Demonstrates high proton conductivity in high-temperature fuel cells, indicating improved efficiency.
High-temperature polymer electrolyte fuel cells require electrolytes that maintain high proton conductivity and acid retention above 100 °C under anhydrous conditions. We design phosphoric acid-doped polybenzimidazole composite membranes containing phosphorylated cellulose nanofibers coated with poly(vinylphosphonic acid) .
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Koyanagi et al. (2026) studied this question.
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