(Plenary) Electrochemical Diagnostics and Modeling in Developing the PEMFC Cathode
Abstract
Reducing the use of precious metal in a proton exchange membrane fuel cell is a key challenge in mass commercialization of fuel cell electric vehicles. However, as Pt loadings are reduced, fuel cell performance losses due to mass transport phenomena become more localized to the Pt and ionomer interface. In this paper, we provide an overview of how we use in-situ electrochemical diagnostics and modeling to understand the performance of low-Pt electrodes, identify their key limiting factors, and guide our catalyst layer development. Furthermore, diagnostics used to quantify the local-Pt oxygen transport resistance and the ionomer adsorption on the Pt surface will be discussed.
- Authors:
-
- General Motors, Pontiac, MI (United States)
- General Motors, Pontiac, MI (United States); Univ. of South Carolina, Columbia, SC (United States)
- Publication Date:
- Research Org.:
- General Motors, Pontiac, MI (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Sustainable Transportation Office. Hydrogen Fuel Cell Technologies Office
- OSTI Identifier:
- 1504243
- Grant/Contract Number:
- EE0007271
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ECS Transactions (Online)
- Additional Journal Information:
- Journal Name: ECS Transactions (Online); Journal Volume: 75; Journal Issue: 14; Journal ID: ISSN 1938-6737
- Publisher:
- Electrochemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE
Citation Formats
Kongkanand, Anusorn, Yarlagadda, Venkata, Garrick, Taylor R., Moylan, Thomas E., and Gu, Wenbin. (Plenary) Electrochemical Diagnostics and Modeling in Developing the PEMFC Cathode. United States: N. p., 2016.
Web. doi:10.1149/07514.0025ecst.
Kongkanand, Anusorn, Yarlagadda, Venkata, Garrick, Taylor R., Moylan, Thomas E., & Gu, Wenbin. (Plenary) Electrochemical Diagnostics and Modeling in Developing the PEMFC Cathode. United States. https://doi.org/10.1149/07514.0025ecst
Kongkanand, Anusorn, Yarlagadda, Venkata, Garrick, Taylor R., Moylan, Thomas E., and Gu, Wenbin. Mon .
"(Plenary) Electrochemical Diagnostics and Modeling in Developing the PEMFC Cathode". United States. https://doi.org/10.1149/07514.0025ecst. https://www.osti.gov/servlets/purl/1504243.
@article{osti_1504243,
title = {(Plenary) Electrochemical Diagnostics and Modeling in Developing the PEMFC Cathode},
author = {Kongkanand, Anusorn and Yarlagadda, Venkata and Garrick, Taylor R. and Moylan, Thomas E. and Gu, Wenbin},
abstractNote = {Reducing the use of precious metal in a proton exchange membrane fuel cell is a key challenge in mass commercialization of fuel cell electric vehicles. However, as Pt loadings are reduced, fuel cell performance losses due to mass transport phenomena become more localized to the Pt and ionomer interface. In this paper, we provide an overview of how we use in-situ electrochemical diagnostics and modeling to understand the performance of low-Pt electrodes, identify their key limiting factors, and guide our catalyst layer development. Furthermore, diagnostics used to quantify the local-Pt oxygen transport resistance and the ionomer adsorption on the Pt surface will be discussed.},
doi = {10.1149/07514.0025ecst},
journal = {ECS Transactions (Online)},
number = 14,
volume = 75,
place = {United States},
year = {Mon Aug 22 00:00:00 EDT 2016},
month = {Mon Aug 22 00:00:00 EDT 2016}
}
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Cited by: 30 works
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Figures / Tables:
Figure 1: (Left) Voltage at 1.75 A/cm2 as a function of available Pt area (r.f. – roughness factor) for different catalysts. (a) Schematic of membrane, cathode, diffusion medium (DM), and bipolar plate (BP) and the transport therein. (b) Close up view of the local O2 transport to a Pt nanoparticlemore »
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Works referencing / citing this record:
Effects of Porous Carbon Morphology, Agglomerate Structure and Relative Humidity on Local Oxygen Transport Resistance
journal, September 2019
- Cetinbas, Firat C.; Ahluwalia, Rajesh K.; Kariuki, Nancy N.
- Journal of The Electrochemical Society, Vol. 167, Issue 1
Tailoring Catalyst Morphology towards High Performance for Low Pt Loaded PEMFC Cathodes
journal, January 2018
- Harzer, Gregor S.; Orfanidi, Alin; El-Sayed, Hany
- Journal of The Electrochemical Society, Vol. 165, Issue 10
Mitigation of PEM Fuel Cell Catalyst Degradation with Porous Carbon Supports
journal, January 2019
- Padgett, Elliot; Yarlagadda, Venkata; Holtz, Megan E.
- Journal of The Electrochemical Society, Vol. 166, Issue 4
Editors' Choice—Connecting Fuel Cell Catalyst Nanostructure and Accessibility Using Quantitative Cryo-STEM Tomography
journal, January 2018
- Padgett, Elliot; Andrejevic, Nina; Liu, Zhongyi
- Journal of The Electrochemical Society, Vol. 165, Issue 3
The Key to High Performance Low Pt Loaded Electrodes
journal, January 2017
- Orfanidi, A.; Madkikar, P.; El-Sayed, H. A.
- Journal of The Electrochemical Society, Vol. 164, Issue 4
Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.