The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Toward Improved Conductivity of Sulfonated Aromatic Proton Exchange Membranes at Low Relative Humidity
Open accessAbstract
Three sulfonated aromatic polymers with different sequence lengths were studied in order to better understand the relationship between molecular structure, morphology, and properties of proton exchange membranes as a function of relative humidity. A random copolymer with a statistical distribution of sulfonic acid groups had very small domain sizes, whereas an alternating polymer with sulfonic acid groups spaced evenly along the polymer chain was found to have larger, but quite isolated, domains. The multiblock copolymer studied herein showed highly phase-separated hydrophilic and hydrophobic domains, with good long-range connectivity. Scanning force microscopy as a function of relative humidity was used to observe water absorption and swelling of the hydrophilic domains in each of the three membranes. The conductivity, water sorption kinetics, and fuel cell performance, especially at low relative humidity, were found to be highly dependent upon the morphology. The multiblock copolymer outperformed both the random and alternating systems at 100 °C and 40% RH fuel cell operating conditions and showed similar performance to Nafion.
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Citations
Cites
Determination of water diffusion coefficients in perfluorosulfonate ionomeric membranes
Zawodzinski, T. A., Neeman, M., Sillerud, L. O., & Gottesfeld, S. (1991) · The Journal of Physical Chemistry · doi:10.1021/j100168a060 · Cited by 987
Water sorption, desorption and transport in Nafion membranes
Majsztrik, P. W., Satterfield, M. B., Bocarsly, A. B., & Benziger, J. B. (2007) · Journal of Membrane Science · doi:10.1016/j.memsci.2007.06.022 · Cited by 348
Cited by
Shin, D. W., Guiver, M. D., & Lee, Y. M. (2017) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00586 · Cited by 989
Self-citationAnion exchange membrane fuel cells: Current status and remaining challenges
Gottesfeld, S., Dekel, D. R., Page, M., Bae, C., Yan, Y., Zelenay, P., & Kim, Y. S. (2018) · Journal of Power Sources · doi:10.1016/j.jpowsour.2017.08.010 · Cited by 895
Self-citationDesign and properties of functional hybrid organic–inorganic membranes for fuel cells
Laberty-Robert, C., Vallé, K., Pereira, F., & Sanchez, C. (2011) · Chemical Society Reviews · doi:10.1039/c0cs00144a · Cited by 527
Ion Transport by Nanochannels in Ion-Containing Aromatic Copolymers
Li, N., & Guiver, M. D. (2014) · Macromolecules · doi:10.1021/ma402254h · Cited by 440
Self-citationAdvances in the high performance polymer electrolyte membranes for fuel cells
Zhang, H., & Shen, P. K. (2012) · Chemical Society Reviews · doi:10.1039/c2cs15269j · Cited by 400
Metadata
- Authors
- Einsla, M. L., Kim, Y. S., Hawley, M., Lee, H.-S., McGrath, J. E., Liu, B., Guiver, M. D., & Pivovar, B. S.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-08-12
- Volume
- 20
- Issue
- 17
- Pages
- 5636-5642
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2022699586
- Cited by
- 221
- References
- 2
- FWCI
- 18.53
- Type
- journal article
- Language
- en
- Open access
- green
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- Einsla, M. L., Kim, Y. S., Hawley, M., Lee, H.-S., McGrath, J. E., Liu, B., Guiver, M. D., & Pivovar, B. S. (2008). Toward Improved Conductivity of Sulfonated Aromatic Proton Exchange Membranes at Low Relative Humidity. Chemistry of Materials. https://doi.org/10.1021/cm801198d
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