articleJournal of the American Chemical SocietyAug 23, 2024Closed access

Homogeneously Mixed Cu–Co Bimetallic Catalyst Derived from Hydroxy Double Salt for Industrial-Level High-Rate Nitrate-to-Ammonia Electrosynthesis

WJWonsik JangDODongrak OhJLJin‐Young LeeJKJongkyoung KimJEJesse E. Matthews

Ulsan National Institute of Science and Technology · SLAC National Accelerator Laboratory · +1 more institution

PubMed
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Abstract

Electrocatalytic nitrate reduction reaction (NO3RR) presents an innovative approach for sustainable NH3 production. However, selective NH3 production is hindered by the multiple intermediates involved in the NO3RR process and the competitive hydrogen evolution reaction. Hence, the development of highly efficient NO3RR catalysts is paramount. Herein, we report highly efficient bimetallic catalysts derived from hydroxy double salt (HDS). Under NO3RR conditions, Cu1Co1-HDS undergoes in situ reconstruction, forming nanocomposites of homogeneously distributed metallic Cu0 and Co(OH)2. Reconstruction-induced Cu0 rapidly converts NO3– to NO2–, which is further hydrogenated to NH3 by Co(OH)2. Homogeneously mixed Cu…

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118
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100%
References
75
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Authors

14

Topics & keywords

Topics
Keywords
  • Chemistry
  • Electrosynthesis
  • Catalysis
  • Bimetallic strip
  • Ammonia production
  • Yield (engineering)
  • Ammonia
  • Nitrate
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