Assessment of the FAA3‐50 Polymer Electrolyte for Anion Exchange Membrane Fuel Cells

Gatto, Irene; Patti, Assunta; Carbone, A.

doi:10.1002/celc.202201052

Cited by 6 publications

(4 citation statements)

References 46 publications

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“…Despite the simplicity of this ion-exchange step, significant performance differences have been reported with small variations of this procedure. For example, Gatto et al tested the performance of an AEMFC with Fumatech FAA-3 ionomer and membrane, by varying the ion-exchange time in alkaline solution (1 m KOH) from 1 to 24 h. [56] They found that in the first case, the fuel cell performed better, with a cell potential of 0.656 V@ 200 mA cm −2 , compared to 0.460 V for the second case. This could indicate that the membrane is subject to alkaline degradation, and prolonged exchange times weaken the membrane structure.…”

Section: A Note On Ion Exchange For Commercial Aeismentioning

confidence: 99%

Anion Exchange Ionomers: Design Considerations and Recent Advances ‐ An Electrochemical Perspective

Favero,

Stephens,

Titirci

2023

Advanced Materials

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Alkaline‐based electrochemical devices, such as anion exchange membrane fuel cells and electrolysers, are receiving increasing attention. However, while the catalysts and membrane have been methodically studied, the ionomer has been largely overlooked. In fact, most of the studies in alkaline electrolytes have been conducted using the commercial proton exchange ionomer Nafion. The ionomer does not only provide ionic conductivity, but it is essential for gas transport and water management, as well as controlling the mechanical stability and the morphology of the catalyst layer. Moreover, the ionomer has distinct requirement that differ from those of anion‐exchange membranes, such as a high gas permeability, and that depend on the specific electrode, such as water management. As a result, it is necessary to tailor the ionomer structure to the specific application, in isolation and as part of the catalyst layer. In this review, we will provide an overview of the current state of the art for anion exchange ionomers, summarizing their specific requirements and limitations in the context of AEM electrolysers and fuel cells.This article is protected by copyright. All rights reserved

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Section: A Note On Ion Exchange For Commercial Aeismentioning

confidence: 99%

Anion Exchange Ionomers: Design Considerations and Recent Advances ‐ An Electrochemical Perspective

Favero,

Stephens,

Titirci

2023

Advanced Materials

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“…The reason we put deionized water and catalyst in the first place is that if we pour the ethanol directly onto the platinum, it will flare up. Mixing was carried out in an ultrasonic bath [10,13,14].…”

Section: Preparation Of Inkmentioning

confidence: 99%

“…This highlights the significance of optimizing ion exchange durations for stronger Anion Exchange Membrane Water Electrolysis (AEMWE) membranes and enhanced MEA efficiency. [13]. Using the catalyst-coated membrane method with the FAA3-50 membrane enables operation at higher temperatures.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of bio-inspired flow field design for AEM and PEM water electrolyzer cells

Avcı,

Çögenli,

Çelik

et al. 2023

International Journal of Energy Studies

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Hydrogen is the strongest candidate to become the future fuel of the world to meet net-zero targets while it cannot be found in nature in pure form and the most major occurrence is in water or carbon-based forms. Therefore, external energy is needed to retrieve hydrogen in pure form where natural gas reforming is the most common method for over 90% of hydrogen production worldwide with carbon footprint followed by water electrolysis which is environmentally friendly. As clean methods PEM and AEL electrolysis are mature technologies while AEM takes increased attention with its unique dry cathode technology. This study examines how a nature-influenced (Bioinspired) and a serpentine flow channel design affects PEM electrolyzer and AEM electrolyzer cell functionality. The performance of the electrolyzers is assessed in terms of experimental polarization curves. It was decided to utilize Sustainion® XA-9 Alkaline Ionomer Powder as the ionomer solution and Fumasep FAS-50 as the membrane. The laminar flow analysis is performed using COMSOL Multiphysics. The efficiency of the PEM electrolyzer is 71% with the serpentine flow, while the efficiency is 73% with the biomimetic flow. The efficiency of the AEM water electrolyser is 25% using the same design. The low performance in AEM was interpreted as the inability to distribute the catalyst homogeneously on the membrane surface.

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“…Fumasep electrolytes consist of an aminated poly(phenylene oxide) backbone with quaternary ammonium groups [ 18 ] and find use in various applications, including hydrogen production by electrolysis of water [ 19 ], electrodialysis [ 20 ] and acid regeneration [ 21 ]. However, relatively few works have investigated the use of Fumasep membranes in AEMFC MEA [ 22 , 23 , 24 , 25 ] and the use of platinum-based cathodic and anodic catalysts when forming MEA.…”

Section: Introductionmentioning

confidence: 99%

Development of Hydrogen–Oxygen Fuel Cells Based on Anion-Exchange Electrolytes and Catalysts with Reduced Platinum Content

et al. 2023

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Studies have been carried out to optimize the composition, formation technique and test conditions of membrane electrode assemblies (MEA) of hydrogen–oxygen anion-exchange membranes fuel cells (AEMFC), based on Fumatech anion-exchange membranes. A non-platinum catalytic system based on nitrogen-doped CNT (CNTN) was used in the cathode. PtMo/CNTN catalysts with a reduced content of platinum (10–12 wt.% Pt) were compared with 10 and 60 wt.% Pt/CNTN at the anode. According to the results of studies under model conditions, it was found that the PtMo/CNTN catalyst is significantly superior to the 10 and 60 wt.% Pt/CNTN catalyst in terms of activity in the hydrogen oxidation reaction based on the mass of platinum. The addition of the Fumion ionomer results in minor changes in the electrochemically active surface area and activity in the hydrogen oxidation reaction for each of the catalysts. In this case, the introduction of ionomer–Fumion leads to a partial blocking of the outer surface and the micropore surface, which is most pronounced in the case of the 60Pt/CNTN catalyst. This effect can cause a decrease in the characteristics of MEA AEMFC upon passing from 10PtMo/CNTN to 60Pt/CNTN in the anode active layer. The maximum power density of the optimized MEA based on 10PtMo/CNTN was 62 mW cm−2, which exceeds the literature data obtained under similar test conditions for MEA based on platinum cathode and anode catalysts and Fumatech membranes (41 mW cm−2). A new result of this work is the study of the effect of the ionomer (Fumion) on the characteristics of catalysts. It is shown that the synthesized 10PtMo/CNTN catalyst retains high activity in the presence of an ionomer under model conditions and in the MEA based on it.

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Assessment of the FAA3‐50 Polymer Electrolyte for Anion Exchange Membrane Fuel Cells

Cited by 6 publications

References 46 publications

Anion Exchange Ionomers: Design Considerations and Recent Advances ‐ An Electrochemical Perspective

Anion Exchange Ionomers: Design Considerations and Recent Advances ‐ An Electrochemical Perspective

Experimental investigation of bio-inspired flow field design for AEM and PEM water electrolyzer cells

Development of Hydrogen–Oxygen Fuel Cells Based on Anion-Exchange Electrolytes and Catalysts with Reduced Platinum Content

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