Highly selective electrocatalytic reduction of nitrate to ammonia over a copper–cobalt bimetallic catalyst DOI Creative Commons

Daopeng Li,

Shengbo Zhang,

Zhixian Mao

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(12), P. 9461 - 9466

Published: Jan. 1, 2025

The electrocatalytic nitrate reduction reaction (NitRR) is a promising alternative to the traditional Haber-Bosch process. However, competitive hydrogen evolution results in poor NH3 selectivity (S NH3). Here, Cu-Co bimetallic catalyst supported on biomass-derived porous carbon (Cu-Co/BPC) designed and synthesized. Interestingly, presents high yield rate of 9114.1 ± 244.8 μg h-1 cm-2 at -1.4 V (vs. RHE) faradaic efficiency (FE) 84.5 1.6% -1.0 RHE). Notably, S Cu-Co/BPC kept above 94.2% under broad range from RHE), indicating NitRR-to-NH3 Cu-Co/BPC. combination situ characterization experimental indicates that electron transfer occurs between Cu Co, many active sites are generated for adsorption activation N[double bond, length as m-dash]O double bonds, hydrogenation reactions occur with adjacent H protons improve NH3.

Language: Английский

Highly selective electrocatalytic reduction of nitrate to ammonia over a copper–cobalt bimetallic catalyst DOI Creative Commons

Daopeng Li,

Shengbo Zhang,

Zhixian Mao

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(12), P. 9461 - 9466

Published: Jan. 1, 2025

The electrocatalytic nitrate reduction reaction (NitRR) is a promising alternative to the traditional Haber-Bosch process. However, competitive hydrogen evolution results in poor NH3 selectivity (S NH3). Here, Cu-Co bimetallic catalyst supported on biomass-derived porous carbon (Cu-Co/BPC) designed and synthesized. Interestingly, presents high yield rate of 9114.1 ± 244.8 μg h-1 cm-2 at -1.4 V (vs. RHE) faradaic efficiency (FE) 84.5 1.6% -1.0 RHE). Notably, S Cu-Co/BPC kept above 94.2% under broad range from RHE), indicating NitRR-to-NH3 Cu-Co/BPC. combination situ characterization experimental indicates that electron transfer occurs between Cu Co, many active sites are generated for adsorption activation N[double bond, length as m-dash]O double bonds, hydrogenation reactions occur with adjacent H protons improve NH3.

Language: Английский

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