Industrial‐current Ammonia Synthesis by Polarized Cuprous Cyanamide Coupled to Valorization of Glycerol at 4,000 mA cm −2

Abstract The electrocatalytic nitrate reduction (NO 3 RR) holds significance in both NH 3 synthesis and nitrate contamination remediation. However, achieving industrial‐scale current and high stability in membrane electrode assembly (MEA) electrolyzer remains challenging due to inherent high full‐cell voltage for sluggish NO 3 RR and water oxidation. Here, Cu 2 NCN with positive surface electrostatic potential V S (r) is applied as highly efficient NO 3 RR electrocatalysts to achieve industrial‐current and low‐voltage stable NH 3 production in MEA electrolyzer with coupled anodic glycerol oxidation. This paired electro‐refinery (PER) system reaches 4000 mA cm −2 at 2.52 V and remains stable at industrial‐level…

• NN
  National Natural Science Foundation of China

  Awards: 52311530113, 52472231
• SA
  Science and Technology Commission of Shanghai Municipality

  Award: 22DZ1205600
• V
  Vetenskapsrådet

  Award: 2021‐05881
• NS
  Natural Sciences and Engineering Research Council of Canada

  Award: DG RGPIN‐2020‐06675
• FR
  Fundamental Research Funds for the Central Universities

  Award: DUT22RC(3)050
• PO
  Program of Shanghai Academic Research Leader

  Award: 22XD1424300