Table 2 The obtained microstructural properties of the GDL samples.

From: Quantitative measurement and comparison of breakthroughs inside the gas diffusion layer using lattice Boltzmann method and computed tomography scan

Region

Connectivity (%)

Normalized effective diffusivity (–)

Mean diameter (µm)

Surface contact area (\(\frac{\upmu {\rm m}^2}{\upmu {\rm m}^3}\))

Volume fraction (%)

Porous, aged

100

0.86

14.76

7.67

77.42

Porous, pristine

100

0.76

7.6

8.33

70.33

Solid, aged

93

0.17

2.06

7.67

22.58

Solid, pristine

93

0.26

2.56

8.33

29.67

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