Multi-principal elemental intermetallic nanoparticles synthesized via a disorder-to-order transition
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- Univ. of Maryland, College Park, MD (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Univ. of Delaware, Newark, DE (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Dalhousie Univ., Halifax, NS (Canada)
- Argonne National Lab. (ANL), Lemont, IL (United States); Univ. of Saskatchewan, Saskatoon, SK (Canada). Canadian Light Source, Inc.
- Washington State Univ., Pullman, WA (United States)
- Univ. of California, San Diego, La Jolla, CA (United States)
Nanoscale multi-principal element intermetallics (MPEIs) may provide a broad and tunable compositional space of active, high–surface area materials with potential applications such as catalysis and magnetics. However, MPEI nanoparticles are challenging to fabricate because of the tendency of the particles to grow/agglomerate or phase-separated during annealing. Here, we demonstrate a disorder-to-order phase transition approach that enables the synthesis of ultrasmall (4 to 5 nm) and stable MPEI nanoparticles (up to eight elements). We apply just 5 min of Joule heating to promote the phase transition of the nanoparticles into L10 intermetallic structure, which is then preserved by rapidly cooling. This disorder-to-order transition results in phase-stable nanoscale MPEIs with compositions (e.g., PtPdAuFeCoNiCuSn), which have not been previously attained by traditional synthetic methods. This synthesis strategy offers a new paradigm for developing previously unexplored MPEI nanoparticles by accessing a nanoscale-size regime and novel compositions with potentially broad applications.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); University of Maryland, College Park, MD (United States)
- Sponsoring Organization:
- American Institute of Mathematics; Canadian Light Source; National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
- Grant/Contract Number:
- AC02-06CH11357; SC0012704
- OSTI ID:
- 1873168
- Alternate ID(s):
- OSTI ID: 1894946
- Report Number(s):
- BNL-223089-2022-JAAM
- Journal Information:
- Science Advances, Journal Name: Science Advances Journal Issue: 4 Vol. 8; ISSN 2375-2548
- Publisher:
- AAASCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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