This is a low porosity thermally platinized sintered titanium fiber felt product with good electrical conductivity. Metallic or thermally platinized titanium fiber felts are primarily used in standard PEM electrolyzer single cells and stacks as the flow field or diffuser material, particularly on the oxygen (anode) side. Electrolyzer hardware cannot use carbon-based gas diffusion layers (GDLs) at the anode because carbon will immediately oxidize to CO2 (if the medium is acidic) or carbonate ions (if the medium is basic) during the electrolysis reaction. Thermally platinized titanium fiber felt becomes an ideal candidate as the diffusion medium for PEM electrolyzer applications. Thermally platinized titanium fiber felt also provides electrical contact between the anode catalyst layer and bipolar plate or current collector at the anode side. Our thermally platinized titanium felts are...

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