Efficient Electrosynthesis of Urea over Single‐Atom Alloy with Electronic Metal Support Interaction

Abstract Urea electrosynthesis from carbon dioxide (CO 2 ) and nitrate (NO 3 − ) is an alternative approach to traditional energy‐intensive urea synthesis technology. Herein, we report a CuAu single‐atom alloy (SAA) with electronic metal support interaction (EMSI), achieving a high urea yield rate of 813.6 μg h −1 mg cat −1 at −0.94 V versus reversible hydrogen electrode (vs. RHE) and a Faradaic efficiency (FE) of 45.2 % at −0.74 V vs. RHE. In situ experiments and theoretical calculations demonstrated that single‐atom Cu sites modulate the adsorption behavior of intermediate species. Bimetallic sites synergistically accelerate C−N bond formation through spontaneous coupling of *CO and *NO to form *ONCO as key…

• NN
  National Natural Science Foundation of China

  Awards: 22278023, 22303004, 22208010
• NS
  Natural Science Foundation of Beijing Municipality

  Award: 2222015