2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

New conceptual design for direct methanol micro fuel cell using nanoporous inorganic proton-transport membrane

S.M. Kwan and K.L. Yeung
Hong Kong University of Science and Technology, HK

nanoporous membrane, ZSM-5, fuel cell, MFI

Several inorganic-organic hybrid materials such as zirconium hydrogen phosphate immobilized in SPEEK, crosslinked polyethylene oxide doped with acidic moities and pore-filling electrolyte membrane on porous inorganic substrates as well as zeolite-doped Nafion also showed promising results. Recent work by the authors [1] demonstrated that ZSM-5 zeolite membrane is both an effective proton conductor and methanol barrier. Studies suggest that the zeolite membrane structure and chemistry can be further engineered to obtain higher proton flux without jeopardizing the micromembrane’s ability to prevent fuel crossover. A micro fuel cell was assembled from ZSM-5 micromembrane and tested using hydrogen and methanol fuels and compared with micro fuel cell using traditional Nafion 117 membrane. The results show that zeolite is a promising membrane material for micro fuel cell.

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Nanotech 2007 Conference Program Abstract


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