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The study of the pyrolysis products of Ni (II) and Pd (II) chelate complexes as catalysts for the oxygen electroreduction reaction

Nitrogen-doped carbon materials were prepared by the pyrolysis of carbon black Vulcan XC-72 impregnated with nitrogen-containing Pd (II) and Ni (II) complexes. The composition of materials was studied at different stages of their synthesis. It is shown that nanoparticles of metals and/or their oxide...

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Bibliographic Details
Published in:Journal of solid state electrochemistry 2021-03, Vol.25 (3), p.789-796
Main Authors: Belenov, Sergey V., Guterman, Vladimir E., Popov, Leonid D., Kozakov, Alexey T., Nikolsky, Anatoly V., Danilenko, Maria V., Safronenko, Olga I., Nikulin, Alexey Yu
Format: Article
Language:English
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Summary:Nitrogen-doped carbon materials were prepared by the pyrolysis of carbon black Vulcan XC-72 impregnated with nitrogen-containing Pd (II) and Ni (II) complexes. The composition of materials was studied at different stages of their synthesis. It is shown that nanoparticles of metals and/or their oxides are not the main electroactive component of materials in the oxygen electroreduction reaction (ORR). It is established that the palladium complex provides a much more efficient doping of carbon with nitrogen compared to the nickel complex of a similar composition. This results in the high ORR electrocatalytic activity of the catalyst obtained, palladium complex being used in an alkaline medium. This material is a promising one to be used as an electrocatalyst in fuel cells with an anion-conducting membrane. Graphical abstract
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-020-04854-1