused by sulfur vacancy defects resulting in improved water splitting performance.

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Sulfurization-induced lattice disordering in high-entropy catalyst for promoted bifunctional electro-oxidation behavior

Chen,

Wang,

Liu

et al. 2024

Chemical Engineering Journal

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Facile electrodeposition of biphasic CuSx/CoSx nanostructures as bifunctional electrocatalysts for seawater splitting

Cited by 10 publications

References 57 publications

Design of polymetallic sulfide NiS₂@Co₄S₃@FeS as bifunctional catalyst for high efficiency seawater splitting

Design of polymetallic sulfide NiS₂@Co₄S₃@FeS as bifunctional catalyst for high efficiency seawater splitting

Synergistic Effect of Allium‐like Ni₉S₈ & Cu₇S₄ Electrodeposited on Nickel Foam for Enhanced Water Splitting Activity

Sulfurization-induced lattice disordering in high-entropy catalyst for promoted bifunctional electro-oxidation behavior

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Facile electrodeposition of biphasic CuSx/CoSx nanostructures as bifunctional electrocatalysts for seawater splitting

Cited by 10 publications

References 57 publications

Design of polymetallic sulfide NiS2@Co4S3@FeS as bifunctional catalyst for high efficiency seawater splitting

Design of polymetallic sulfide NiS2@Co4S3@FeS as bifunctional catalyst for high efficiency seawater splitting

Synergistic Effect of Allium‐like Ni9S8 & Cu7S4 Electrodeposited on Nickel Foam for Enhanced Water Splitting Activity

Sulfurization-induced lattice disordering in high-entropy catalyst for promoted bifunctional electro-oxidation behavior

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Product

Resources

About

Design of polymetallic sulfide NiS₂@Co₄S₃@FeS as bifunctional catalyst for high efficiency seawater splitting

Design of polymetallic sulfide NiS₂@Co₄S₃@FeS as bifunctional catalyst for high efficiency seawater splitting

Synergistic Effect of Allium‐like Ni₉S₈ & Cu₇S₄ Electrodeposited on Nickel Foam for Enhanced Water Splitting Activity