A molecular dynamics calculation model for the Nafion 117 membrane was constructed with the Materials Studio(MS)software platform to study its micro-structure and transport properties. From the calculation model
cell structure of the Nafion 117 membrane with different water content at 300 K and 353 K was obtained
respectively
and the predicted density values of simulated cell are in good agreement with the experimental data. Moreover
temperature has a significant effect on the diffusion coefficients of both water molecules and hydrogen ions. At the same temperature
the predicted diffusion coefficients of both water molecules and hydrogen ions increase with the water content
and at the same water content
the predicted diffusion coefficients of both water molecules and hydrogen ions increase with the temperature.
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references
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