Electrodeposited P‐Doped CuNi Alloy from Deep Eutectic Solvent for Efficient and Selective Nitrate‐to‐Ammonia Electroreduction DOI Open Access
Shuling Liu, Yangsen Cao, Lin Yang

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Electrochemical nitrate reduction reaction (NO3RR) offers a promising alternative for ammonia production using electricity generated from renewable energy sources. Active electrocatalysts with high selectivity and yield are required to selectively catalyze NO3RR ammonia. Here, P-doped Cu0.51Ni0.49 alloy thin films electrodeposited deep eutectic solvent of choline chloride-ethylene glycol (ChCl/EG). The P-Cu0.51Ni0.49 produces 1616.94 µg h-1 cm-2 at -0.55 VRHE (V versus reversible hydrogen electrode), Faradaic efficiency 98.38% 97.84% -0.25 VRHE, much better than the P-Ni P-Cu prepared under similar condition. rate, originated number electrochemically active sites more facile kinetics. Mechanistic study density functional theory calculation proves that exhibits higher conductivity NO3 - adsorption compared P-Cu, induced by electron interaction. Characterizations after cycling show crystallinity decreases, content divalent metal ions increases surface. is an stable material electrocatalyze in neutral aqueous solutions.

Language: Английский

Electrodeposited P‐Doped CuNi Alloy from Deep Eutectic Solvent for Efficient and Selective Nitrate‐to‐Ammonia Electroreduction DOI Open Access
Shuling Liu, Yangsen Cao, Lin Yang

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Electrochemical nitrate reduction reaction (NO3RR) offers a promising alternative for ammonia production using electricity generated from renewable energy sources. Active electrocatalysts with high selectivity and yield are required to selectively catalyze NO3RR ammonia. Here, P-doped Cu0.51Ni0.49 alloy thin films electrodeposited deep eutectic solvent of choline chloride-ethylene glycol (ChCl/EG). The P-Cu0.51Ni0.49 produces 1616.94 µg h-1 cm-2 at -0.55 VRHE (V versus reversible hydrogen electrode), Faradaic efficiency 98.38% 97.84% -0.25 VRHE, much better than the P-Ni P-Cu prepared under similar condition. rate, originated number electrochemically active sites more facile kinetics. Mechanistic study density functional theory calculation proves that exhibits higher conductivity NO3 - adsorption compared P-Cu, induced by electron interaction. Characterizations after cycling show crystallinity decreases, content divalent metal ions increases surface. is an stable material electrocatalyze in neutral aqueous solutions.

Language: Английский

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