Cold-sprayed oxide anodes for Nd molten salt electrolysis

As-fabricated oxide-based anodes
As-fabricated oxide-based anodes

  

CMI researchers at Case Western Reserve University conducted the for this highlight

Innovation 
Fabrication of robust, oxide-based anodes by cold spraying Fe₂O₃, NiO, and ZnO powders onto graphite substrates. Novel approach eliminates high-temperature sintering and is one of first applications of cold spray for rare-earth molten salt electrolysis.

Achievement  
XRD analysis confirms that the Fe₂O₃, NiO, and ZnO phases remained stable after cold spray deposition, indicating preservation of the oxide structure. This demonstrates the feasibility of producing phase-pure oxide coatings with strong adhesion to graphite substrates.

Significance and Impact  
Innovation enables scalable fabrication of durable anodes, laying foundation for energy-efficient and continuous neodymium production and critical material supply.

Hub Goal Addressed 
Energy-efficient and continuous Nd metal production.

line graph
X-ray diffraction patterns of anodes and bulk oxides demonstrating retention of bulk structures.