Production and electrocatalytic activity of graphene-phosphorene structures decorated with cobalt atoms

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Resumo

Nitrogen-doped few-layer graphene structures were synthesized by the plasma-assisted electrochemical exfoliation of graphite and were used to prepare composites with phosphorene structures obtained as a result of ultrasonic exfoliation of a black phosphorus porous electrode with cobalt preliminarily deposited on it. The catalytic activity towards hydrogen evolution reaction of few-layer graphene and phosphorene structures, as well as their mixtures was studied, and mixed electrocatalysts was shown to demonstrate the highest activity towards hydrogen evolution reaction.

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Sobre autores

R. Manzhos

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences

Email: rmanzhos@yandex.ru
Rússia, Chernogolovka, Moscow region

N. Komarova

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences

Email: rmanzhos@yandex.ru
Rússia, Chernogolovka, Moscow region

A. Kotkin

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences

Email: rmanzhos@yandex.ru
Rússia, Chernogolovka, Moscow region

V. Kochergin

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences

Email: rmanzhos@yandex.ru
Rússia, Chernogolovka, Moscow region

T. Prikhodchenko

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences

Email: rmanzhos@yandex.ru
Rússia, Chernogolovka, Moscow region

A. Krivenko

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences

Autor responsável pela correspondência
Email: rmanzhos@yandex.ru
Rússia, Chernogolovka, Moscow region

Bibliografia

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2. Fig. 1. SEM images of N-MGS (a) and Co-FS (b) samples.

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3. Fig. 2. High-resolution P 2p spectrum of Co-FS sample.

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4. Fig. 3. Hydrogen evolution reaction on the initial glassy carbon (1), N-MGS with different loading, mg/cm2: 0.1 – 2, 0.2 – 2’, 0.4 – 2’’, Co-FS (3) and mixed composites with different ratios of the initial suspensions of Co-FS and N-MGS: 8: 1 – 4, 7: 2 – 5, 5: 4 – 6. The inset shows the corresponding Tafel dependences.

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