Metal-Halide Perovskites as Innovative and Cost-Effective Fluoride Salt Waste Forms

Default ARPA-E Project Image

Program:
ONWARDS
Award:
$607,504
Location:
Troy, New York
Status:
ACTIVE
Project Term:
04/22/2022 - 10/21/2024
Website:

Technology Description:

Rensselaer Polytechnic Institute (RPI) will explore using inorganic metal halide perovskites (MHPs) as advanced salt waste forms to immobilize fluoride-based salt wastes from advanced reactors. The RPI team will demonstrate low-temperature wet-chemistry processes to effectively separate fluoride salt wastes at temperatures lower than 200oC and reduce the waste volume of alkali and alkaline earth fluoride salt waste by 90 l.%. The second technical goal is to separate useful lithium fluoride from the fluoride salt wastes with a yield over 95%. The scalability of a low-temperature wet-chemistry process in synthesizing large quantity MHPs up to 50 grams at the lab scale will also be targeted. Effective management of fluoride salt wastes are critical for the sustainable development of advanced nuclear fuel cycles and future nuclear technologies. The recycling of valuable lithium from salt waste is also significant to recover the indispensable and critical resource in large demands for advanced reactors and renewable energy applications.

Potential Impact:

By identifying and addressing challenges at the back end of the fuel cycle before the deployment of future AR technologies, ONWARDS will:

Security:

Support the growth of advanced nuclear energy with safe and sustainable domestic fuel stocks.

Environment:

Play a vital role in significantly reducing GHG emissions, proactively mitigate the disposal impact of AR UNF with integrated non-proliferation safeguards, and provide transformative solutions to improve the management and disposal of radioactive waste and UNF.

Economy:

Complement ARPA-E’s existing nuclear energy research portfolio, such as the MEITNER and GEMINA programs in AR R&D, further ensuring the commercial viability of innovative new ARs.

Contact

ARPA-E Program Director:
Dr. Robert Ledoux
Project Contact:
Prof. Jie Lian
Press and General Inquiries Email:
ARPA-E-Comms@hq.doe.gov
Project Contact Email:
lianj@rpi.edu

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• Idaho National Laboratory (INL) - Traveling Molten Zone Refining Process Development for Innovative Fuel Cycle Solutions
• Oklo - Enabling the Near Term Commercialization of an Electrorefining Facility to Close the Metal Fuel Cycle
• Orano Federal Services - Off-Gas Treatment Process for Conditioning and Recycling Facilities
• Rensselaer Polytechnic Institute (RPI) - Metal-Halide Perovskites as Innovative and Cost-Effective Fluoride Salt Waste Forms
• Rutgers University - Pioneering a Cermet Waste Form for Disposal of Waste Streams from Advanced Reactors (PACE-FORWARD)
• Stony Brook University - MATRICY: Matrix Engineered TRISO Compacts Enabling Advanced Reactor Fuel Cycles
• TerraPower - Chloride-Based Volatility for Waste Reduction and/or Reuse of Metallic-, Oxide- and Salt-Based Reactor Fuels

Release Date:
05/19/2021