Robust poly(p‐phenylene oxide) anion exchange membranes reinforced with pore‐filling technique for water electrolysis

Zhiming Feng; Gaurav Gupta; Mohamed Mamlouk

doi:10.1002/app.55340

journal article Open Access Feb 29, 2024

Robust poly(p‐phenylene oxide) anion exchange membranes reinforced with pore‐filling technique for water electrolysis

Zhiming Feng

Gaurav Gupta

Mohamed Mamlouk

Journal of Applied Polymer Science Vol. 141 No. 19 · Wiley

View at Publisher Save 10.1002/app.55340

Abstract

AbstractMechanical robustness and durability are crucial for anion exchange membranes to guarantee the longevity and consistent performance of AEM water electrolysis (AEMWE) systems. In this study, a composite membrane based on the quaternized poly(p‐phenylene oxide) (QPPO)/polytetrafluoroethylene (PTFE) was developed. This membrane was fabricated by enhancing the QPPO‐based AEM through a pore‐filling technique within a porous PTFE structure. The tensile strength of the composite membrane was increased significantly from 16.5 to 31 MPa. The conductivity of the composite membrane was 6.25 mScm−1 lower than 30 mScm−1 of the QPPO‐based membrane at 20°C, resulting from the low volume fraction of QPPO in the composite membrane. At 40% RH, the net change mass of the composite membrane is 1.59%, much lower than that of QPPO‐based membrane (10.98%) at 40°C. The composite membrane demonstrated a significantly increased lifetime in the working electrolyzer (>200 h) compared with an otherwise identical electrolyzer assembled with a QPPO‐based membrane (50 h).

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References

Details

Published: Feb 29, 2024
Vol/Issue: 141(19)
License: View

Authors

Z

Zhiming Feng

Chemical Engineering Imperial College London London UK

G

Gaurav Gupta

Chemical Engineering Lancaster University Lancaster UK

M

Mohamed Mamlouk

School of Engineering Newcastle University Newcastle upon Tyne UK

Funding

Engineering and Physical Sciences Research Council Award: EP/T00939X/1

Cite This Article

Zhiming Feng, Gaurav Gupta, Mohamed Mamlouk (2024). Robust poly(p‐phenylene oxide) anion exchange membranes reinforced with pore‐filling technique for water electrolysis. Journal of Applied Polymer Science, 141(19). https://doi.org/10.1002/app.55340

Robust poly(p‐phenylene oxide) anion exchange membranes reinforced with pore‐filling technique for water electrolysis

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