Amorphous Iridium-Ruthenium-Oxide (IrRuOx) Coated Electrode for Electrolyzer, CECEAIrRuO
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IrRuOx is an industry standard for the Oxygen Evolution Reaction (OER) in acidic environments, specifically for PEM (Proton Exchange Membrane) electrolyzers. It is designed to solve the "Performance vs. Stability" paradox: Ruthenium is the most active catalyst but dissolves easily, while Iridium is highly stable but more expensive and slightly less active. Basically Ru acts as the primary "engine," providing exceptionally low overpotential, while Ir acts as the "structural stabilizer." It modifies the electronic structure of the oxide lattice, increasing the formation energy of RuO4 (the volatile species), which prevents the Ruthenium from leaching into the electrolyte.
IrRuOx electrode is especially suitable for the PEM electrolyzer system with high pressure and high current density.
| Part Number |
CECEAIrRuO |
| Electrode Components |
Amorphous IrRuOx active material was chemically plated on the conductive substrates. IrOx : RuOx ~ 1:1 (atomic ratio) |
| Ti Felt Substrate |
Thickness: 250 um Porosity: 50-60 % Fiber diameter: 25-50 um Fiber length: 35 mm Special coating (eg: Pt, Au) on the substrate can be additionally supplied upon request. |
| SS Felt Substrate |
Thickness: 620 um Porosity: 50-60 % |
| Ti Mesh Substrate |
Thickness: 200 um Mesh pore: 1mm*2 mm |
| Loading Amount |
2 mg/cm2 |
| Electrode Dimension |
L 5cm * W 5cm |
| Package Size | 1 pcs/pack |
Notes: Please try to store the IrRuOx electrodes in a dry place.
References:
- S. Siracusano, et al. Nanosized IrOx and IrRuOx electrocatalysts for the O2 evolution reaction in PEM water electrolysers, Appl. Catal. B Environ.. 2015, 164, 488-495.
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E. Sadeghi, et al. Shaping low-iridium IrRuOx electrocatalysts with structural and electronic modulation for proton exchange membrane electrolyzers, J. Mater. Chem. A, 2025,13, 39841-39858.