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Enhancing Efficiency of Nitrate Reduction to Ammonia by Fe and Co Nanoparticle-Based Bimetallic Electrocatalystстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или ScopusДата последнего поиска статьи во внешних источниках: 10 июля 2024 г.
- Авторы: Kuznetsova Irina I., Lebedeva Olga, Kultin Dmitry, Mashkin Mikhail, Kalmykov Konstantin, Kustov Leonid M.
- Журнал: International Journal of Molecular Sciences
- Том: 25
- Номер: 13
- Год издания: 2024
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Первая страница: 7089
- Номер статьи: 7089
- DOI: 10.3390/ijms25137089
- Аннотация: The green and sustainable electrocatalytic conversion of nitrogen-containing compounds to ammonia is currently in high demand in order to replace the eco-unfriendly Haber–Bosch process. Model catalysts for the nitrate reduction reaction were obtained by electrodeposition of metal Co, Fe, and bimetallic Fe/Co nanoparticles from aqueous solutions onto a graphite substrate. The samples were characterized by the following methods: SEM, XRD, XPS, UV–vis spectroscopy, cyclic (and linear) voltammetry, chronoamperometry, and electrochemical impedance spectroscopy. In addition, the determination of the electrochemically active surface was also performed for all electrocatalysts. The best electrocatalyst was a sample containing Fe-nanoparticles on the layer of Co-nanoparticles, which showed a Faradaic efficiency of 58.2% (E = −0.785 V vs. RHE) at an ammonia yield rate of 14.6 μmol h−1 cm−2 (at ambient condition). An opinion was expressed to elucidate the mechanism of coordinated electrocatalytic action of a bimetallic electrocatalyst. This work can serve primarily as a starting point for future investigations on electrocatalytic conversion reactions to ammonia using model catalysts of the proposed type.
- Добавил в систему: Культин Дмитрий Юрьевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | ijms-25-07089_bmavyRf.pdf | 3,1 МБ | 16 августа 2024 [dkultin] | |
| 2. | Экспертное_заключение_IJMS.pdf | Экспертное_заключение_IJMS.pdf | 274,1 КБ | 16 августа 2024 [dkultin] |