Table 2: Potential coating materials for metallic bipolar plates.

Coating
Base plate materialReference
AluminumStainless steel
Titanium
Nickel

Conductive polymer[33]
Chromium[83]
Chromium nitride[8487]
Diamond-like carbon[33]
Gold[81, 82]
Gold-titanium[88]
Gold-nickel[88]
Graphite foil

[89]
Graphite topcoat


[89]
Indium tin oxide[90]
Lead oxide[90]
Nickel[91]
Niobium[92]
Organic monopolymer[33]
Platinum[88, 93, 94]
Silicon carbide[90]
Silver[91]
Silver-PTFE[95]
Titanium-aluminum[90]
Titanium nitride oxide[90]
Zirconia[96]