Positronium Formation in Aromatic Polymer Electrolytes for Fuel Cells (original) (raw)
2009, Journal of Physical Chemistry B
AI-generated Abstract
The formation of positronium (Ps) in sulfonated aromatic proton conducting membranes for polymer electrolyte fuel cells (PEFC) was investigated using positron annihilation lifetime spectroscopy (PALS). The study found that Ps formation is significantly inhibited in polymers lacking -SO2 groups, while it is favorable in those containing -SO2. This distinction underscores the importance of sulfonated polymers in enhancing gas permeation mechanisms, which is crucial for improving the efficiency of PEFCs.
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