One-step plasma electrochemical synthesis and oxygen electrocatalysis of nanocomposite of few-layer graphene structures with cobalt oxides

Kotkin, A.S.; Kochergin, V.K.; Kabachkov, E.N.; Shulga, Y.M.; Lobach, A.S.; Manzhos, R.A.; Krivenko, A.G.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 ноября 2020 г.

Авторы: Kotkin A.S., Kochergin V.K., Kabachkov E.N., Shulga Y.M., Lobach A.S., Manzhos R.A., Krivenko A.G.
Журнал: Materials Today Energy
Том: 17
Год издания: 2020
Издательство: Elsevier Ltd
Местоположение издательства: London
Номер статьи: 100459
DOI: 10.1016/j.mtener.2020.100459
Аннотация: One-step synthesis of the nanocomposite of few-layer graphene structures with cobalt oxides was realized using the method of electrochemical exfoliation of graphite. The exfoliation process was carried out in alternating anodic-cathodic plasma mode in 1 M Na2SO4 + 0.01 M CoSO4 solution. Obtained nanocomposite was characterized by scanning and transmission electron microscopy, X-ray photoelectron and Raman spectroscopy. Besides, a catalytic activity of the nanocomposite of few-layer graphene structures with cobalt oxides towards the oxygen reduction reaction was assessed, and a considerable decrease in the oxygen reduction overpotential and an electron transfer number of ca. 3.6 were demonstrated. The observed effect was found to be caused by 40 wt% of cobalt (II) and (III) oxides in the nanocomposite.
Добавил в систему: Кочергин Валерий Константинович

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One-step plasma electrochemical synthesis and oxygen electrocatalysis of nanocomposite of few-layer graphene structures with cobalt oxidesстатья

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