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Vanadium Oxynitride as a Promising Electrocatalyst for Selective Reduction of Nitrogenстатья
- Авторы: Korsakova V.V., Nikitina V.A.
- Сборник: Образование и наука для устойчивого развития: XV Международная научно-практическая конференция: материалы конференции: в 2 ч. – М.: РХТУ им. Д. И. Менделеева, 2023
- Год издания: 2023
- Издательство: МИИ
- Местоположение издательства: Москва
- Аннотация: Transition metal nitrides and oxynitrides are promising electrocatalyst for the electrochemical nitrogen reduction reaction (NRR) [1]. In particular, several recent publications reported on the exceptional activity in reducing N2 to ammonia for vanadium nitride, with the active centers being identified as oxynitride phase on the surface of the bulk VN particles [2]. High activity of nitride and oxynitride phases is frequently attributed to the nitrogen vacancy-mediated NRR mechanism (Mars−van Krevelen mechanism). Still, currently, faradaic efficiencies of NH3 production via NRR are extremely low (<10%), which is mostly due to the high overpotentials needed to activate the triple bond in the N2 molecule and thus the unfavorable competition with the hydrogen evolution reaction (HER), which requires lower overpotentials.
- Добавил в систему: Корсакова Виолетта Вячеславовна