Bifunctional CuSi Intermetallic Catalyst Shows Exceptional Efficiency in the Electrochemical Conversion of NO2− to NH3

Bifunctional CuSi Intermetallic Catalyst Shows Exceptional Efficiency in the Electrochemical Conversion of NO2− to NH3 Full article

Journal

Sustainable Chemistry
ISSN: 2673-4079

Output data

Year: 2026, Volume: 7, Number: 3, Article number : 44, Pages count : DOI: 10.3390/suschem7030044

Authors

Kuznetsova Irina ¹ , Kultin Dmitry ¹ , Lebedeva Olga ¹ , Nesterenko Sergey ¹ , Kustov Leonid ^1,2

Affiliations

1	Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
2	N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia

The ordered copper-based intermetallic compound Cu0.83Si0.17 is capable of enhancing the catalytic efficiency of the in-demand green process of the electrochemical reaction of ammonia synthesis from nitrite in comparison with a pure copper metal catalyst, which is well known and studied. The Faradaic efficiency reaches 99% with its maximum at a potential of −0.525 V (RHE), and even at low potentials (−0.1 V) it does not fall below 90%, with an NH3 yield rate of 132.3 µmol h−1 cm−2. In addition, the catalyst demonstrated high selectivity and stability.

Kuznetsova I. , Kultin D. , Lebedeva O. , Nesterenko S. , Kustov L.
Bifunctional CuSi Intermetallic Catalyst Shows Exceptional Efficiency in the Electrochemical Conversion of NO2− to NH3
Sustainable Chemistry. 2026. V.7. N3. 44 . DOI: 10.3390/suschem7030044 OpenAlex

Submitted:	Jun 20, 2026
Published online:	Aug 10, 2026

≡ OpenAlex:

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