Degradation of QPPO-based anion polymer electrolyte membrane at neutral pH

Feng, Zhiming; Gupta, Gaurav; Mamlouk, Mohamed

doi:10.1039/d3ra02889e

Cited by 6 publications

(2 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…25,26 As a result, PPO has been extensively employed as a material for AEMs because of its exceptional thermomechanical stability and the benefits mentioned above. 25,27,28 In this research, the highly conductive quaternized PPO-based AEM was reinforced by using the PTFE substrate. The physical and electrochemical properties of PTFE-reinforced AEMs were investigated to elucidate the advantages of the composite membrane.…”

Section: Introductionmentioning

confidence: 99%

“…Although its stability is somewhat lower than that of aryl‐ether‐free polymers, PPO still has better chemical stability than engineering polymers such as poly(ether sulfone)s or poly(ether ketone)s are commonly used in AEMs 25,26 . As a result, PPO has been extensively employed as a material for AEMs because of its exceptional thermomechanical stability and the benefits mentioned above 25,27,28 …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Feng,

Gupta,

Mamlouk

2024

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

Mechanical 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).

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%