Highlights
- Scientists at Georgia Tech confirmed the first +5 oxidation state in a lanthanide element, expanding rare earth element capabilities.
- The breakthrough could transform rare earth separation, recycling, and use in advanced electronics and quantum technologies.
- Current research stage suggests potential commercial applications in 5-10 years.
- Significant strategic implications for US and global technology supply chains.
In a major scientific breakthrough with wide implications for the rare earth supply chain, researchers at the Georgia Institute of Technology have discovered a new oxidation state for the rare earth element praseodymium, offering a potential path to revolutionize the separation, recycling, and utilization of these critical minerals in advanced technologies.
Published in Nature Chemistry, the study—Praseodymium in the Formal +5 Oxidation State— (opens in a new tab)confirms for the first time a +5 oxidation state in a lanthanide element. Until now, all commercial use of rare earths has relied on the +3 state, which limits the range of their magnetic and optical properties. The new oxidation state could unlock novel behaviors essential to next-generation electronics, quantum technologies, and cleaner processing of rare earth elements.
“This is like discovering a new element,” said lead author Dr. Henry “Pete” La Pierre (opens in a new tab), associate professor of chemistry at Georgia Tech. “Each oxidation state behaves differently, and this one gives us a roadmap for new possibilities—including better separation techniques and materials performance.”
Why It Matters:
Lanthanides—or rare earth elements (REEs)—are notoriously hard to separate due to their chemical similarities. This bottleneck creates inefficiencies, waste, and strategic vulnerabilities, particularly for the U.S. and its allies. The ability to stabilize new oxidation states could open the door to novel separation technologies, reducing environmental damage and reliance on foreign-controlled refining.
How Far From Commercialization?
This breakthrough remains in the fundamental science stage. Scaling it into industrial application—for mining, refining, or device manufacturing—could take 5–10 years. However, it marks a critical step toward diversifying the processing and potentially the reuse of rare earths.
La Pierre’s team, working with researchers at the University of Iowa and Washington State University, is now focused on leveraging oxidation chemistry to design more selective and efficient REE separation tools—possibly enabling cheaper and cleaner recycling technologies.
Rare Earth Exchanges Innovation Impact Meter™ For Nature Chemistry Study
| Category | Assessment |
| Discovery Stage | Basic research (lab-based) |
| Potential Supply Chain Impact | High (separation, recycling, use) |
| Time to Commercial Use | 5–10 years (requires engineering) |
| Strategic Relevance | Very high (US/EU rare earth access) |
| Overall Readiness Rating: | Scientific Breakthrough, Commercial Watchlist™ |
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