A Hierarchical Model for Oxygen Transport in Agglomerates in the Cathode Catalyst Layer of a Polymer-Electrolyte Fuel Cell
Journal Article
·
· Journal of the Electrochemical Society
Numerous experiments have demonstrated that oxygen transport losses in conventional cathode catalyst layers in polymer-electrolyte fuel cells increase as the amount of platinum is decreased. This paper develops an analytical agglomerate model for kinetics and transport that incorporates localized spherical diffusion and adsorption kinetics at the scale of the catalyst nanoparticles. This hierarchical structure provides an improved description of mass transport inside agglomerates at high fluxes. Predictions using morphological parameters and physical properties from the literature are commensurate with published investigations into the influence of platinum loading on oxygen transport.
- Research Organization:
- United Technologies Research Center, East Hartford, CT (United States); Raytheon Technologies Research Center, East Hartford, CT (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Fuel Cell Technologies Office
- Grant/Contract Number:
- EE0007652
- OSTI ID:
- 1438960
- Alternate ID(s):
- OSTI ID: 1509878; OSTI ID: 1883607
- Journal Information:
- Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Vol. 165 Journal Issue: 9; ISSN 0013-4651
- Publisher:
- The Electrochemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 20 works
Citation information provided by
Web of Science
Web of Science
Similar Records
An Analysis of the Impact of Particle Growth on Transport Losses in Polymer-Electrolyte Fuel Cells
An Analysis of the Impact of Particle Growth on Transport Losses in Polymer-Electrolyte Fuel Cells
Modeling Electrochemical Performance of the Hierarchical Morphology of Precious Group Metal-free Cathode for Polymer Electrolyte Fuel Cell
Journal Article
·
Sat May 01 00:00:00 EDT 2021
· Journal of the Electrochemical Society
·
OSTI ID:1438960
An Analysis of the Impact of Particle Growth on Transport Losses in Polymer-Electrolyte Fuel Cells
Journal Article
·
Fri May 07 00:00:00 EDT 2021
· Journal of the Electrochemical Society
·
OSTI ID:1438960
Modeling Electrochemical Performance of the Hierarchical Morphology of Precious Group Metal-free Cathode for Polymer Electrolyte Fuel Cell
Journal Article
·
Fri Aug 04 00:00:00 EDT 2017
· Journal of the Electrochemical Society
·
OSTI ID:1438960
+1 more