Synthesis of high-entropy alloy nanoparticles on supports by the fast moving bed pyrolysis

Abstract High-entropy alloy nanoparticles (HEA-NPs) are important class of materials with significant technological potential. However, the strategies for synthesizing uniformly dispersed HEA-NPs on granular supports such as carbon materials, γ-Al 2 O 3 , and zeolite, which is vital to their practical applications, are largely unexplored. Herein, we present a fast moving bed pyrolysis strategy to immobilize HEA-NPs on granular supports with a narrow size distribution of 2 nm up to denary (MnCoNiCuRhPdSnIrPtAu) HEA-NPs at 923 K. Fast moving bed pyrolysis strategy ensures the mixed metal precursors rapidly and simultaneously pyrolyzed at high temperatures, resulting in nuclei with a small size. The…

• NS
  National Science Foundation

  Awards: DE-AC02-06CH11357, DMR-1809439, 1809439
• UD
  U.S. Department of Energy

  Awards: AC02-06CH11357, DE-AC02, 06CH11357, DE-AC02-06CH11357, DE-AC02-
• UO
  University of Chicago

  Award: DE-AC02-06CH11357
• NN
  National Natural Science Foundation of China

  Awards: No. 21776248, 21776248, DE-AC02-06CH11357, 21676246
• OO
  Office of Science

  Awards: DE-AC02-06CH11357, DE-AC02, 06CH11357, AC02-06CH11357
• OO
  Office of Energy Efficiency and Renewable Energy

  Awards: AC02-06CH11357, DE-AC02-06CH11357
• FR
  Fundamental Research Funds for the Central Universities
• DO
  Division of Materials Research

  Awards: DE-AC02-06CH11357, 1809439, DMR-1809439
• OO
  Office of Energy Efficiency
• AN
  Argonne National Laboratory

  Awards: DE-AC02, 06CH11357, AC02-06CH11357
• NS
  Natural Science Foundation of Zhejiang Province

  Awards: LR17B060003, No. LR17B060003