244th ECS Meeting


Angelika Magyar

Onderwerp Previous Events
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8 October 2023

The 244th ECS Meeting brings together the most active researchers in academia, government, and industry—professionals and students—to engage, discuss, and innovate in the areas of electrochemistry and solid state science and related technologies. This is the premier destination for industry professionals to experience five days of learning, technical presentations, business development, and networking opportunities.

Date & Location: 8-12 October, Gothenburg, Sweden

SparkNano’s contribution

We are excited to share that our CTO, Paul Poodt will be presenting “Spatial Atomic Layer Deposition of Iridium Oxide Electrocatalyst Layers for PEM Electrolysis” at the conference.

Date & Time: 14.20 – 14.40 CEST, 8 October
Location: Room F5 (Level 2, The Swedish Exhibition & Congress Centre), Gothenburg, Sweden

Proton Exchange Membrane Water Electrolysis (PEMWE) is a commonly used technique to produce green hydrogen from water. A massive upscaling of PEMWE installations is required in the coming decade to keep up with the foreseen demand for green hydrogen. State-of-the-art PEM electrolyzers make use of iridium-based electrocatalyst layers with iridium loadings of 1-2 mg/cm2. The high cost and limited availability of iridium will limit the scalability of PEMWE if the iridium loading cannot be reduced.

Atomic Layer Deposition can be used to apply thin and highly conformal IrO2 films on porous substrates with atomic-scale control of the amount of material that is deposited. When applied to PEM electrolyzers, this can be used to significantly reduce the loading of IrO2. Recently, IrO2 catalyst layers for PEM electrolyzers applied by Spatial ALD with iridium loadings well below 0.1 mg/cm2 have been reported. [1]

He will present plasma enhanced Spatial ALD of iridium oxide and metallic iridium films using a new iridium precursor developed by Air Liquide Advanced Materials. The electrocatalytic efficiency and stability has been characterized using RDE, showing that IrO2 films of just a few nanometer demonstrate an excellent catalytic activity and stability. IrO2 films have been conformally deposited on high surface area titanium porous transport layers (PTL’s) as well as Nafion membranes. First demonstrations on full PEM stack scale show that Spatial ALD can enable iridium loads 10-100x lower than the state of the art while demonstrating an excellent stability in accelerated stress tests.

He will also discuss how Spatial ALD of IrO2 films can be up-scaled to mass production, with emphasis on efficiency or precursor utilization and precursor recovery for recycling.

[1]: https://www.tno.nl/en/newsroom/2022/10/breakthrough-electrolyser-development/

Koen Driesse
Chief Commercial Officer
Paul Poodt
Chief Technological Officer
Come meet us

Do not miss the opportunity! Schedule a meeting with our experts at the conference ahead to learn more about our unique Spatial ALD technology and state-of-the art product portfolio.

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