Effects of Gas-Diffusion Layers and Water Management on the Carbon Corrosion of a Catalyst Layer in Proton-Exchange Membrane Fuel Cells

Table 1

Physicochemical and electrical characterization of GDLs.

Property	Unit	GDL A	GDL B
Thickness	Μm
Through-plane electrical resistance	mΩ cm^2
In-plane electrical resistance (MD^a/TD^b)	Ω
Through-plane gas permeability	10^-12 m^2
In-plane gas permeability	10^-12 m^2
Contact angle (substrate/MPL)	°
Fluorine at MPL surface	wt%
Fluorine at substrate surface	wt%

Compressed at 10 kgf cm^-2. Uncompressed. ^aMachine direction. ^bTransverse direction.