Electrochemical synthesis of a composite of few-layer graphene structures with PdNi alloy nanoparticles and its electrocatalytic activity in the oxidation of methanol

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Nanocomposites of few-layer graphene structures with PdNi alloy nanoparticles were synthesized using the electrochemical dispersion method. The chemical modification of composites was shown to lead to a significant increase in their electrocatalytic activity towards the methanol oxidation reaction.

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作者简介

V. Kochergin

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

Email: rmanzhos@yandex.ru
俄罗斯联邦, Chernogolovka, Moscow oblast

N. Komarova

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

Email: rmanzhos@yandex.ru
俄罗斯联邦, Chernogolovka, Moscow oblast

A. Kotkin

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

Email: rmanzhos@yandex.ru
俄罗斯联邦, Chernogolovka, Moscow oblast

I. Khodos

Institute of Microelectronics Technology and High Purity Materials of Russian Academy of Sciences

Email: rmanzhos@yandex.ru
俄罗斯联邦, Chernogolovka, Moscow oblast

R. Manzhos

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

编辑信件的主要联系方式.
Email: rmanzhos@yandex.ru
俄罗斯联邦, Chernogolovka, Moscow oblast

A. Krivenko

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

Email: rmanzhos@yandex.ru
俄罗斯联邦, Chernogolovka, Moscow oblast

参考

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  3. Tong, Y., Yan, X., Liang, J., and Dou, S. X., Metal‐based electrocatalysts for methanol electro‐oxidation: Progress, opportunities, and challenges, Small, 2021, vol. 17, p. 1904126.
  4. Burhan, H., Cellat, K., Yılmaz, G., and Şen, F., Chapter 3 - Direct methanol fuel cells (DMFCs), In: Akay, R.G., Yurtcan, A.B. editors, Direct liq. Fuel cells. Academic Press, 2021, p. 71.
  5. Yang, H., Geng, L., Zhang, Y., Chang, G., Zhang, Z., Liu, X., Lei, M., and He, Y., Graphene-templated synthesis of palladium nanoplates as novel electrocatalyst for direct methanol fuel cell, Appl. Surf. Sci., 2018, vol. 466, p. 385.
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  7. Calderón, J.C., Nieto-Monge, M.J., Pérez-Rodríguez, S., Pardo, J.I., Moliner, R., and Lázaro, M.J., Palladium–nickel catalysts supported on different chemically-treated carbon blacks for methanol oxidation in alkaline media, Int. J. Hydrogen Energy, 2016, vol. 41, p. 19556.
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  12. Кривенко, А.Г., Манжос, Р.А., Кочергин, В.К., Малков, Г.В., Тарасов, А.Е., Пивень, Н.П. Плазмоэлектрохимический синтез малослойных графеновых структур для модификации эпоксидного связующего. Химия высоких энергий. 2019. Т. 53. С. 243. [Krivenko, A.G., Manzhos, R.A., Kochergin, V.K., Malkov, G.V., Tarasov, A.E., and Piven, N.P., Plasma electrochemical synthesis of few-layer graphene structures for modification of epoxy binder, High Energy Chem., 2019, vol. 53, p. 254.]
  13. Kochergin, V.K., Manzhos, R.A., Khodos, I.I., and Krivenko A.G., One-step synthesis of nitrogen-doped few-layer graphene structures decorated with Mn 1.5 Co 1.5 O 4 nanoparticles for highly efficient electrocatalysis of oxygen reduction reaction, Mendeleev Commun., 2022, vol. 32, p. 494.
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2. Fig. 1. SEM images of PdNi/MGS (a) and PdNimod/MGS (b) samples.

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3. Fig. 2. TEM images of PdNi/MGS (a) and PdNimod/MGS (b) samples. The corresponding electron diffraction patterns are shown in the insets.

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4. Fig. 3. (a) CVA for PdNi/MGS (1) and PdNimod/MGS (2), deaerated solution of 0.1 M KOH, 50 mV/s. (b) Oxidation of methanol on PdNi/MGS (1), PdNimod/MGS (2) and Pt/C (3), deaerated solution of 0.1 M KOH + 1 M CH3OH, 50 mV/s, 2000 rpm.

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