Performance of high sulfonated poly(ether ether ketone) improved with microcrystalline cellulose and 2,3-dialdehyde cellulose for proton exchange membranes

Sulfonated poly (ether ether ketone) (SPEEK) has received substantial attention for its potential to improve the electrochemical behavior and thermomechanical capabilities of direct methanol fuel cells. This study examines how the integration by solution casting of microcrystalline cellulose (MCC) and 2,3-dialdehyde cellulose (DAC) onto highly sulfonated PEEK (with a sulfonation degree of 80%) affects its physicochemical properties and morphological structures. The mechanical attributes and proton conductivity of the polymer matrix are impacted by MCC and DAC inclusion into SPEEK membrane. The maximum proton conductivity was seen in the SPEEK/MCC membranes at 70 °C (up to 0.1 S cm −1 ). The proton conductivity in methanol vapor was increased by SPEEK/DAC membranes at high temperatures as opposed to pristine SPEEK and SPEEK/MCC membranes.

Research article

Mohamed Amine Ben Moussa
Zakarya Ahmed
Khaled Charradi
Boutheina Ben Fraj
Sami Boufi
Andreas Koschella
Thomas Heinze
Sherif M. A. S. Keshk
Ibtissem Ben Assaker

Publication date: 2024-08-10
Journal / proceedings: Materials for Renewable and Sustainable Energy
Publisher: Springer Science and Business Media LLC
Volume: 13
Issue: 3
Pages: 319-331
DOI: 10.1007/s40243-024-00267-6

Related expertise

Advanced Materials & Nanotechnology Clean Energy & Hydrogen

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Citation

Mohamed Amine Ben Moussa; Zakarya Ahmed; Khaled Charradi; Boutheina Ben Fraj; Sami Boufi; Andreas Koschella; Thomas Heinze; Sherif M. A. S. Keshk; Ibtissem Ben Assaker. 2024-08-10. Performance of high sulfonated poly(ether ether ketone) improved with microcrystalline cellulose and 2,3-dialdehyde cellulose for proton exchange membranes. Materials for Renewable and Sustainable Energy. 319-331. https://doi.org/10.1007/s40243-024-00267-6