초록 |
The reactions at triple phase boundary are unique in fuel cells. Focal points where polymer to conduct water hydrated ions, electronic conductor to conduct electron and gases in pores of electrodes meet simultaneously allows complete fuel cell reactions. Recently much effort on dispersion has been devoted for energy conversion devices. Polymer solutions are categorized into, firstly, aggregation due to dipolar attractions between chain segments in nonpolar or low-polarity solvents and, secondly, polyelectrolyte behavior due to Coulombic interactions in high-polarity solvents. New dispersion techniques for ion exchangeable polymers should developed to overcome the limitation of behaviors of polymers in various solvents. ACKNOWLEDGEMENT This work was supported by the New and Renewable Energy of the Korea Institute of Energy Technology Evaluation and Planning(KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No.20173010032100). |