A General Synthetic Method for High-Entropy Alloy Subnanometer Ribbons

High-entropy alloys (HEAs) are attracting intensive attention due to their broad compositional tunability and interesting catalytic properties. However, precisely shaping the HEAs into suprathin low-dimensional nanostructures for achieving diverse applications remains an enormous challenge owing to their intrinsic thermodynamic instability. Herein we propose a new and general low-temperature method for incorporating up to eight metallic elements into one single-phase subnanometer ribbon to achieve the thinnest HEA metal materials in the world. We experimentally demonstrate that synthetic processes for suprathin HEA subnanometer ribbons (SNRs) include (1) different metal atom nucleation via galvanic exchange…

• T
  Tencent
• NN
  National Natural Science Foundation of China

  Awards: 51671003, 21771156, N_PolyU502/21, 52025133
• MO
  Ministry of Science and Technology of the People's Republic of China

  Award: 2021YFA1501000
• CP
  China Postdoctoral Science Foundation

  Award: 2019M660290
• HK
  Hong Kong Polytechnic University

  Award: 1-ZE2V
• NS
  National Science Fund for Distinguished Young Scholars

  Award: 52025133