Evaluation of Fuel Cell Performance of Nafion / Molecular Sieves Nanocomposite Membranes
Mohammad M. Hasani-Sadrabadi, Seyyed R. Ghaffarian, Erfan Dashtimoghaddam
AI summary
65% confidenceNafion/Molecular Sieves nanocomposite membranes show improved performance in DMFC applications, with enhanced selectivity and power density compared to Nafion 117.
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Open in lab →What they did
- System
- MFC
What worked
Abstract
Polymeric nanocomposite membranes were prepared through incorporating ZSM-5 type zeolite (SiO2/Al2O3=25) as molecular sieves into Nafion matrix for the direct methanol fuel cells (DMFC) applications. The transport properties of prepared membranes were characterized by measuring the methanol diffusion coefficient and proton conductivity. Nanocomposite membrane with 3.0 wt% ZSM-5 loading showed membrane selectivity of approximately 100,000 in comparison with 40,500 of Nafion117, and also a higher power density (172 mW.cm⁻²) than Nafion® 117 (108 mW.cm⁻²) for single cell DMFC in a 5 molar methanol feed.
Key findings
- Nanocomposite membrane with 3.0 wt% ZSM-5 loading shows membrane selectivity of approximately 100,000
- Higher power density (172 mW.cm⁻²) than Nafion 117 (108 mW.cm⁻²) for single cell DMFC
- Improved transport properties, including methanol diffusion coefficient and proton conductivity
Keywords
Identifiers
- Journal
- ECS Transactions
- Year
- 2009