MARITIME H2
MARITIME H2Our NiCo Electrode for Port Hydrogen Supply
Hydrogen fuel-cell ferries and short-sea vessels need bunkering infrastructure at ports. Our bifunctional NiCo electrode supplies port-based electrolytic hydrogen at 91.4% energy efficiency at 0.5 A/cm2 in an AEM cell with a commercial Zirfon separator.
Polarization (RT vs 60 °C)
TESTBEDPort-scale electrolyzer support
Electrode on Ni foam from 100 to 1000 cm2 covers pilot-bunkering electrolyzers and grows with port build-out.
Cell-level efficiency
0.5 A/cm2 at 1.62 V at 60 deg C (91.4%) with bifunctional NiCo and commercial Zirfon separator.
Renewable-coupled
Many ports add solar / wind on the dock side. 9 days solar + 100 hours wind cycling validated on bifunctional NiCo with commercial Zirfon.
Bifunctional, 1000 hours stable
Same coated electrode HER and OER. 1000-hour run: 21 uV/hr voltage drift.
Why ports for maritime hydrogen
Hydrogen-powered ferries and short-sea vessels need bunkering infrastructure where they berth. Ports are the natural integration point. On-site electrolytic hydrogen production reduces dependency on tube-trailer delivery and supports vessel turnaround windows.
Our bifunctional NiCo electrode on Ni foam, electroless-deposited, operates as both HER cathode and OER anode at 80 mV and 260 mV overpotential at 100 mA/cm2 in 30 wt% KOH (no IR correction). At cell level, 0.5 A/cm2 at 1.62 V at 60 deg C with bifunctional NiCo and commercial Zirfon separator (500 um).
Renewable-coupled port hydrogen plants
Ports increasingly add solar or wind capacity on the dock side. Our bifunctional NiCo electrode in the AEM cell with commercial Zirfon was tested under PV-derived schedules for 9 continuous days (peaks ~570 mA/cm2) and wind-derived schedules for 100 hours (0 to 0.78 A/cm2). DeltaV after wind cycling: 20 mV at 0.5 A/cm2.
Stability for shore-power and bunkering use
1000-hour run with bifunctional NiCo + commercial Zirfon at 0.5 A/cm2 / 40 deg C showed 21 uV/hr drift. This baseline supports port-utility planning where the electrolyzer is one of many continuously running systems.
Scaling from pilot bunkering to full deployment
Early maritime hydrogen deployments are typically pilot-scale. Our electrode is supplied on Ni foam from 100 to 1000 cm2, matching the early pilot footprint and scaling with the port's hydrogen build-out.
PV-derived current profile
9 DAYSWind-derived current profile
100 HRFrequently asked questions
Why use a bifunctional NiCo electrode for maritime fuel cell systems?
Our bifunctional NiCo electrode operates as both HER cathode and OER anode at 80 mV and 260 mV overpotential at 100 mA/cm² in 30 wt% KOH (no IR correction). For maritime fuel cell systems, using a single electrode SKU on both sides simplifies stack BOM and qualification.
What cell-level performance is published?
In a 5 cm² AEM cell with bifunctional NiCo electrode on both sides and a commercial Zirfon separator (500 µm) at zero-gap, the cell logs 0.5 A/cm² at 1.81 V at room temperature (82% efficiency) and 1.62 V at 60 °C (91.4%). At 1.0 A/cm²: 2.05 V at RT and 1.79 V at 60 °C.
What is the stability baseline?
Continuous 1000-hour chronopotentiometry at 0.5 A/cm² and 40 °C in 30 wt% KOH (bifunctional NiCo electrode on both sides, commercial Zirfon separator) showed voltage drift of 21 µV/hr. Before/after linear-sweep polarization curves differ by 30 mV at the operating point.
Is the electrode validated for renewable-coupled operation?
Yes. PV-irradiance-derived current schedules applied for 9 continuous days (peaks ~570 mA/cm²) and wind-variation-derived schedules for 100 hours (0 to 0.78 A/cm²) on the same cell. ΔV at 0.5 A/cm² before and after the 100-hour wind run: 20 mV.
What substrate sizes ship?
The bifunctional NiCo electrode is produced on Ni foam in the 100 to 1000 cm² size range. Bench-scale 5 cm² coupons matching the published test cell are also available so customers can reproduce numbers on their own rig before scaling up.
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