Pt utilization in proton exchange membrane fuel cells: structure impacting factors and mechanistic insights

M Tang, S Zhang, S Chen - Chemical Society Reviews, 2022 - pubs.rsc.org
It is essential to realize an expected low usage of platinum (Pt) in proton exchange
membrane fuel cells (PEMFCs) for the large-scale market penetration of PEMFC-powered …

Platinum-group-metal catalysts for proton exchange membrane fuel cells: From catalyst design to electrode structure optimization

J Hou, M Yang, C Ke, G Wei, C Priest, Z Qiao, G Wu… - EnergyChem, 2020 - Elsevier
Proton exchange membrane fuel cells (PEMFCs) have attracted significant attention in the
past three decades as a very promising power source for transportation applications. After …

Structural and transport properties of ultrathin perfluorosulfonic acid ionomer film in proton exchange membrane fuel cell catalyst layer: A review

X Yan, Z Xu, S Yuan, A Han, Y Shen, X Cheng… - Journal of Power …, 2022 - Elsevier
Although the properties of perfluorosulfonic acid (PFSA) membranes (10–100 s μm thick) in
proton exchange membrane fuel cells (PEMFCs) have been well studied for decades, the …

Perspectives on challenges and achievements in local oxygen transport of low Pt proton exchange membrane fuel cells

X Cheng, S Shen, G Wei, C Wang… - Advanced Materials …, 2022 - Wiley Online Library
The key to address the cost issue of polymer electrolyte membrane fuel cells (PEMFCs) lies
on reducing Pt amount employed in cathode catalyst layers (CCLs). In past decades …

PEFC catalyst layer: Recent advances in materials, microstructural characterization, and modeling

K Karan - Current Opinion in Electrochemistry, 2017 - Elsevier
The cost, performance, and durability of polymer electrolyte fuel cells (PEFCs) are strongly
linked to its catalyst layer. In this review, the state of the art of the three Ms—Materials …

Review of characterization and modeling of polymer electrolyte fuel cell catalyst layer: The blessing and curse of ionomer

J Huang, Z Li, J Zhang - Frontiers in Energy, 2017 - Springer
Ionomer impregnation represents a milestone in the evolution of polymer electrolyte fuel cell
(PEFC) catalyst layers. Ionomer acts as the binder, facilitates proton transport, and thereby …

Structure and conductivity of ionomer in PEM fuel cell catalyst layers: a model-based analysis

W Olbrich, T Kadyk, U Sauter, M Eikerling, J Gostick - Scientific reports, 2023 - nature.com
Efforts in design and optimization of catalyst layers for polymer electrolyte fuel cells hinge on
mathematical models that link electrode composition and microstructure with effective …

Proton-conductivity enhancement in polymer thin films

Y Nagao - Langmuir, 2017 - ACS Publications
Highly proton conductive polymers have long attracted the attention of researchers for use in
energy conversion, sensors, catalysts, and other applications. From the viewpoint of the …

Equation Elucidating the Catalyst-Layer Proton Conductivity in a Polymer Electrolyte Fuel Cell Based on the Ionomer Distribution Determined Using Small-Angle …

M Harada, H Kadoura, S Takata, H Iwase… - … Applied Materials & …, 2023 - ACS Publications
The performance of a polymer electrolyte fuel cell can be enhanced by improving the proton
conductivity of the catalyst layer, where the oxygen reduction reaction generates …

Characterizing PEM fuel cell catalyst layer properties from high resolution three-dimensional digital images, Part II: Oxygen effective diffusion and proton effective …

M Ahmed-Maloum, J Pauchet, M Quintard… - International Journal of …, 2024 - Elsevier
The oxygen effective diffusion and proton effective conductivity tensors of a cathode catalyst
layer (CCL) are computed using a two-scale approach on CCL microstructure three …