Sulfide interlayered cobalt-based oxynitrides for efficient oxygen evolution reaction in neutral pH water and seawater

Ahmed Badreldin; Jehad Abed; Noor Hassan; Abdellatif El-Ghenymy; Wafa Suwaileh; Yiming Wubulikasimu; Zafar Khan Ghouri; Karim Youssef; Dharmesh Kumar; Khaled Elsaid; Edward H. Sargent; Ahmed Abdel-Wahab

doi:10.1016/j.apcatb.2023.122599

Sulfide interlayered cobalt-based oxynitrides for efficient oxygen evolution reaction in neutral pH water and seawater

Ahmed Badreldin, Jehad Abed, Noor Hassan, Abdellatif El-Ghenymy, Wafa Suwaileh, Yiming Wubulikasimu, Zafar Khan Ghouri, Karim Youssef, Dharmesh Kumar, Khaled Elsaid, Edward H. Sargent, Ahmed Abdel-Wahab

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Abstract

Sluggish kinetics of the anodic oxygen evolution reaction (OER) and minor upstream upsets in feed water quality remain bottlenecks for efficient water electrolysis, which is exacerbated under near-neutral pH environments due to H2O dissociation. In this work, we report the introduction of a NiSx interlayer in a Co-(NiFe) oxide/nitride catalyst on nickel foam substrate. Postmortem OER characterization in neutral pH synthetic seawater (SSW) shows that stable cationic [Co-(NiFe)]δ+ and anionic [O-N]δ– surface species coupled with the NiSx interlayer accelerate H2O dissociation, thereby enhancing activity and kinetics. The electrocatalysts exhibit stable performance at 100 mA cm−2 for 50 h in alkaline and neutral pH SSW with 350 and 425 mV of overpotential, respectively. The faradaic efficiency of the NiSx interlayer catalysts is enhanced by 10.3% and 8.5% achieving 94.5% and 87.4% under alkaline and neutral pH SSW, respectively, during chronoamperometry tests at a high applied voltage of 1.75 V (vs. RHE).

Original language	English
Article number	122599
Journal	Applied Catalysis B: Environmental
Volume	330
DOIs	https://doi.org/10.1016/j.apcatb.2023.122599
Publication status	Published - 1 Aug 2023

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Badreldin, A., Abed, J., Hassan, N., El-Ghenymy, A., Suwaileh, W., Wubulikasimu, Y., Ghouri, Z. K., Youssef, K., Kumar, D., Elsaid, K., Sargent, E. H., & Abdel-Wahab, A. (2023). Sulfide interlayered cobalt-based oxynitrides for efficient oxygen evolution reaction in neutral pH water and seawater. Applied Catalysis B: Environmental, 330, Article 122599. https://doi.org/10.1016/j.apcatb.2023.122599

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title = "Sulfide interlayered cobalt-based oxynitrides for efficient oxygen evolution reaction in neutral pH water and seawater",

abstract = "Sluggish kinetics of the anodic oxygen evolution reaction (OER) and minor upstream upsets in feed water quality remain bottlenecks for efficient water electrolysis, which is exacerbated under near-neutral pH environments due to H2O dissociation. In this work, we report the introduction of a NiSx interlayer in a Co-(NiFe) oxide/nitride catalyst on nickel foam substrate. Postmortem OER characterization in neutral pH synthetic seawater (SSW) shows that stable cationic [Co-(NiFe)]δ+ and anionic [O-N]δ– surface species coupled with the NiSx interlayer accelerate H2O dissociation, thereby enhancing activity and kinetics. The electrocatalysts exhibit stable performance at 100 mA cm−2 for 50 h in alkaline and neutral pH SSW with 350 and 425 mV of overpotential, respectively. The faradaic efficiency of the NiSx interlayer catalysts is enhanced by 10.3% and 8.5% achieving 94.5% and 87.4% under alkaline and neutral pH SSW, respectively, during chronoamperometry tests at a high applied voltage of 1.75 V (vs. RHE).",

author = "Ahmed Badreldin and Jehad Abed and Noor Hassan and Abdellatif El-Ghenymy and Wafa Suwaileh and Yiming Wubulikasimu and Ghouri, {Zafar Khan} and Karim Youssef and Dharmesh Kumar and Khaled Elsaid and Sargent, {Edward H.} and Ahmed Abdel-Wahab",

year = "2023",

month = aug,

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doi = "10.1016/j.apcatb.2023.122599",

language = "English",

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journal = "Applied Catalysis B: Environmental",

