An Effective PtNi/CNTs Catalyst for the Hydrogen Oxidation Reaction in an Alkaline Electrolyte

Bogdanovskayaa, V.A.; Vernigor, I.E.; Radina, M.V.; Sinitsyn, P.A.; Andreev, V.N.; Nikol’skaya, N.F.

Авторы: Bogdanovskayaa V.A., Vernigor I.E., Radina M.V., Sinitsyn P.A., Andreev V.N., Nikol’skaya N.F.
Журнал: Protection of Metals and Physical Chemistry of Surfaces
Том: 59
Номер: 6
Год издания: 2023
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 1165
Последняя страница: 1175
DOI: 10.1134/S2070205123701332
Аннотация: PtNi catalysts on carbon nanotubes (CNTs) subjected to preliminary treatment are synthesizedand studied in the hydrogen oxidation reaction (HOR) in an alkaline electrolyte. A comparison of the structural and morphological and electrochemical characteristics of monoplatinum (Pt/CNTs) and bimetallic(PtNi/CNTs) catalysts in the HOR at equal concentrations of platinum and the same CNTs is conducted. Itis found that catalysts synthesized on nanotubes functionalized in an alkali (CNTsNaOH) are significantlysuperior to PtNi catalysts synthesized on CNTs doped with nitrogen and monoplatinum catalyst in terms ofstability and activity in the HOR. A PtNi/CNTsNaOH catalyst with a weight concentration of platinum of 10%manifests the highest activity in the HOR at a Pt : Ni ratio of 1 : 1. The main parameters providing high characteristics of the bimetallic system are the presence of active sites for the fixation of the metal phase on theCNTsNaOH, concentration of platinum on the surface of the catalyst, and ratio of the metals.
Добавил в систему: Вернигор Инна Евгеньевна

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An Effective PtNi/CNTs Catalyst for the Hydrogen Oxidation Reaction in an Alkaline Electrolyteстатья

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