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Table 4 Corrosion parameters estimated on the basis of the potentiokinetic curves obtained in cathode conditions (O₂ saturated solution), based on Fig. 8

From: Corrosion analysis of graphite sinter as bipolar plates in the low-temperature PEM fuel cell simulated environments

	E_corr [V vs. SCE]	i_corr [A cm⁻²]	R_p [kΩ cm²]	i at 0.6 V vs. SCE [A cm⁻²]
pH 1	0.112 σ = 0.0015	3.44 · 10⁻⁶ σ = 6.3 · 10⁻⁷	451 σ = 10	3.21 · 10⁻⁶ σ = 2.3 · 10⁻⁷
pH 3	0.017 σ = 0.0015	1.88 · 10⁻⁶ σ = 5.5 · 10⁻⁷	209 σ = 6.5	7.78 · 10⁻⁶ σ = 1.9 · 10⁻⁷
pH 5	−0.020 σ = 0.0076	1.51 · 10⁻⁶ σ = 4.0 · 10⁻⁷	765 σ = 13	4.36 · 10⁻⁶ σ = 6.2 · 10⁻⁷

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