In‐tandem Electrochemical Reduction of Nitrate to Ammonia on Ultrathin‐Sheet‐Assembled Iron‐Nickel Alloy Nanoflowers

Abstract The development of alternative routes for ammonia (NH 3 ) synthesis with high Faradaic efficiency (FE) is crucial for energy conservation and to achieve zero carbon emissions. Electrocatalytic nitrate (NO 3 − ) reduction to NH 3 (e‐NO 3 RRA) is a promising alternative to the energy‐intensive, fossil‐fuel‐driven Haber–Bosch process. The implementation of this innovative NH 3 synthesis technique requires an efficient electrocatalyst and in‐depth mechanistic understanding of e‐NO 3 RRA. In this study, we developed an ultrathin sheet (μm) iron–nickel nanoflower alloy through electrodeposition and used it for e‐NO 3 RRA under alkaline conditions. The prepared Fe−Ni alloy exhibited an FE of 97.28±1.36 % at…

• CU
  City University of Hong Kong

  Award: 11302623
• NN
  National Natural Science Foundation of China

  Award: 22109133
• NO
  National Outstanding Youth Science Fund Project of National Natural Science Foundation of China

  Award: 22109133