Dual proton transport in Schiff base-modified chitosan functionalized with AMPS for fuel cell applications

Proton exchange membranes (PEMs) require high proton conductivity, stability, and durability for fuel cell applications. This study reports the synthesis of N-(2-acrylamido-2-methylpropane sulfonyl) chitosan (CSB) via Schiff base functionalization with 2-acrylamido-2-methylpropane sulfonic acid (AMPS) and the introduction of imine (–CH=N–) and sulfonic acid (–SO3H) groups, which significantly enhance dual proton conduction mechanisms through the Grotthuss and vehicular pathways.

Research article

Sonia Jebri
Walid Mabrouk
Ridha Elleuch
Khaled Charradi
H. Elhosiny Ali
Dorra Ghorbel
Sherif M. A. S. Keshk

Publication date: 2025-11-26
Journal / proceedings: Materials for Renewable and Sustainable Energy
Publisher: Springer Science and Business Media LLC
Volume: 14
Issue: 3
Article number: 60
DOI: 10.1007/s40243-025-00334-6

Related expertise

Advanced Materials & Nanotechnology Clean Energy & Hydrogen

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Citation

Sonia Jebri; Walid Mabrouk; Ridha Elleuch; Khaled Charradi; H. Elhosiny Ali; Dorra Ghorbel; Sherif M. A. S. Keshk. 2025-11-26. Dual proton transport in Schiff base-modified chitosan functionalized with AMPS for fuel cell applications. Materials for Renewable and Sustainable Energy. https://doi.org/10.1007/s40243-025-00334-6