Novel nanocomposite proton exchange membranes based on Nafion® and AMPS-modified montmorillonite for fuel cell applications
2010; Elsevier BV; Volume: 365; Issue: 1-2 Linguagem: Inglês
10.1016/j.memsci.2010.09.014
ISSN1873-3123
AutoresMohammad Mahdi Hasani‐Sadrabadi, Erfan Dashtimoghadam, Fatemeh Sadat Majedi, Kourosh Kabiri, Mehran Solati‐Hashjin, Homayoun Moaddel,
Tópico(s)Advanced Battery Materials and Technologies
ResumoA series of novel proton exchange membranes based on Nafion® and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) modified montmorillonite (MMT) were prepared and investigated for high performance fuel cell applications. X-ray diffraction patterns revealed an exfoliated microstructure for the modified clay in the Nafion® matrices. Proton conductivity and methanol permeability results indicated that the incorporation of AMPS-modified MMT into Nafion® matrices results in considerably reduced methanol crossover while maintaining conductivity properties. Direct methanol–air single fuel cell tests revealed a cell efficiency of 20% for Nafion®/AMPS-MMT-3 wt.% compared to 13.72% for Nafion®117 at 5 M methanol feed, and also a higher power density of 88 mW cm−2 compared to 39 mW cm−2 for Nafion®117. Owing to such favorable features, fabricated Nafion®/AMPS-MMT membranes could be considered as promising polymeric electrolytes for high performance fuel cell applications.
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