Heterophase fcc‐hcp‐fcc High‐Entropy Alloy Nanomaterials with Tailored Electron Divergence for Selective Ammonia Electrosynthesis

ABSTRACT Electrocatalytic nitrate reduction reaction provides a broad prospect for developing green electrochemical ammonia production and efficient treatment of industrial wastewater rich in nitrate, but poses a challenge to the high activity and stability of electrocatalysts. Herein, we report the versatile and scalable one‐pot solvothermal synthesis of a series of RuFeMMnMo (M═CoNi, Co, and Ni) high‐entropy alloy (HEA) nanomaterials, possessing a unique face‐centered cubic‐hexagonal close‐packed‐face‐centered cubic ( fcc‐hcp‐fcc ) heterophase. The highly random distribution of multiple metal components and the tunable diversity of metal atomic arrangements can be realized simultaneously. Significantly,…

• CU
  City University of Hong Kong

  Awards: 9610663, 9680301, 7020103, 7006007, 9610480
• NN
  National Natural Science Foundation of China

  Award: 22175148
• SS
  Shenzhen Science and Technology Innovation Program

  Awards: JCYJ20220530140815035, JCYJ20220531090807017