ElectroHy AEM anode electrode (2nd Gen) is designed for AEM electrolysis applications. It does not contain any precious metals and uses earth-abundant Fe and Ni as the electrochemically active materials (in the form of NiFeOx). These self-supported electrodes can also function as porous transport layers. It is meant to be used as-is, without any specific steps required for activation.     This is the second generation anode electrode that has increased thickness (~360 microns) with better electrochemical performance for the lower concentration alkaline electrolyte without impacting the performance with 1 Molar concentration.  Standard availability is 30x30cm size.

ElectroHy Anode Electrode (2nd Gen) is a good replacement option for ElectroHy Anode Electrode (that had a thickness of ~270 microns).

Technical specifications:

• Thickness: ~360 µm
• Electrochemically Active Materials: NiFeOx
• Support: Compressed Ni foam

Polarization curves:

Electrochemical performance comparison of  360 and 270 micron thick ElectroHy anodes with 1 Molar KOH at 60 deg C is given below.  This data demonstrates that increasing the anode electrode thickness to 360 microns is not changing the overall electrochemical performance. Catalytic componet for the anode electrode is composed of a proprietary composition and loading of NiFeOx.

Electrochemical performance comparison of  360 and 270 micron thick ElectroHy anodes with 0.2 Molar KOH at 60 deg C is given below.  This data demonstrates that increasing the anode electrode thickness to 360 microns is improving the overall electrochemical performance for low concentration of alkaline electrolytes. Catalytic componet for the anode electrode is composed of a proprietary composition and loading of NiFeOx.

Durability test results:

The following durability graph shows the comparison performance of 360 and 270 micron ElectroHy anodes and increasing the thickness of the anode electrode greatly increased the performance for the lower concentration electrolyte without impacting the performance at 1 Molar.  This durability test was carried out at a current density of 1A/cm² using 0.2M KOH at 60°C.

The following durability graph shows the longevity aspect of ElectroHy's proprietary NiFeOx as the anode catalyst for AEMWE applications. This longevity test continued for more than 3000 hrs with a degradation rate of ~2.79 microVolt/hr.  This durability test was carried out at a current density of 1A/cm² using 1M KOH at 60°C.

Instructions:

Both sides of the electrode are active, and there is no directionality or direction dependency. A guillotine trimmer or heavy-duty scissors can be used to cut down the electrodes to smaller sizes.  It is important that the sharp points present at the edges of the electrode after cutting are facing away from the anion exchange membrane in order to prevent damage to the membrane during the cell assembly.  Alkaline-resistant planar gasketing or O-rings should be used with this electrode during its operation with 1 Molar alkaline electrolytes.