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. 2022 Nov 17;23(22):14252. doi: 10.3390/ijms232214252

Table 6.

Ion exchange capacity, water uptake and proton conductivity of Nafion-SSA composite membranes. Adapted with permission from [122]. Copyright 2019, Elsevier.

Sample IEC
(meq g−1)
Water Uptake
(%)
Proton Conductivity a
(mS cm−1)
20% RH 80% RH
Nafion/SSA (0.5 wt.%) 1.2 22.0 5.9 151
Nafion/SSA (1.0 wt.%) 1.3 24.1 8.8 230
Nafion/SSA (1.5 wt.%) 1.1 20.0 5.5 143
Recast Nafion 1.0 17.3 5.0 111

a Proton conductivity at 80 °C.