scholarly journals Multi-Scale First-Principles Modeling of Three-Phase System of Polymer Electrolyte Membrane Fuel Cell

2013 ◽  
Vol 50 (2) ◽  
pp. 155-160 ◽  
Author(s):  
G. F. Brunello ◽  
J. I. Choi ◽  
D. A. Harvey ◽  
S. S. Jang
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
First Principles ◽  
Polymer Electrolyte Membrane ◽  
Phase System ◽  
Electrolyte Membrane ◽  
Multi Scale ◽  
Three Phase

Nano-scale control of the ionomer distribution by molecular masking of the Pt surface in PEMFCs

2020 ◽  
Vol 8 (26) ◽  
pp. 13004-13013 ◽  
Author(s):  
Gisu Doo ◽  
Seongmin Yuk ◽  
Ji Hye Lee ◽  
Sungyu Choi ◽  
Dong-Hyun Lee ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Catalyst Layer ◽  
Pt Catalyst ◽  
Phase Boundaries ◽  
Electrolyte Membrane ◽  
Three Phase ◽  
New Strategy ◽  
Scale Control

A new strategy for controlling the ionomer distribution in the catalyst layer of a polymer electrolyte membrane fuel cell, the molecular masking of Pt catalyst particles, is presented to achieve efficient three phase boundaries for the ORR.

Interactions of Pt nanoparticles with molecular components in polymer electrolyte membrane fuel cells: multi-scale modeling approach

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 69670-69676 ◽  
Author(s):  
Giuseppe F. Brunello ◽  
Ji Hye Lee ◽  
Seung Geol Lee ◽  
Ji Il Choi ◽  
David Harvey ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Pt Nanoparticles ◽  
Electrolyte Membrane ◽  
Multi Scale ◽  
Scale Modeling ◽  
Three Phase ◽  
Multi Scale Modeling ◽  
Molecular Components

Three phase model consists of Pt nanoparticles, Nafion, and graphite with oxygen, water, and hydronium.

scholarly journals Review of the Durability of Polymer Electrolyte Membrane Fuel Cell in Long-Term Operation: Main Influencing Parameters and Testing Protocols

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 4048
Author(s):  
Huu Linh Nguyen ◽  
Jeasu Han ◽  
Xuan Linh Nguyen ◽  
Sangseok Yu ◽  
Young-Mo Goo ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Failure Modes ◽  
Polymer Electrolyte Membrane ◽  
Durability Test ◽  
Term Operation ◽  
Electrolyte Membrane ◽  
Transportation Applications ◽  
Testing Protocols

Durability is the most pressing issue preventing the efficient commercialization of polymer electrolyte membrane fuel cell (PEMFC) stationary and transportation applications. A big barrier to overcoming the durability limitations is gaining a better understanding of failure modes for user profiles. In addition, durability test protocols for determining the lifetime of PEMFCs are important factors in the development of the technology. These methods are designed to gather enough data about the cell/stack to understand its efficiency and durability without causing it to fail. They also provide some indication of the cell/stack’s age in terms of changes in performance over time. Based on a study of the literature, the fundamental factors influencing PEMFC long-term durability and the durability test protocols for both PEMFC stationary and transportation applications were discussed and outlined in depth in this review. This brief analysis should provide engineers and researchers with a fast overview as well as a useful toolbox for investigating PEMFC durability issues.

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