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INFLUENCE OF PORE STRUCTURE ON HYDROGEN GAS EVOLUTION AT PLATINUM-ELECTRODESстатья
Информация о цитировании статьи получена из
Web of Science
Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
- Авторы: PODLOVCHENKO BI, MAKSIMOV YM, HEIDRICH HJ, AZARCHENKO TL, MULLER L.
- Журнал: SOVIET ELECTROCHEMISTRY
- Том: 27
- Номер: 7
- Год издания: 1991
- Первая страница: 761
- Последняя страница: 766
- Аннотация: Polarization curves and open-circuit potential decay curves for hydrogen gas evolution in 0.5 M H2SO4 and 1 M NaOH at smooth Pt, Pt/Pt, and Pt(sint) were compared. It was concluded that at Pt(sint) (where r(por) almost-equal-to 100 nm), H-2 evolution follows practically the same laws as at Pt/Pt (where r(por) = 1-2 nm), i.e., the pores do not "work" and the process is limited by mass transfer away from the electrode's external surface. Analogous trends were found for H-2 evolution at the three Pt electrode type in 1 M NaOH at eta less-than-or-equal-to 30 mV. Kinetic limitations start to appear at high values of eta in alkaline solutions.
- Добавил в систему: Подловченко Борис Иванович