New Insights into Perfluorinated Sulfonic-Acid Ionomers

2017/01/23 by Ahmet Kusoglu, Adam Z. Weber · 35 citations
Engineering · Materials Science · Chemical Engineering · #Fuel Cells and Related Materials #Synthesis and properties of polymers #Ionic liquids properties and applications

paper · doi:10.1021/acs.chemrev.6b00159

Abstract

In this comprehensive review, recent progress and developments on perfluorinated sulfonic-acid (PFSA) membranes have been summarized on many key topics. Although quite well investigated for decades, PFSA ionomers' complex behavior, along with their key role in many emerging technologies, have presented significant scientific challenges but also helped create a unique cross-disciplinary research field to overcome such challenges. Research and progress on PFSAs, especially when considered with their applications, are at the forefront of bridging electrochemistry and polymer (physics), which have also opened up development of state-of-the-art in situ characterization techniques as well as multiphysics computation models. Topics reviewed stem from correlating the various physical (e.g., mechanical) and transport properties with morphology and structure across time and length scales. In addition, topics of recent interest such as structure/transport correlations and modeling, composite PFSA membranes, degradation phenomena, and PFSA thin films are presented. Throughout, the impact of PFSA chemistry and side-chain is also discussed to present a broader perspective.

Citations

• The Grotthuss mechanism
• A Comparative Study of Water Uptake By and Transport Through Ionomeric Fuel Cell Membranes

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