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Badreldin, A, Abed, J, Hassan, N, El-Ghenymy, A, Suwaileh, W, Wubulikasimu, Y, Ghouri, ZK, Youssef, K, Kumar, D, Elsaid, K, Sargent, EH & Abdel-Wahab, A 2023, 'Sulfide interlayered cobalt-based oxynitrides for efficient oxygen evolution reaction in neutral pH water and seawater', Applied Catalysis B: Environmental, vol. 330, 122599. https://doi.org/10.1016/j.apcatb.2023.122599

TY - JOUR

T1 - Sulfide interlayered cobalt-based oxynitrides for efficient oxygen evolution reaction in neutral pH water and seawater

AU - Badreldin, Ahmed

AU - Abed, Jehad

AU - Hassan, Noor

AU - El-Ghenymy, Abdellatif

AU - Suwaileh, Wafa

AU - Wubulikasimu, Yiming

AU - Ghouri, Zafar Khan

AU - Youssef, Karim

AU - Kumar, Dharmesh

AU - Elsaid, Khaled

AU - Sargent, Edward H.

AU - Abdel-Wahab, Ahmed

PY - 2023/8/1

Y1 - 2023/8/1

N2 - Sluggish kinetics of the anodic oxygen evolution reaction (OER) and minor upstream upsets in feed water quality remain bottlenecks for efficient water electrolysis, which is exacerbated under near-neutral pH environments due to H2O dissociation. In this work, we report the introduction of a NiSx interlayer in a Co-(NiFe) oxide/nitride catalyst on nickel foam substrate. Postmortem OER characterization in neutral pH synthetic seawater (SSW) shows that stable cationic [Co-(NiFe)]δ+ and anionic [O-N]δ– surface species coupled with the NiSx interlayer accelerate H2O dissociation, thereby enhancing activity and kinetics. The electrocatalysts exhibit stable performance at 100 mA cm−2 for 50 h in alkaline and neutral pH SSW with 350 and 425 mV of overpotential, respectively. The faradaic efficiency of the NiSx interlayer catalysts is enhanced by 10.3% and 8.5% achieving 94.5% and 87.4% under alkaline and neutral pH SSW, respectively, during chronoamperometry tests at a high applied voltage of 1.75 V (vs. RHE).

AB - Sluggish kinetics of the anodic oxygen evolution reaction (OER) and minor upstream upsets in feed water quality remain bottlenecks for efficient water electrolysis, which is exacerbated under near-neutral pH environments due to H2O dissociation. In this work, we report the introduction of a NiSx interlayer in a Co-(NiFe) oxide/nitride catalyst on nickel foam substrate. Postmortem OER characterization in neutral pH synthetic seawater (SSW) shows that stable cationic [Co-(NiFe)]δ+ and anionic [O-N]δ– surface species coupled with the NiSx interlayer accelerate H2O dissociation, thereby enhancing activity and kinetics. The electrocatalysts exhibit stable performance at 100 mA cm−2 for 50 h in alkaline and neutral pH SSW with 350 and 425 mV of overpotential, respectively. The faradaic efficiency of the NiSx interlayer catalysts is enhanced by 10.3% and 8.5% achieving 94.5% and 87.4% under alkaline and neutral pH SSW, respectively, during chronoamperometry tests at a high applied voltage of 1.75 V (vs. RHE).

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U2 - 10.1016/j.apcatb.2023.122599

DO - 10.1016/j.apcatb.2023.122599

M3 - Article

SN - 0926-3373

VL - 330

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

M1 - 122599

ER -

Sulfide interlayered cobalt-based oxynitrides for efficient oxygen evolution reaction in neutral pH water and seawater

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