Tipping water balance and the Pt loading effect in polymer electrolyte fuel cells: a model-based analysis

Muzaffar, Tasleem; Kadyk, Thomas; Eikerling, Michael

doi:10.1039/c8se00026c

Cited by 48 publications

(45 citation statements)

References 54 publications

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“…The electrons are transported to the CL via electrical contact between support particles, while the protons are typically transported via the PFSA ionomer or localized liquid water, produced by high humidity operating conditions or as the byproduct of the ORR reaction. [ 50–52 ] The combination of these three reactants at what is known as the triple phase boundary (TPB) is required for the reaction to occur, as shown in Figure 2b. If a catalyst particle is not connected to any one of these three then the catalyst will not be utilized in the reaction.…”

Section: Introductionmentioning

confidence: 99%

Engineering Catalyst Layers for Next‐Generation Polymer Electrolyte Fuel Cells: A Review of Design, Materials, and Methods

Suter

Smith

Hack

et al. 2021

Advanced Energy Materials

134

115

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Polymer electrolyte fuel cells (PEFCs) are a promising replacement for the fossil fuel–dependent automotive and energy sectors. They have become increasingly commercialized in the last decade; however, significant limitations on durability and performance limit their commercial uptake. Catalyst layer (CL) design is commonly reported to impact device power density and durability; although, a consensus is rarely reached due to differences in testing conditions, experimental design, and types of data reported. This is further exacerbated by aspects of CL design such as catalyst support, proton conduction, catalyst, fabrication, and morphology, being significantly interdependent; hence, a wider appreciation is required in order to optimize performance, improve durability, and reduce costs. Here, the cutting‐edge research within the field of PEFCs is reviewed, investigating the effect of different manufacturing techniques, electrolyte distribution, support materials, surface chemistries, and total porosity on power density and durability. These are critically appraised from an applied perspective to inform the most relevant and promising pathways to make and test commercially viable cells. This holistic view of the competing aspects of CL design and preparation will facilitate the development of optimized CLs, especially the incorporation of novel catalyst support materials.

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Section: Introductionmentioning

confidence: 99%

Engineering Catalyst Layers for Next‐Generation Polymer Electrolyte Fuel Cells: A Review of Design, Materials, and Methods

Suter

Smith

Hack

et al. 2021

Advanced Energy Materials

134

115

View full text Add to dashboard Cite

show abstract

“…More discussions of the problem and references can be found in recent reviews. 7,8 An alternative explanation of poor performance of low-Pt cathodes has been suggested by Muzaffar et al 9 They processed numerous experimental polarization curves and showed that the thin, low-Pt electrodes are prone to ooding. Essentially, the effect is due to much lower surface of liquid water in a thin electrode, which strongly reduces its water evaporation ability.…”

Section: Introductionmentioning

confidence: 99%

Nafion film transport properties in a low-Pt PEM fuel cell: impedance spectroscopy study

Reshetenko

Kulikovsky

2019

RSC Adv.

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“…The approach was extended to analytical solutions which cover a broader operating range, and it was shown to enable monitoring degradation parameters [57]. Lately, water effects were also addressed [58]. One-dimensional GDE models for metal-air batteries usually consider local concentration and potential gradients over the electrode thickness [34, 45, 59 -61].…”

Section: One-dimensional Gde Modelsmentioning

confidence: 99%

“…The approach was extended to analytical solutions which cover a broader operating range, and it was shown to enable monitoring degradation parameters . Lately, water effects were also addressed .…”

Section: Gas Diffusion Electrode Models From 0d To 3dmentioning

confidence: 99%

Modeling Oxygen Gas Diffusion Electrodes for Various Technical Applications

Kubannek

Turek

Krewer

2019

Chemie Ingenieur Technik

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In gas diffusion electrodes (GDEs), electrocatalysts are in contact with gas and electrolyte ensuring a large active threephase boundary. GDEs are used for important technical applications in energy transformation and chemical synthesis. This review gives an introduction into the vast range of existing models for GDEs and their specific purpose, with an emphasis on oxygen reduction electrodes. After introducing the processes occurring in GDEs, modeling approaches are described according to their dimensionality (from 0D to 3D to multiscale) and perspectives for future research are discussed.

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Tipping water balance and the Pt loading effect in polymer electrolyte fuel cells: a model-based analysis

Abstract: Tipping water balance drastically affecting the performance of electrode layers in polymer electrolyte fuel cells with low Pt loading.

Cited by 48 publications

References 54 publications

Engineering Catalyst Layers for Next‐Generation Polymer Electrolyte Fuel Cells: A Review of Design, Materials, and Methods

Engineering Catalyst Layers for Next‐Generation Polymer Electrolyte Fuel Cells: A Review of Design, Materials, and Methods

Nafion film transport properties in a low-Pt PEM fuel cell: impedance spectroscopy study

Modeling Oxygen Gas Diffusion Electrodes for Various Technical Applications

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