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Title: Multi-principal elemental intermetallic nanoparticles synthesized via a disorder-to-order transition

Journal Article · · Science Advances
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [4]; ORCiD logo [4]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [6];  [1]; ORCiD logo [5];  [7]; ORCiD logo [7]; ORCiD logo [8]; ORCiD logo [1]; ORCiD logo [3] more »; ORCiD logo [1] « less
  1. Univ. of Maryland, College Park, MD (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Univ. of Delaware, Newark, DE (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  5. Dalhousie Univ., Halifax, NS (Canada)
  6. Argonne National Lab. (ANL), Lemont, IL (United States); Univ. of Saskatchewan, Saskatoon, SK (Canada). Canadian Light Source, Inc.
  7. Washington State Univ., Pullman, WA (United States)
  8. 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:
Brookhaven National Laboratory (BNL), Upton, NY (United States); University of Maryland, College Park, MD (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; Canadian Light Source; American Institute of Mathematics
Grant/Contract Number:
SC0012704; AC02-06CH11357
OSTI ID:
1873168
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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