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Characterization of Nafion®/Zirconium Sulphophenyl Phosphate Nanocomposite Membrane for Direct Methanol Fuel Cells

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Layered structure zirconium sulphophenyl phosphate (ZrSPP) was prepared from the precipitation of Zr4+ ion and m-sulphophenyl phosphonic (SPP) acid at a mole ratio of P to Zr = 2.0. The reflective index measurement indicated that the methanol permeability of unmodified Nafion® 117 was 2.3 × 10−6 cm2/s at RT while that of the Nafion®/ZrSPP membrane (∼50 m thick) decreased to 6.5 × 10−7 cm2/s. Nafion®/ZrSPP (10 wt%) nanocomposite membranes delivered constant power output 104 mW/cm2 @ 0.4 V under 1 M MeOH/dry air at 70 °C even in the wide range of air stoichiometry from 1.5 to 3.0.


Document Type: Research Article


Publication date: 2008-09-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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