Composite membranes based on highly sulfonated PEEK and PBI: Morphology characteristics and performance
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SPEEK membranes with a DS that is too high exhibit excessive swelling behavior and even dissolve in aqueous solutions at high temperatures.
“As reported in the literature, SPEEK membranes with a DS that is too high exhibit excessive swelling behavior and even dissolve in aqueous solutions at high temperatures; so it is difficult to find commercial SPEEK membranes in the market [39,40,41].”
SPEEK membranes with high DS may provide satisfactory proton conductivity close to Nafion but significantly impair chemical stability, dimensional stability, and mechanical strength.
“Even though the SPEEK membranes with high DS values may provide satisfactory proton conductivity, which is even close to Nafion, they also significantly impair the chemical stability, dimensional stability, and mechanical strength.”
Cites
Kerres, J., Ullrich, A., Meier, F., & Häring, T. (1999) · Solid State Ionics · doi:10.1016/s0167-2738(99)00181-2 · Cited by 454 · see citing works
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Song, Y., Guo, Z., Yin, J., Liu, M., Tolj, I., Grigoriev, S. A., Ge, M., & Sun, C. (2025) · Polymers · doi:10.3390/polym17162181 · Cited by 28 · see citing works
- Authors
- Zhang, H., Li, X., Zhao, C., Fu, T., Shi, Y., & Na, H.
- Affiliations
- Jilin University (CN)
- KU Leuven (BE)
- Corresponding author
- Na, Hui
- Venue
- Journal of Membrane Science
- Publisher
- Elsevier BV
- Published
- 2008-02-01
- Volume
- 308
- Issue
- 1-2
- Pages
- 66-74
- ISSN
- 0376-7388 (ISSN-L)
- OpenAlex
- W2066167141
- Cited by
- 195
- References
- 1
- Citations by year
- 2026: 3 · 2025: 5 · 2024: 5 · 2023: 7 · 2022: 6 · 2021: 10 · 2020: 9 · 2019: 10 · 2018: 12 · 2017: 12 · 2016: 8 · 2015: 12 · 2014: 15 · 2013: 12 · 2012: 19
- FWCI
- 10.09
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Membrane Science (publishedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
- Physical Sciences › Engineering › Mechanical Engineering › Membrane Separation and Gas Transport
- Physical Sciences › Engineering › Biomedical Engineering › Membrane-based Ion Separation Techniques
- Keywords
- composite membranes, polybenzimidazole, acid-base interactions, proton exchange membranes, proton conductivity, membrane swelling, ion exchange capacity, thermal stability, mechanical properties, proton exchange membrane fuel cells
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
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