Investigation of oxygen evolution reaction with Ni foam and stainless-steel mesh electrodes in alkaline seawater electrolysis

Xiang Lyu; Jianlin Li; Charl J. Jafta; Yaocai Bai; Camila P. Canales; Fridrik Magnus; Árni S. Ingason; Alexey Serov

doi:10.1016/j.jece.2022.108486

Investigation of oxygen evolution reaction with Ni foam and stainless-steel mesh electrodes in alkaline seawater electrolysis

Xiang Lyu, Jianlin Li, Charl J. Jafta, Yaocai Bai, Camila P. Canales, Fridrik Magnus, Árni S. Ingason, Alexey Serov

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Alkaline seawater electrolysis is a promising method for hydrogen production; however, little progress has been made in investigating the substrates for oxygen evolution reaction (OER) electrocatalysts. Ni foam and stainless-steel mesh (SS mesh) were investigated systematically for OER in alkaline seawater electrolysis in this work. The overpotentials and Tafel slopes with SS meshes are smaller than Ni foams, and it also exhibits excellent stability. Interestingly, the performance of the SS mesh even outperforms various non-noble metal electrocatalysts and is comparable to commercial RuO2 and IrO2. The corrosion conditions of Ni foam and SS mesh electrodes were studied and revealed. Furthermore, the electrochemically active surface area (ECSA) of Ni foam is 12 times higher than SS mesh in the same geometric area, indicating the electrochemical activity of SS mesh is much superior to Ni foam. This work expands on promising substrates for alkaline seawater electrolysis, with cost and performance advantages.

Original language	English
Article number	108486
Journal	Journal of Environmental Chemical Engineering
Volume	10
Issue number	5
DOIs	https://doi.org/10.1016/j.jece.2022.108486
State	Published - Oct 2022

Funding

This research at Oak Ridge National Laboratory (ORNL), managed by UT Battelle, LLC, for the U.S. Department of Energy (DOE) under contract DE-AC05–00OR22725DE‐AC05‐00OR22725 . Additionally works was sponsored by the US DOE H2NEW consortium.

Funders	Funder number
U.S. Department of Energy	DE-AC05–00OR22725DE‐AC05‐00OR22725
Oak Ridge National Laboratory
UT-Battelle

Keywords

Alkaline seawater electrolysis
Ni foam
Oxygen evolution reaction
Stainless-steel mesh

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10.1016/j.jece.2022.108486

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title = "Investigation of oxygen evolution reaction with Ni foam and stainless-steel mesh electrodes in alkaline seawater electrolysis",

abstract = "Alkaline seawater electrolysis is a promising method for hydrogen production; however, little progress has been made in investigating the substrates for oxygen evolution reaction (OER) electrocatalysts. Ni foam and stainless-steel mesh (SS mesh) were investigated systematically for OER in alkaline seawater electrolysis in this work. The overpotentials and Tafel slopes with SS meshes are smaller than Ni foams, and it also exhibits excellent stability. Interestingly, the performance of the SS mesh even outperforms various non-noble metal electrocatalysts and is comparable to commercial RuO2 and IrO2. The corrosion conditions of Ni foam and SS mesh electrodes were studied and revealed. Furthermore, the electrochemically active surface area (ECSA) of Ni foam is 12 times higher than SS mesh in the same geometric area, indicating the electrochemical activity of SS mesh is much superior to Ni foam. This work expands on promising substrates for alkaline seawater electrolysis, with cost and performance advantages.",

keywords = "Alkaline seawater electrolysis, Ni foam, Oxygen evolution reaction, Stainless-steel mesh",

author = "Xiang Lyu and Jianlin Li and Jafta, {Charl J.} and Yaocai Bai and Canales, {Camila P.} and Fridrik Magnus and Ingason, {{\'A}rni S.} and Alexey Serov",

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year = "2022",

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doi = "10.1016/j.jece.2022.108486",

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T1 - Investigation of oxygen evolution reaction with Ni foam and stainless-steel mesh electrodes in alkaline seawater electrolysis

AU - Lyu, Xiang

AU - Li, Jianlin

AU - Jafta, Charl J.

AU - Bai, Yaocai

AU - Canales, Camila P.

AU - Magnus, Fridrik

AU - Ingason, Árni S.

AU - Serov, Alexey

PY - 2022/10

Y1 - 2022/10

N2 - Alkaline seawater electrolysis is a promising method for hydrogen production; however, little progress has been made in investigating the substrates for oxygen evolution reaction (OER) electrocatalysts. Ni foam and stainless-steel mesh (SS mesh) were investigated systematically for OER in alkaline seawater electrolysis in this work. The overpotentials and Tafel slopes with SS meshes are smaller than Ni foams, and it also exhibits excellent stability. Interestingly, the performance of the SS mesh even outperforms various non-noble metal electrocatalysts and is comparable to commercial RuO2 and IrO2. The corrosion conditions of Ni foam and SS mesh electrodes were studied and revealed. Furthermore, the electrochemically active surface area (ECSA) of Ni foam is 12 times higher than SS mesh in the same geometric area, indicating the electrochemical activity of SS mesh is much superior to Ni foam. This work expands on promising substrates for alkaline seawater electrolysis, with cost and performance advantages.

AB - Alkaline seawater electrolysis is a promising method for hydrogen production; however, little progress has been made in investigating the substrates for oxygen evolution reaction (OER) electrocatalysts. Ni foam and stainless-steel mesh (SS mesh) were investigated systematically for OER in alkaline seawater electrolysis in this work. The overpotentials and Tafel slopes with SS meshes are smaller than Ni foams, and it also exhibits excellent stability. Interestingly, the performance of the SS mesh even outperforms various non-noble metal electrocatalysts and is comparable to commercial RuO2 and IrO2. The corrosion conditions of Ni foam and SS mesh electrodes were studied and revealed. Furthermore, the electrochemically active surface area (ECSA) of Ni foam is 12 times higher than SS mesh in the same geometric area, indicating the electrochemical activity of SS mesh is much superior to Ni foam. This work expands on promising substrates for alkaline seawater electrolysis, with cost and performance advantages.

KW - Alkaline seawater electrolysis

KW - Ni foam

KW - Oxygen evolution reaction

KW - Stainless-steel mesh

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DO - 10.1016/j.jece.2022.108486

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JO - Journal of Environmental Chemical Engineering

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ER -

Investigation of oxygen evolution reaction with Ni foam and stainless-steel mesh electrodes in alkaline seawater electrolysis

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