Amorphous Nickel-Iron Oxide (NiFeOx) as Electrocatalysts for Alkaline Electrolyzer, 1 g/bottle, CAEEANiFeO

Nickel-Iron Oxides (NiFeOx) are among the most powerful and cost-effective electrocatalysts for alkaline environments. While they are closely related to NiFe-LDH (Layered Double Hydroxides), the "Ox" notation typically refers to the bulk oxide or amorphous mixed-oxide forms, which often serve as the stable "pre-catalyst" for high-performance industrial applications.

The primary application of NiFeOx is as the anode catalyst for the Oxygen Evolution Reaction (OER) in alkaline water electrolysis. It is currently the industry’s best non-precious alternative to Iridium Oxide (IrO2). (1) Anion Exchange Membrane (AEM) Electrolyzers: NiFeOx is the "gold standard" for AEM systems. It allows these electrolyzers to operate without any Platinum Group Metals (PGMs), drastically reducing stack costs while maintaining current densities of 1.0–3.0 A/cm². (2) Amorphous Advantage: Amorphous NiFeOx (often synthesized via sol-gel or electrodeposition) typically outperforms crystalline versions. The disordered structure provides more "bridge" and "edge" sites where Fe atoms can exert their maximum synergistic effect on Nickel. (3) Surface Reconstruction: During operation, the surface of NiFeOx naturally transforms into NiFeOOH (oxyhydroxide). This "in-situ" formed layer is the true active phase that facilitates the 4-electron transfer required to release oxygen.

Notes: Please try to store the amorphous NiFeOx powder in a dry place.

References: 

1. R. Suzuki, et al. Stability Investigation on NiFeOx Electrocatalysts for Oxygen Evolution During on and off Cycles in Harsh Alkaline Conditions, ChemElectroChem. 2025, 12, e202500081.
2. H. Xu, et al. Strain Effects and Crystalline-Amorphous Interface of NiFe-LDH@S-NiFeOx/NF with Heterogeneous Structure for Enhancing Electrocatalytic Oxygen Evolution Reaction of Water-Electrolysis, Small, 2025, 21, 2406071.