CMI researchers at Idaho National Laboratory conducted the research for this highlight
Two rare earth alloys (NdFe and SmCox) were prepared from the respective mixed oxide precursors (Nd2O3+Fe2O3 and Sm2O3+CoO) using a green technology.
- Electrochemical reduction process resulted in the generation of oxygen, and not the oxides of carbon, as the anode gas.
- Two monolithic anode materials (iridium, Ir, and ruthenium, Ru) were used. Both showed no signs of degradation in the extreme environment (CaCl2 + 1-5% CaO + 800o C+ oxidizing atmosphere). Related efforts with Ir/Ru coated anodes underway.
- The technology [Robust Anodes for Electrochemical Systems in Extreme Environments (Robust Monolithic Anode)] is listed as one of the finalists in the 2022 R&D 100 Awards.
Significance and Impact
Cost-effective preparation of rare earth-transition metal alloys.
Hub Target Addressed
Development of a green as well as inexpensive manufacturing option to produce metallic products (proof-of-the-concept was established).