Exploring substrate/ionomer interaction under oxidizing and reducing environments
Abstract
Local gas transport limitation attributed to the ionomer thin-film in the catalyst layer is a major deterrent to widespread commercialization of polymer-electrolyte fuel cells. So far functionality and limitations of these thin-films have been assumed identical in the anode and cathode. In this study, Nafion ionomer thin-films on platinum(Pt) support were exposed to H2 and air as model schemes, mimicking anode and cathode catalyst layers. Findings indicate decreased swelling, increased densification of ionomer matrix, and increased humidity-induced aging rates in reducing environment, compared to oxidizing and inert environments. Observed phenomenon could be related to underlying Pt-gas interaction dictating Pt-ionomer behavior. Presented results could have significant implications about the disparate behavior of ionomer thin-film in anode and cathode catalyst layers.
- Authors:
-
- Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Energy Technologies Area
- Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Energy Technologies Area
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Sustainable Transportation Office. Hydrogen Fuel Cell Technologies Office; National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1440958
- Alternate Identifier(s):
- OSTI ID: 1702991
- Grant/Contract Number:
- AC02-05CH11231; DGE-1106400
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Electrochemistry Communications
- Additional Journal Information:
- Journal Volume: 87; Journal Issue: C; Journal ID: ISSN 1388-2481
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Hydrogen; Fuel cell; Ionomer Thin-film; Confinement; Platinum Interface
Citation Formats
Tesfaye, Meron, MacDonald, Andrew N., Dudenas, Peter J., Kusoglu, Ahmet, and Weber, Adam Z. Exploring substrate/ionomer interaction under oxidizing and reducing environments. United States: N. p., 2018.
Web. doi:10.1016/j.elecom.2018.01.004.
Tesfaye, Meron, MacDonald, Andrew N., Dudenas, Peter J., Kusoglu, Ahmet, & Weber, Adam Z. Exploring substrate/ionomer interaction under oxidizing and reducing environments. United States. https://doi.org/10.1016/j.elecom.2018.01.004
Tesfaye, Meron, MacDonald, Andrew N., Dudenas, Peter J., Kusoglu, Ahmet, and Weber, Adam Z. Fri .
"Exploring substrate/ionomer interaction under oxidizing and reducing environments". United States. https://doi.org/10.1016/j.elecom.2018.01.004. https://www.osti.gov/servlets/purl/1440958.
@article{osti_1440958,
title = {Exploring substrate/ionomer interaction under oxidizing and reducing environments},
author = {Tesfaye, Meron and MacDonald, Andrew N. and Dudenas, Peter J. and Kusoglu, Ahmet and Weber, Adam Z.},
abstractNote = {Local gas transport limitation attributed to the ionomer thin-film in the catalyst layer is a major deterrent to widespread commercialization of polymer-electrolyte fuel cells. So far functionality and limitations of these thin-films have been assumed identical in the anode and cathode. In this study, Nafion ionomer thin-films on platinum(Pt) support were exposed to H2 and air as model schemes, mimicking anode and cathode catalyst layers. Findings indicate decreased swelling, increased densification of ionomer matrix, and increased humidity-induced aging rates in reducing environment, compared to oxidizing and inert environments. Observed phenomenon could be related to underlying Pt-gas interaction dictating Pt-ionomer behavior. Presented results could have significant implications about the disparate behavior of ionomer thin-film in anode and cathode catalyst layers.},
doi = {10.1016/j.elecom.2018.01.004},
journal = {Electrochemistry Communications},
number = C,
volume = 87,
place = {United States},
year = {Fri Feb 09 00:00:00 EST 2018},
month = {Fri Feb 09 00:00:00 EST 2018}
}
Web of Science
Figures / Tables:
Works referenced in this record:
Experimental Method to Determine the Mass Transport Resistance of a Polymer Electrolyte Fuel Cell
journal, January 2006
- Beuscher, Uwe
- Journal of The Electrochemical Society, Vol. 153, Issue 9
The Priority and Challenge of High-Power Performance of Low-Platinum Proton-Exchange Membrane Fuel Cells
journal, March 2016
- Kongkanand, Anusorn; Mathias, Mark F.
- The Journal of Physical Chemistry Letters, Vol. 7, Issue 7
Unexplained transport resistances for low-loaded fuel-cell catalyst layers
journal, January 2014
- Weber, Adam Z.; Kusoglu, Ahmet
- J. Mater. Chem. A, Vol. 2, Issue 41
Molecular Dynamics Simulations on O 2 Permeation through Nafion Ionomer on Platinum Surface
journal, January 2016
- Jinnouchi, Ryosuke; Kudo, Kenji; Kitano, Naoki
- Electrochimica Acta, Vol. 188
Effect of interface on surface morphology and proton conduction of polymer electrolyte thin films
journal, January 2013
- Ohira, Akihiro; Kuroda, Seiichi; Mohamed, Hamdy F. M.
- Physical Chemistry Chemical Physics, Vol. 15, Issue 27
Impact of Substrate and Processing on Confinement of Nafion Thin Films
journal, April 2014
- Kusoglu, Ahmet; Kushner, Douglas; Paul, Devproshad K.
- Advanced Functional Materials, Vol. 24, Issue 30
Pt-Oxide Coverage-Dependent Oxygen Reduction Reaction (ORR) Kinetics
journal, January 2012
- Subramanian, N. P.; Greszler, T. A.; Zhang, J.
