Self-adhesive ionomers for alkaline electrolysis: Optimized oxygen evolution electrode

Park, Habin; Shah, Parin N.; Tee, Hui Min; Kohl, Paul A.

doi:10.1016/j.jpowsour.2023.232811

Cited by 7 publications

(17 citation statements)

References 23 publications

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“…AEM alkaline electrolysis was performed, as previously described. 15,19 Oxygen evolution reaction (OER) anode and hydrogen evolution reaction (HER) cathode were prepared using the solvent-cast method with the same formulation in our previous studies. 15,19 OER and HER electrodes used 50 : 30 : 20 and 20 : 60 : 20 ionomers (butyl norbornene (BuNB):bromobutyl norbornene (BrNB):norbornene propionic acid ethyl ester (NBPEE)), respectively.…”

Section: Materials Advances Papermentioning

confidence: 99%

“…0.1 M NaOH electrolyte was fed to the OER anode. 15,19 The HER cathode was operated dry. The electrolysis was performed at 60 1C.…”

Section: Materials Advances Papermentioning

confidence: 99%

“…The electrodes were fabricated as previously described. 15,19 Fig. 7a shows an electrolysis voltage for both the in situ aminated GT75 membrane and the commercial GT75-5 membrane measured at 1 A cm À2 for 100 h. The applied voltage of in situ aminated GT75 AEM was 1.769 V after 100 h which corresponds to 47.4 kW h kg À1 of energy input and 83.1% HHV energy efficiency without any ohmic loss correction.…”

Section: Materials Advances Papermentioning

confidence: 99%

“…An all sp 3 hydrocarbon backbone produced stable polymers that were not susceptible to rapid degradation in an alkaline electrolyte. 15 Placing the ionic headgroups at the end of long-chain tethers was an effective strategy to reduce the head-group degradation during operation. 16 Fuel cells made from these membranes achieved a peak power density of 3.4 W cm −2 .…”

Section: Introductionmentioning

confidence: 99%

“…OER anode used 0.5 mg cm À2 of NiFe 2 O 4 , 0.11 mg cm À2 of 50 : 30 : 20 ionomer, and 0.6 mg cm À2 of adhesive, coated on Ni PTL. HER cathode used 1.2 mg cm À2 of Pt 3 Ni, 0.6 mg cm À2 of 20 : 60 : 20 ionomer, and 0.1 mg cm À2 of adhesive, coated on nonwet proofed carbon paper PTL 15,19.…”

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In situ amination of anion conducting solid polymer electrolyte membranes

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Section: Materials Advances Papermentioning

confidence: 99%

“…0.1 M NaOH electrolyte was fed to the OER anode. 15,19 The HER cathode was operated dry. The electrolysis was performed at 60 1C.…”

Section: Materials Advances Papermentioning

confidence: 99%

Section: Materials Advances Papermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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In situ amination of anion conducting solid polymer electrolyte membranes

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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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Hydrocarbon Ionomeric Binders for Fuel Cells and Electrolyzers

Kim

2023

Advanced Science

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Ionomeric binders in catalyst layers, abbreviated as ionomers, play an essential role in the performance of polymer–electrolyte membrane fuel cells and electrolyzers. Due to environmental issues associated with perfluoroalkyl substances, alternative hydrocarbon ionomers have drawn substantial attention over the past few years. This review surveys literature to discuss ionomer requirements for the electrodes of fuel cells and electrolyzers, highlighting design principles of hydrocarbon ionomers to guide the development of advanced hydrocarbon ionomers.

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Self-adhesive ionomers for alkaline electrolysis: Optimized oxygen evolution electrode

Cited by 7 publications

References 23 publications

In situ amination of anion conducting solid polymer electrolyte membranes

In situ amination of anion conducting solid polymer electrolyte membranes

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

Hydrocarbon Ionomeric Binders for Fuel Cells and Electrolyzers

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