Effect of anion exchange ionomer content on electrode performance in AEM water electrolysis

Faid, Alaa Y.; Xie, Lin; Barnett, Alejandro Oyarce; Seland, Frode; Kirk, Donald W.; Sunde, Svein

doi:10.1016/j.ijhydene.2020.07.202

Cited by 87 publications

(76 citation statements)

References 39 publications

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“…Future work may focus on ink stabilization and the development of ionomers as dedicated binders for homogenous and stable catalyst. The differences between the results shown in this study and other recent reports, 19,25 however, also highlights the signicant variations encountered when using different (experimental or commercially available) ionomers, membranes, fabrication methods and testing procedures.…”

Section: Discussioncontrasting

confidence: 91%

“…In contrast, recent reports show improved performance for cathode catalyst layers containing 10 wt% ionomer compared to higher ionomer contents. 19,25 This is in agreement with a slightly better performance for the 10 wt% ionomer CCM observed in the present work, but the effect of cathode ionomer content variation is less signicant here, likely due to the CCM architecture and different materials employed.…”

Section: Electrochemical Performancesupporting

confidence: 91%

“…), and on the polymeric binder in the catalyst layers (e.g. PTFE, 17 Naon 18 or anion-exchange polymer 16,19 ). Ito et al concluded that CCMs provided the best mass transport properties, but the catalyst layer stability on the anode side was insufficient and thus a CCS approach, utilizing PTFE as binder, was more successful.…”

mentioning

confidence: 99%

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The effect of ionomer content in catalyst layers in anion-exchange membrane water electrolyzers prepared with reinforced membranes (Aemion+™)

et al. 2021

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Section: Discussioncontrasting

confidence: 91%

Section: Electrochemical Performancesupporting

confidence: 91%

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The effect of ionomer content in catalyst layers in anion-exchange membrane water electrolyzers prepared with reinforced membranes (Aemion+™)

et al. 2021

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“…GDL supports made of carbon paper or cloths [30,47,48], Ti papers [41,49], stainless steel (SS) felt [37,50,51] or Ni foam [52,53] have been used for the anode. Ni or Ti metals show a high thermodynamic stability when acting as anode GDL in an alkaline medium.…”

Section: Gas Diffusion Layersmentioning

confidence: 99%

Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

et al. 2021

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Water electrolysis to obtain hydrogen in combination with intermittent renewable energy resources is an emerging sustainable alternative to fossil fuels. Among the available electrolyzer technologies, anion exchange membrane water electrolysis (AEMWE) has been paid much attention because of its advantageous behavior compared to other more traditional approaches such as solid oxide electrolyzer cells, and alkaline or proton exchange membrane water electrolyzers. Recently, very promising results have been obtained in the AEMWE technology. This review paper is focused on recent advances in membrane electrode assembly components, paying particular attention to the preparation methods for catalyst coated on gas diffusion layers, which has not been previously reported in the literature for this type of electrolyzers. The most successful methodologies utilized for the preparation of catalysts, including co-precipitation, electrodeposition, sol–gel, hydrothermal, chemical vapor deposition, atomic layer deposition, ion beam sputtering, and magnetron sputtering deposition techniques, have been detailed. Besides a description of these procedures, in this review, we also present a critical appraisal of the efficiency of the water electrolysis carried out with cells fitted with electrodes prepared with these procedures. Based on this analysis, a critical comparison of cell performance is carried out, and future prospects and expected developments of the AEMWE are discussed.

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“…In general, an AEM electrolyzer is a type of electrolysis system that uses an alkaline solid polymeric membrane as an AEM membrane. This component allows the electrochemical reaction to complete water splitting and the production of hydrogen 52 . An AEM membrane is located in the middle of the AEM electrolyzer cell, as illustrated in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

A review of alkaline solid polymer membrane in the application of AEM electrolyzer: Materials and characterization

Zakaria

Kamarudin

2021

Int J Energy Res

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Summary Electrochemical water splitting is one of the practical systems for green hydrogen production. This hydrogen processing is sustainable by the use of a water electrolysis cell known as an electrolyzer. In recent decades, the alkaline electrolyzer and the proton exchange membrane electrolyzer have entered the advanced commercial level for the hydrogen processing industry. Unfortunately, both techniques have many crucial issues, such as the handling of hydrogen, large structure, and expensive materials needed during the construction of the cell. Anion exchange membrane (AEM) electrolyzers have been recommended to address the worst of previous electrolyzer types due to the ability to use non‐platinum and non‐Nafion membrane materials, high hydrogen storage density, and the ability to build compact micro‐cells on a large cell scale. A solid polymer alkaline membrane is a key component that influences the efficiency of the AEM electrolyzer, which reacts as an anion exchange membrane (AEM membrane). AEM membrane serves as an anode and cathode separator, ion transfer pathway, and electron flow barriers. This review paper explores polymeric materials and the characterization of an alkaline solid polymeric membrane used in an AEM electrolyzer. Several polymeric membranes that have been investigated by researchers for this application have been discussed. Critical characterizations such as ion exchange capability, ionic conductivity, chemical and mechanical stability, and cell performance durability are comprehensively addressed to guide future research and development in an alkaline solid polymeric membrane for application in an AEM electrolyzer. Highlights An overview of materials and characterization assessment of alkaline solid polymeric membrane in AEM electrolyzer is discussed. The progress of polymeric materials for alkaline solid polymeric membrane modification in the AEM electrolyzer is presented. Critical characterization of the alkaline solid polymeric membrane is described, including the ion exchange capacity, ionic conductivity, chemical and mechanical stability, and durability of cell performance.

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Effect of anion exchange ionomer content on electrode performance in AEM water electrolysis

Cited by 87 publications

References 39 publications

The effect of ionomer content in catalyst layers in anion-exchange membrane water electrolyzers prepared with reinforced membranes (Aemion+™)

The effect of ionomer content in catalyst layers in anion-exchange membrane water electrolyzers prepared with reinforced membranes (Aemion+™)

Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

A review of alkaline solid polymer membrane in the application of AEM electrolyzer: Materials and characterization

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