- Journal of The Electrochemical Society, Vol. 159, Issue 5
Effects of Ionomer Morphology on Oxygen Reduction on Pt
journal, January 2015
- Chlistunoff, Jerzy; Pivovar, Bryan
- Journal of The Electrochemical Society, Vol. 162, Issue 8
Activity benchmarks and requirements for Pt, Pt-alloy, and non-Pt oxygen reduction catalysts for PEMFCs
journal, March 2005
- Gasteiger, Hubert A.; Kocha, Shyam S.; Sompalli, Bhaskar
- Applied Catalysis B: Environmental, Vol. 56, Issue 1-2, p. 9-35
Atomistic Adsorption of Oxygen and Hydrogen on Platinum Catalysts by Hybrid Grand Canonical Monte Carlo/Reactive Molecular Dynamics
journal, April 2016
- Gai, Lili; Shin, Yun Kyung; Raju, Muralikrishna
- The Journal of Physical Chemistry C, Vol. 120, Issue 18
Interfacial Structure and Proton Conductivity of Nafion at the Pt-Deposited Surface
journal, December 2015
- Ono, Yutaro; Nagao, Yuki
- Langmuir, Vol. 32, Issue 1
Nafion Structural Phenomena at Platinum and Carbon Interfaces
journal, December 2009
- Wood, David L.; Chlistunoff, Jerzy; Majewski, Jaroslaw
- Journal of the American Chemical Society, Vol. 131, Issue 50
Self-Assembly and Transport Limitations in Confined Nafion Films
journal, January 2013
- Modestino, Miguel A.; Paul, Devproshad K.; Dishari, Shudipto
- Macromolecules, Vol. 46, Issue 3, p. 867-873
In Situ Method for Measuring the Mechanical Properties of Nafion Thin Films during Hydration Cycles
journal, August 2015
- Page, Kirt A.; Shin, Jae Wook; Eastman, Scott A.
- ACS Applied Materials & Interfaces, Vol. 7, Issue 32
New Insights into Perfluorinated Sulfonic-Acid Ionomers
journal, January 2017
- Kusoglu, Ahmet; Weber, Adam Z.
- Chemical Reviews, Vol. 117, Issue 3
Surface Oxidation of Platinum-Group Transition Metals in Ambient Gaseous Environments: Role of Electrochemical versus Chemical Pathways
journal, August 2000
- Luo, Hai; Park, Sungho; Chan, Ho Yeung H.
- The Journal of Physical Chemistry B, Vol. 104, Issue 34
Molecular and atomic adsorption of oxygen on the Pt(111) and Pt(S)-12(111) × (111) surfaces
journal, March 1980
- Gland, John L.
- Surface Science, Vol. 93, Issue 2-3
The adsorption of oxygen on a stepped platinum single crystal surface
journal, August 1978
- Gland, J. L.; Korchak, V. N.
- Surface Science, Vol. 75, Issue 4
The passivating oxidation of platinum
journal, December 1988
- Mccabe, R.
- Journal of Catalysis, Vol. 114, Issue 2
Adsorption manners of hydrogen on Pt(1 0 0), (1 1 0) and (1 1 1) surfaces at high coverage
journal, April 2017
- Shi, Qiaocui; Sun, Rong
- Computational and Theoretical Chemistry, Vol. 1106
Coadsorption of Hydrogen and Carbon Monoxide on (111) Platinum
journal, January 1971
- Baldwin, Vaniah H.; Hudson, John B.
- Journal of Vacuum Science and Technology, Vol. 8, Issue 1
Adsorption of hydrogen on a Pt(111) surface
journal, February 1976
- Christmann, K.; Ertl, G.; Pignet, T.
- Surface Science, Vol. 54, Issue 2
Control factor of native oxide growth on silicon in air or in ultrapure water
journal, August 1989
- Morita, M.; Ohmi, T.; Hasegawa, E.
- Applied Physics Letters, Vol. 55, Issue 6
Growth of native oxide on a silicon surface
journal, August 1990
- Morita, M.; Ohmi, T.; Hasegawa, E.
- Journal of Applied Physics, Vol. 68, Issue 3, p. 1272-1281
Structure of the Ionomer Film in Catalyst Layers of Proton Exchange Membrane Fuel Cells
journal, November 2013
- He, Qianping; Suraweera, Nethika S.; Joy, David C.
- The Journal of Physical Chemistry C, Vol. 117, Issue 48
Nanostructure/Swelling Relationships of Bulk and Thin-Film PFSA Ionomers
journal, May 2016
- Kusoglu, Ahmet; Dursch, Thomas J.; Weber, Adam Z.
- Advanced Functional Materials, Vol. 26, Issue 27
Works referencing / citing this record:
Substrate‐Dependent Molecular and Nanostructural Orientation of Nafion Thin Films
journal, July 2019
- Kushner, Douglas I.; Kusoglu, Ahmet; Podraza, Nikolas J.
- Advanced Functional Materials, Vol. 29, Issue 37
Dual Cross‐linked Vinyl Vitrimer with Efficient Self‐Catalysis Achieving Triple‐Shape‐Memory Properties
journal, August 2019
- Niu, Xiling; Wang, Fenfen; Kui, Xing
- Macromolecular Rapid Communications, Vol. 40, Issue 19
Figures / Tables found in this record: