. 2017 Sep 18;2(9):5831–5839. doi: 10.1021/acsomega.7b00687

Table 3. Membrane Proton Conductivity (σ), Diffusion Coefficient (D_σ), Methanol Permeability (P_m), and Activation Energy of Proton Conduction (E_a) of Different PEMs.

membrane type	σ (×10^–2) (S cm^–1)	D_σ (×10^–10) m² s^–1	P_m (× 10^–7) cm² s^–1	E_a (kJ mol^–1)
Nafion	8.98	6.41		5.41
SPES	3.45	2.13	3.27	21.08
PAS-1	6.43	3.17	3.15	18.55
PAS-2	7.29	3.35	1.32	16.12
PAS-5	9.49	3.31	1.19	14.32
PAS-10	6.33	3.02		17.16
PAS-20	6.2	2.59		16.92

Table 3. Membrane Proton Conductivity (σ), Diffusion Coefficient (Dσ), Methanol Permeability (Pm), and Activation Energy of Proton Conduction (Ea) of Different PEMs.