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. 2022 Jan 12;14(2):300. doi: 10.3390/polym14020300

Table 2.

Preliminary characteristics of various proton-conducting polysulfone based composite membranes along with their fuel cell evaluation.

Membrane Membrane Characteristics Fuel Cell Performance Ref.
WA (%) IEC
(meq. g−1)
Ionic Conductivity
(S cm−1)
Methanol Permeability Selectivity Ratio Oxidative Stability
PSF/MOF/Si nanocomposite 16.50 0.86 0.017 @ 70°C --- --- --- OCV: 0.90 V; PD: 40.80 mW cm−2 @ 160 °C [67]
Crosslinked CNDs-SPPSU 134 1.67 0.0563 @ 80 °C --- --- --- OCV: 1.0224 V @ 100% RH [68]
SPEESSA/sulfonic acid zeolite composite 29.12 3.189 0.124 --- --- --- OCV: 0.91 V; PD: 0.45 W cm−2 @ 1.1 A cm−2 [69]
SPSU/NIMs-GO composite 34.1 1.49 0.23 @ 75 °C --- --- --- OCV: 1.038 V; PD: 167.6 mW cm−2 @ 60 °C [70]
SPSU-LDH composite 31 1.49 0.0137 @ 120 °C --- --- --- PD: 204.5 mW cm−2 @ 110 °C [71]
PSF-N-C3H6SO3H/ PSF-O-C3H6SO3H 60 2.03 0.04666 2.65 × 10−8 cm2 s−1 --- 94.12% residual mass remains at 80 °C for 1 h in Fenton’s solution --- [72]
PSU/SPANI/Nb2O5 nanocomposite 17.6 1.50 0.0674 --- --- 98.6% residual mass remains in Fenton’s solution --- [73]
PSU-g-phosphonated polystyrene/SPSU composite 23.07 --- 0.0172 @ 95 °C 0.96 × 10−8 cm2 s−1 --- >95% residual mass remains at 25 °C for 120 h in Fenton’s solution --- [79]
Phosphonated PSU 6.6 2.75 0.0003 @ 160 °C --- --- 87.7% residual mass remains for 70 h in Fenton’s solution --- [82]
PA doped TDAP-g-PSU --- --- 0.056 @ 160 °C --- --- --- OCV: 0.92 V; PD: 453 mW cm−2 @ 150 °C [83]
Poly(1-vinylimidazole)-g-PSU 220.3 --- 0.127 @ 160 °C --- --- --- OCV: 0.98 V; PD: 559 mW cm−2 @ 160 °C [84]