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Electroreduction of nitrate and nitrite anions on platinum metals: A model process for elucidating the nature of the passivation by hydrogen adsorptionстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
- Авторы: Petrii O.A., Safonova T.Ya
- Журнал: Journal of Electroanalytical Chemistry
- Том: 331
- Номер: 1-2
- Год издания: 1992
- Издательство: Elsevier Sequoia
- Местоположение издательства: Switzerland
- Первая страница: 897
- Последняя страница: 912
- Аннотация: A study of the dependence of the electroreduction of NO 3 - anions on a platinized platinum electrode on the solution pH, the concentration of NO 3 - ions and the adsorption of Cs +, La 3+ and Cd 2+ cations and Cu adatoms was performed with the aim of elucidating the mechanism of the process and, in particular, the nature of the extremal character of the rate dependence on potential. For comparison, the stationary and potentiodynamic polarization curves for the electroreduction of NO 2 - anions on platinum and NO 3 - anions on palladium and rhodium electrodeposits were measured. The behavior of NO 3 - and NO 2 - anions on platinum was similar, and an increase in the electroreduction rate of NO 3 - anions during the transition from Pt and Pd to Rh was observed. The latter behavior was explained by assuming that the metal-nitrogen bond was stronger in the case of rhodium. Possible reasons for the passivation of cathodic processes on platinum when complete hydrogen surface coverage is approached are discussed. ? 1992.
- Добавил в систему: Петрий Олег Александрович