Novel composite membranes based on dicationic ionic liquid and polybenzimidazole mixtures as strategy for enhancing thermal and electrochemical properties of proton exchange membrane fuel cells applications at high temperature
作者： Khadijeh Hooshyari , Mehran Javanbakht , Mina Adibi
DOI: 10.1016/J.IJHYDENE.2016.04.245
关键词:
摘要: Abstract In this work, innovative proton exchange membranes containing dicationic ionic liquids are developed for elevated temperature fuel cells applications under anhydrous conditions. The composite based on polybenzimidazole (PBI) and liquid 1,6-di(3-methylimidazolium) hexane bis (hexafluorophosphate) (PDC 6 ) or monocationic 1-Butyl-3-methylimidazolium hexafluorophosphate (PMC 4 prepared with solution casting method. analyses of the results demonstrate promising characteristics such as high conductivity cell performance phosphoric acid (PA) doped PDC in comparison PA PMC PBI at temperatures. Dicationic number charge carriers provides suitable channels transfer membranes. 78 mS cm −1 power density 0.40 W cm −2 (at 0.5 V) achieved PBI/ionic mole ratio: 4 at 180 °C condition.
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